Home |
Search |
Today's Posts |
![]() |
|
Woodworking (rec.woodworking) Discussion forum covering all aspects of working with wood. All levels of expertise are encouraged to particiapte. |
Reply |
|
LinkBack | Thread Tools | Display Modes |
#41
![]() |
|||
|
|||
![]()
Edwin Pawlowski wrote:
"joey" wrote in message Actually it might matter, true it failed this test but.. The test sounds like a 1 time shock test and not repeated cycles of getting damp and drying out over and over.. that would normally be the case outside over time. One glue could very well maintain its strength or atleast deteriorate at a lesser rate and another glue wouldn't. Sorta like a sprinter vs a marathon runner. The test was done outside of the capability of the material. It is a bogus test as the glue was not designed to be submerged. Reminds me of 20-20 setting GM trucks ablaze. Poor journalism on the part of the author and editors of Wood magazine. Minor nit--it was Dateline that set the GM trucks on fire--20-20 blew up Ford sedans about 20 years previously. Same guy though--the simple fact that he had a job after 20-20 speaks volumes about the integrity of the network news establishment. Ed http://pages.cthome.net/edhome -- --John Reply to jclarke at ae tee tee global dot net (was jclarke at eye bee em dot net) |
#42
![]() |
|||
|
|||
![]()
J T wrote:
Sat, Jul 10, 2004, 3:50am (EDT+4) (Leon) claims: I don't think it really matters how realistic the testings were. What matters is that all glues were treated and tested the same. TBIII cost 60% more and was out performed by TBII. Of course it matters. To start with, if the wood wasn't painted, epoxied, or some type of protection, it's pretty well meaningless as far as I'm concerned. How many people re going to make a boat, then not paint it? You've clearly never owned a wooden boat. They leak like sieves until the planking takes up enough water to swell and tighten the seams down onto the caulking. And if there's no water in the bilge, be very afraid. Further, there are some types, the Scandinavian Folkboats for example, that are quite capable of crossing oceans and that are traditionally finished bright, not painted. Or, make a lawn chair, and leave it out in a driving rain without paint? Not too many. Most who made it out of Lapacho or Jarrah would. That's the whole point of using very hard highly decay resistant exotic woods--you don't have to baby them that way. If a controlled test doesn't compare to real-life, then chances are, the test is worthless. Besides, waay too many details left out - for all I know, the glue could have held, and a thin layer of the saturated wood just peeled off. And, you didn't say how long the glue was given to set, if it was clamped, and so on. I've not used any Titebond III, and possibly never will, because Titebond II does it for me. But, if I did use it, even in a boat, I wouldn't be having it without some type of protection, i.e., paint, epoxy, fibreglass, etc., over it, and I wouldn't be worrying about it holding.. With that attitude I strongly advise you not to go farther from land than you can swim in any boat that you have built. Details, more details. Making a success of the job at hand is the best step toward the kind you want. - Bernard M. Baruch More likely, your boss gets a raise and/or promotion, from getting credit for your work. - JOAT -- --John Reply to jclarke at ae tee tee global dot net (was jclarke at eye bee em dot net) |
#43
![]() |
|||
|
|||
![]()
Leon wrote:
The submerged time was 24 hours and considerably longer than the 1 hour that I indicated. IHMO however, a Water Proof glued joint being submerged for 1 day during a 4 day test is not beyond the manufacturers stated limitations of continuiously being submerged or use below a water line like a glue aplication on a boat bottom. I guess we should ask Franklin what their definition of Water Proof is. It would make this sort of discussion much more fruitful if people would actually read the bloody label on the bloody product before commenting. From the label: "Not for continuous submersion or for use below the waterline". Also "Not for structural or load-bearing applications". The "water-proof" claim I believe is based on ANSHI/HPVA Type I tests, which are aimed at the glues used to bond together the plies in plywood, rather than at glues for general-purpose bonding. As such, the use of that rating is IMO a bit misleading. -- --John Reply to jclarke at ae tee tee global dot net (was jclarke at eye bee em dot net) |
#44
![]() |
|||
|
|||
![]()
Jay Pique wrote:
On Sat, 10 Jul 2004 21:18:36 GMT, "Edwin Pawlowski" wrote: The author acknowledges the limiation but does it anyway. He notes that it was a severe test. Sort of like testing bicycle tires by putting them on an 18 wheeler then saying they did not fare well. I happen to like Wood magazine, but this test is completely wrong. The product should have been tested within the limits of its design. Period. The Titebond people could end up demanding a retraction and re-testing. I would. Ed I almost agree - and certainly would if my name were Franklin. I believe the test is useful in a very limited context, ie. if only to illustrate just how illusive some product comparisons can really be. I'm in the "planning" stages of a comparison between the Three-Ts and Gorilla glue. (Joints are glued and set, but not yet soaked and separated by measured force.) Perhaps I'll do the testing after 1, 3 and 24 hours for each of the three samples I've made. Statistically probably not a large enough sample size for any real conclusions, but potentially a spur to Titebond to come clean on "waterproof" but not to be submerged. I'm a bit puzzled as to how much more "clean" one can get on this point than "not for continuous submersion". And why did T2 fare better? JP ************** T1 user 98% of the time...the other two reserved for CA on my wounds! -- --John Reply to jclarke at ae tee tee global dot net (was jclarke at eye bee em dot net) |
#45
![]() |
|||
|
|||
![]()
Not what I meant but yes more samples would be better but I think their test
method doesn't tell the whole story. The idea I was trying to convey in previous post is to try and determine deteroration rate over repeated exposure the elements. In my hypothetical test results TB2 while having a stronger initial strength then TB3 TB2 after repeated exposure to water and drying didn't maintain its strength as well as TB3 BTW I wonder what the difference of 200, 300 or 1000PSI really translates to. The difference of being hit by a pickup, 18 wheeler or a train "Leon" wrote in message om... If your indicating that perhaps a larger sampling would give different results, I agree. Like best 5 out of 8. This could have been a fluke in that a lesser glue did better than a better glue. Either way, in this particular test, neither glue had the advantage as both test pieces were taken from the same board with IIRC consistent grain. |
#46
![]() |
|||
|
|||
![]() "joey" wrote in message news:kPbIc.56109$MB3.34915@attbi_s04... Not what I meant but yes more samples would be better but I think their test method doesn't tell the whole story. The idea I was trying to convey in previous post is to try and determine deteroration rate over repeated exposure the elements. In my hypothetical test results TB2 while having a stronger initial strength then TB3 TB2 after repeated exposure to water and drying didn't maintain its strength as well as TB3 Yeah,....but your example was hypothetical, it did not really happen. I under stand that under a different circumstance the out come could be different. But could be is not yet fact. The testing reviled results that one would not expect from a glue sold as superior and marketed as water proof. Until there are other tests by another third party, you have nothing other than the Wood Magazine tests to base a good decision on when considering which of the 2 glues to use if these are your only choices. Further more, reading Franklins limitations on the 2 glues on their web page indicates that there are more limitations on the TB3 glue than the TB2 glue when it comes to using it in an application that require strength. Both glues have the same limitations as far as being used around water. With those facts why would one be labeled water proof? The reason that TB3 is called water proof is that it passes shear tests after the glue was soaked in boiling water on 2 occasions and dried out. TB2 passes shear test on soakings on 3 occasions and dried out. Which one sounds like the one that would hold up to "normal and common" exposure to water to you? BTW I wonder what the difference of 200, 300 or 1000PSI really translates to. The difference of being hit by a pickup, 18 wheeler or a train |
#47
![]() |
|||
|
|||
![]()
Brian Jones writes:
I was just about to buy a gallon of TiteBond III to make some planters. They would almost certainly be continuously damp. Now I don't know what to buy. Resorcinol. Charlie Self "Politics is the art of looking for trouble, finding it whether it exists or not, diagnosing it incorrectly, and applying the wrong remedy." Ernest Benn |
#48
![]() |
|||
|
|||
![]() "J. Clarke" wrote in message It would make this sort of discussion much more fruitful if people would actually read the bloody label on the bloody product before commenting. From the label: "Not for continuous submersion or for use below the waterline". Also "Not for structural or load-bearing applications". The "water-proof" claim I believe is based on ANSHI/HPVA Type I tests, which are aimed at the glues used to bond together the plies in plywood, rather than at glues for general-purpose bonding. As such, the use of that rating is IMO a bit misleading. That is the back label. Or a portion of it is. The rest is on a web page. The front label says "Waterproof" not once, but twice. No restrictions are made on the front, no asterisk, no limitations. From reading different things I knew there was a limitation so I read the back. If I was shopping for glue for the first time, I'd read the front label first. We should not be required to go to a web page to find the particular limitations of the term "waterproof" since we learned the dictionary term many years ago. While I disagree with the testing procedure used by Wood Magazine, I have to also fault Franklin for not being very explicit. |
#49
![]() |
|||
|
|||
![]() "J. Clarke" wrote in message ... It would make this sort of discussion much more fruitful if people would actually read the bloody label on the bloody product before commenting. From the label: "Not for continuous submersion or for use below the waterline". Also "Not for structural or load-bearing applications". I went to Franklins site and read the limitations of both glues. Both the WATER PROOF labeled TB3 and the WEATHER RESISTANT labeled TB 2 have the same limitation of not using below a water line and both should not be submerged for continued periods of time. What is considered continuiously submerged? Since not to be used below the water line would suggest that the joint would not hold up well if it would never be out of the water, I have to believe that not continiousely submerged would be short of used below the water line, like on an application on the bottom of a boat that stays in the water for months on end. Not Continuiously submerged could mean less than 1 week or 2 weeks, or 1 day. Who knows? Additionally the limitation on TB3 indicates to not use the TB3 on a structural or load bearing application. TB2 does not have this limitation. TB3 can be used in 10 degree F lower temperature that TB2. Anyway, The TB 3 passes the Type 1 shear test after the test piece was soaked in boiling water 2 times and dried out 2 times. TB 2 passes the Type 2 shear test after the test piece was soaked 3 times and driedout 3 times. Titebond really does not indicate which glue is better when used around normal and likely water exposure situations. It does indicate which glue should not be used for structural or load bearing applications. With all that information and the Wood Magazine test results, when would TB3 be a better choice over TB2? The only time that I see that TB3 would be a better choice over TB2 is if you are going to use the project in boiling water and will assembly of the project will be in 10 degree F colder temperatures than TB2 can be use at. The "water-proof" claim I believe is based on ANSHI/HPVA Type I tests, which are aimed at the glues used to bond together the plies in plywood, rather than at glues for general-purpose bonding. As such, the use of that rating is IMO a bit misleading. Very misleading indeed, along with the Water PROOF claim on the front label. -- --John Reply to jclarke at ae tee tee global dot net (was jclarke at eye bee em dot net) |
#50
![]() |
|||
|
|||
![]() real lab work is pretty exacting stuff. in the hard sciences a test should be done by more than one lab, (especially if the results run counter to available data) and all of the labs be held to very high standards. while the manufacturer's lab work (afaik) wasn't done independently (can't find anything about it on their website), neither was the magazines. further, the magazine's sample size was probably too small to be significant... and what kind of certification does their lab carry? point being, more data is needed. |
#51
![]() |
|||
|
|||
![]()
FWIW I glued up four 3 inch fir strips using Gorilla glue to make a
panel for a bird feeder 3 years ago. No battens or nails. It hangs outside year around. Its never been submerged but I doubt "water resistant" would have done as well. BTW Its for suet so its pretty greasy in the summertime too. Jack David wrote in message m... Excellent point! 'Waterproof' claims are far different than merely 'water resistant'. A submersion test seems legitimate. I doubt Franklin can pursue any legal recourse against the magazine. RKON wrote: "Edwin Pawlowski" wrote in message .. . The test was done outside of the capability of the material. It is a bogus test as the glue was not designed to be submerged. Reminds me of 20-20 setting GM trucks ablaze. Poor journalism on the part of the author and editors of Wood magazine. Ed http://pages.cthome.net/edhome Hold on there Ed. The back cover of the same issue. It reads "The Best Wood Glue Ever". It goes on to say What makes Titebond III Ultimate Wood Glue the best ever? It's Waterproof, yet it cleans up with water...... In case one forgot what waterprrof means: wa·ter·proof - Impervious to or unaffected by water. I do not see any asterisks or footnotes on the Ad. I think they are making a bold claim and they are fair game. If they can't even compete then maybe they should have it read " The Best Wood Glue Ever as long as you don't immerse it Water" And based on the tests it doesn't appear to be the best regardless. It seems to me that marketing went a bit to far and they are coming unglued in their claims. I wouldn't jump all over the testing performed in the article. They have set themselves up by making the bold claims. You don't use Titebond by chance do you? Rich |
#52
![]() |
|||
|
|||
![]() "Leon" wrote in message ... "joey" wrote in message news:kPbIc.56109$MB3.34915@attbi_s04... Not what I meant but yes more samples would be better but I think their test method doesn't tell the whole story. The idea I was trying to convey in previous post is to try and determine deteroration rate over repeated exposure the elements. In my hypothetical test results TB2 while having a stronger initial strength then TB3 TB2 after repeated exposure to water and drying didn't maintain its strength as well as TB3 Yeah,....but your example was hypothetical, it did not really happen. I under stand that under a different circumstance the out come could be different. But could be is not yet fact. The testing reviled results that one would not expect from a glue sold as superior and marketed as water proof. Hypothetical yes but for me personally I'd be more interested in knowing which one has better long term holding power under real repeated exposure Until there are other tests by another third party, you have nothing other than the Wood Magazine tests to base a good decision on when considering which of the 2 glues to use if these are your only choices. Further more, reading Franklins limitations on the 2 glues on their web page indicates that there are more limitations on the TB3 glue than the TB2 glue when it comes to using it in an application that require strength. Both glues have the same limitations as far as being used around water. With those facts why would one be labeled water proof? Very subjective term there really is nothing that is water proof given enough time. Taking it to the extreme rivers erode mountains and waves erode coastlines The reason that TB3 is called water proof is that it passes shear tests after the glue was soaked in boiling water on 2 occasions and dried out. TB2 passes shear test on soakings on 3 occasions and dried out. Right Type 1 boiled the wood, type 2 soaked the wood (didn't say what temp), type 1 also had higher baking temps for a little longer Which one sounds like the one that would hold up to "normal and common" exposure to water to you? Probably either one although the longer open time is attractive. Need better data to access wether it's really worth the extra money. I'm a hobbiest so the cost isn't a big deal even if it's a little better I might switch. Kind of funny I had reservations about even using it cause I know what to expect from TB and TB2 sorta like old friends! If I was in the business and used a lot of glue that would be another matter. I guess I'll know in 12 years if the stools recently made out last the previous ones ![]() BTW I wonder what the difference of 200, 300 or 1000PSI really translates to. The difference of being hit by a pickup, 18 wheeler or a train |
#53
![]() |
|||
|
|||
![]() "RKON" wrote in message news:_H_Hc.21218$r3.13006@okepread03... Hold on there Ed. The back cover of the same issue. It reads "The Best Wood Glue Ever". It goes on to say What makes Titebond III Ultimate Wood Glue the best ever? It's Waterproof, yet it cleans up with water...... In case one forgot what waterprrof means: wa·ter·proof - Impervious to or unaffected by water. Exactly.! Actually it appears that Franklin is using the a different definition for WATER PROOF than what the average or common wood worker would define as Water Proof. The Type 1 rating apparently is what defines Water Proof on the TB 3 label. ADHESIVE, TYPE I FULLY WATERPROOF: Forms a bond that will retain practically all of its strength when "occasionally"subjected to a thorough wetting and drying; bond shall be of such quality that specimens will withstand shear and two cycle boil test specified in ANSI/HPVA HP (2000). That does not mean Water Proof to me. I believe that Franklin should have qualified on the front of the label what their definition of Water Proof is. It seems to me that marketing went a bit to far and they are coming unglued in their claims. I wouldn't jump all over the testing performed in the article. They have set themselves up by making the bold claims. Ah.... an acurate observation IMHO. |
#54
![]() |
|||
|
|||
![]()
Gorilla or Elmer's ProBond Polyurethane will work well as the test indicated
these to be 4 times stronger in strength than TB3. Keep in mind also that TB3 did not fail the water test.!!!!!! It simply was outperformed in strength by its sister TB2. The point of my original post was to point out that TB2 seems to be stronger in a water application than TB3 and much cheaper. |
#56
![]() |
|||
|
|||
![]() "Edwin Pawlowski" wrote in message .. . That is the back label. Or a portion of it is. The rest is on a web page. The front label says "Waterproof" not once, but twice. No restrictions are made on the front, no asterisk, no limitations. From reading different things I knew there was a limitation so I read the back. If I was shopping for glue for the first time, I'd read the front label first. We should not be required to go to a web page to find the particular limitations of the term "waterproof" since we learned the dictionary term many years ago. While I disagree with the testing procedure used by Wood Magazine, I have to also fault Franklin for not being very explicit. Now... we are on the same page Edwin. The glue is simply marketed to be something that it is not, unless defined by its "standards" tests. Most people do not realize that the Water Proof label does mean Water Proof by common knowledge definitions. |
#57
![]() |
|||
|
|||
![]()
Edwin Pawlowski wrote:
"J. Clarke" wrote in message It would make this sort of discussion much more fruitful if people would actually read the bloody label on the bloody product before commenting. From the label: "Not for continuous submersion or for use below the waterline". Also "Not for structural or load-bearing applications". The "water-proof" claim I believe is based on ANSHI/HPVA Type I tests, which are aimed at the glues used to bond together the plies in plywood, rather than at glues for general-purpose bonding. As such, the use of that rating is IMO a bit misleading. That is the back label. Or a portion of it is. The rest is on a web page. The front label says "Waterproof" not once, but twice. No restrictions are made on the front, no asterisk, no limitations. From reading different things I knew there was a limitation so I read the back. If I was shopping for glue for the first time, I'd read the front label first. We should not be required to go to a web page to find the particular limitations of the term "waterproof" since we learned the dictionary term many years ago. No web page search is required unless you want to know the details of the testing. If you expect them to put the whole ANSI spec on each bottle then expect to pay about 40 bucks a bottle because the spec is copyrighted and ANSI charges for each copy. While I disagree with the testing procedure used by Wood Magazine, I have to also fault Franklin for not being very explicit. -- --John Reply to jclarke at ae tee tee global dot net (was jclarke at eye bee em dot net) |
#58
![]() |
|||
|
|||
![]() |
#59
![]() |
|||
|
|||
![]()
What you say is true but the testing conditions used are no less precise
than most of the junk science that is so common. wrote in message ... real lab work is pretty exacting stuff. in the hard sciences a test should be done by more than one lab, (especially if the results run counter to available data) and all of the labs be held to very high standards. while the manufacturer's lab work (afaik) wasn't done independently (can't find anything about it on their website), neither was the magazines. further, the magazine's sample size was probably too small to be significant... and what kind of certification does their lab carry? point being, more data is needed. |
#60
![]() |
|||
|
|||
![]() "joey" wrote in message news:U4eIc.56732$MB3.2498@attbi_s04... Hypothetical yes but for me personally I'd be more interested in knowing which one has better long term holding power under real repeated exposure Well yeah...that is reasonable but what do you do in the mean time? You have to go with the test results available and what Franklyn "actualy uses" as the definition of Water Proof. Very subjective term there really is nothing that is water proof given enough time. Taking it to the extreme rivers erode mountains and waves erode coastlines Yes... so you have to compare the two glues and see which has the most strength in those type aplications involving water. Common knoledge defines Water Proof as not being affected by water. From the "get go" the TiteBond label is misleading to a majority of woodworkers. You and I no longer fall within that group as we now know that the TiteBonds Water Proof label is not defined by the common knowledge definition. The reason that TB3 is called water proof is that it passes shear tests after the glue was soaked in boiling water on 2 occasions and dried out. TB2 passes shear test on soakings on 3 occasions and dried out. Right Type 1 boiled the wood, type 2 soaked the wood (didn't say what temp), type 1 also had higher baking temps for a little longer Which one sounds like the one that would hold up to "normal and common" exposure to water to you? Probably either one although the longer open time is attractive. That's right. You cannot use the common definition of Water Proof to back up you decision of which one to use. Need better data to access wether it's really worth the extra money. I'm a hobbiest so the cost isn't a big deal even if it's a little better I might switch. I agree, but so far the TB2 has shown to be better than TB3 in at least one test. ;~) The information at Titebonds site certainly does not back up TB3 as being superior to TB2. Kind of funny I had reservations about even using it cause I know what to expect from TB and TB2 sorta like old friends! If I was in the business and used a lot of glue that would be another matter. I guess I'll know in 12 years if the stools recently made out last the previous ones ![]() Its a tough choice. Consider this. You know how a higher priced same brand item is usually equated as better. I bet Franklin is betting most people will equate this the same way also. If the TB3 glue was the same price as TB2, would you think it was superior to TB2 knowing that it is truely not water proof? I think we are witnessing a way for Franklin to market a product with about the same qualities for a higher price. |
#61
![]() |
|||
|
|||
![]() "J. Clarke" wrote in message ... Edwin Pawlowski wrote: No web page search is required unless you want to know the details of the testing. If you expect them to put the whole ANSI spec on each bottle then expect to pay about 40 bucks a bottle because the spec is copyrighted and ANSI charges for each copy. I think what Edwin is indicating here is that the WaterProof label in this instance should be clarified on the bottle front label as not really being water proof as a common person would define it and that it is more of a description of the ANSI spec. |
#62
![]() |
|||
|
|||
![]() "Leon" wrote in message I think what Edwin is indicating here is that the WaterProof label in this instance should be clarified on the bottle front label as not really being water proof as a common person would define it and that it is more of a description of the ANSI spec. Right, Leon. I just took an unscientific poll from a group of one person. I asked my wife about the glue from what she saw on the label. Would you use the TB3 for outdoor furniture? Yes Would you use the TB3 for a boat or pool device? Yes Showed her the label of TB2 and asked the same questions. Answer was yes, no. The difference being waterproof versus water resistant. I then asked her to read the back of the label. What is the ANSI spec? Of course she had no idea as do most of us at least until this discussion made me look it up. Ed |
#63
![]() |
|||
|
|||
![]() I believe that Franklin is using smoke and mirrors here. ;~) |
#64
![]() |
|||
|
|||
![]() |
#66
![]() |
|||
|
|||
![]()
why are you taking it on faith that the new and "improved"
glue is really better than the TBII? "New" isn't always better. If an independent test shows poor performance, I see no logic in expecting the testers to disregard the results and give a product more chances. Edwin Pawlowski wrote: I have to imagine that Franklin would have done some testing to establish that TB3 is stronger than TB2 under normal conditions or real use. FWIW, Franklin specs state that the TB2 meets the Type II specs while the TB3 meets Type I specs. |
#67
![]() |
|||
|
|||
![]()
J T wrote:
Sun, Jul 11, 2004, 9:26am lid (J.*Clarke) says: You've clearly never owned a wooden boat. They leak like sieves until the planking takes up enough water to swell and tighten the seams down onto the caulking. snip Yeah, yeah, yeah, I know, that's why buckets were invented. I know, there's boats been made, and some "still" made, with NO caulking, no glue, and not painted. Actually, glue as a structural material in the construction of wooden boats is a very recent innovation and you'll find darned few other than cold-molded that use it to hold together anything that takes any kind of load. And yeah, some outdoor furniture isn't painted, or finished. You seem to take it as a given that I don't know about any of that. Well, yeah, I do know about it - and none of it was the point. You missed the point, which was about the glue. But your assertions with regard to the glue were that some kind of protective coating would always be used, and that is simply not the case. The correct solution is not to rely on paint to keep the glue dry, the correct solution is to use a glue that doesn't need to be kept dry, or even better, a construction that doesn't depend on glue to maintain its structural integrity. By the way, a well made wooden boat doesn't "need" to leak. Unless you're using cold-molded ply, it's going to leak. If it appears not to be then look for what's absorbing the water and make sure that it's not about to split your hull wide open (rice was a nasty cargo in the days of sail for that reason). And, with my attitude, you won't have to worry about getting invited for a ride in any boat I make. LMAO That's OK, I would have turned down the offer anyway. I'm crazy, but not _that_ crazy. Making a success of the job at hand is the best step toward the kind you want. - Bernard M. Baruch More likely, your boss gets a raise and/or promotion, from getting credit for your work. - JOAT -- --John Reply to jclarke at ae tee tee global dot net (was jclarke at eye bee em dot net) |
#68
![]() |
|||
|
|||
![]() "David" wrote in message . com... why are you taking it on faith that the new and "improved" glue is really better than the TBII? "New" isn't always better. If an independent test shows poor performance, I see no logic in expecting the testers to disregard the results and give a product more chances. If you go beyond the water tests, TB# did out perform the TB2. Besides, it is more expensive so it must be better. Right? Ed |
#69
![]() |
|||
|
|||
![]()
Sun, Jul 11, 2004, 5:40pm lid (J.=A0Clarke) put out:
Actually, glue as a structural material in the construction of wooden boats is a very recent innovation and you'll find darned few other than cold-molded that use it to hold together anything that takes any kind of load. Glue, structural material? I wouldn't call it a "structural material". I'd call it a fasener. Chemical fastener, rather than a mechanical fastener, such as a peg, or nail. Also, you don't define "very recent". Actually, adhesives of various types have been used for a long time in different types of boatbuilding, and in various cultures. And, yeah, theres a lot more than just cold-molded that use it. But, I don't think cold-molded boats use an awful lot of Titebond, I'm reasonably sure they use epoxy - along with fibreglass cloth. In this case, I define "a long time" as hundreds of years. This doesn't come right out and say "glue", but here's a reference circa 1717. http://www.bruzelius.info/Nautica/Shipbuilding/Sutherland(1717b)_p185.html= Or, if you want to go a bit further back, here's a quote: "Adhesives are not a recent development but have been in use throughout history.=A0 From the Romans that caulked their ships with beeswax and wood tar to the Egyptians that used gum from the acacia tree and egg glue." from he http://www.duroplastic.com/art_adsv.html Somewhere, withing the last year, I read an article that claimed cavemen developed some sort of epoxy glue. Don't know about that one, but who knows? But your assertions with regard to the glue were that some kind of protective coating would always be used, and that is simply not the case. The correct solution is not to rely on paint to keep the glue dry, the correct solution is to use a glue that doesn't need to be kept dry, or even better, a construction that doesn't depend on glue to maintain its structural integrity. What you claim was an assertion, was what I said in regards to a real-life type test, and this is what I said. "Of course it matters. To start with, if the wood wasn't painted, epoxied, or some type of protection, it's pretty well meaningless as far as I'm concerned. How many people re going to make a boat, then not paint it? Or, make a lawn chair, and leave it out in a driving rain without paint? Not too many." Unless you're using cold-molded ply, it's going to leak. If it appears not to be then look for what's absorbing the water and make sure that it's not about to split your hull wide open (rice was a nasty cargo in the days of sail for that reason). snip I'll remember that next time I sail over for a load of rice. I did say a "well-made" wooden boat doesn't need to leak. You seem to be talking about a wooden boat that's been damaged, and not repaired, or not well made; and yeah, I know of expensive boats, made with a balsa wood core, that sucks up water without anyone knowing - I also know their fibreglass sheathing was damaged, and not inspected, allowing leaks. Even a well-made boat can leak in that case. But, if a leaky boat makes you happy, no prob. The epoxy and fibreglass is what keeps cold-molded boats from leaking, a lot of times that's what holds them together. Long ago, the Boy Scouts had plans for a canoe, made out of 2X2s, I believe, orange crate slats, and then covered with canvas, and that painted. I never made one, but understand they didn't leak. So, I'd call that well made. A lot of (expensive) wooden canoes are still made in a similar manner, and their owners would be extremely peeved if they leaked. But, maybe all the boats and canoes I just cited were all cold molded, and nobody realized it. For what it's worth, I am planning on at least one boat. But, no worries about it sinking, even if it were to leak. It'll have enough floatation, it wouldn't matter if I chainsawed a hole in the bottom, it'll still float. Plywood boat, caulk, glue, nails, fibreglass, epoxy, paint, I'm not worried about it leaking. But, the original subject was a glue test, and I didn't think it was a realistic test. And, still don't. Making a success of the job at hand is the best step toward the kind you want. - Bernard M. Baruch More likely, your boss gets a raise and/or promotion, from getting credit for your work. - JOAT |
#70
![]() |
|||
|
|||
![]()
J T wrote:
Sun, Jul 11, 2004, 5:40pm lid (J.*Clarke) put out: Actually, glue as a structural material in the construction of wooden boats is a very recent innovation and you'll find darned few other than cold-molded that use it to hold together anything that takes any kind of load. Glue, structural material? I wouldn't call it a "structural material". I'd call it a fasener. Chemical fastener, rather than a mechanical fastener, such as a peg, or nail. If you want to call it a fastener, then consider that the performance of glue ranges from that of a strand of spaghetti on up. Also, you don't define "very recent". Actually, adhesives of various types have been used for a long time in different types of boatbuilding, and in various cultures. So which cultures build ocean-crossing vessels that depended on glue to maintain their structural integrity? And, yeah, theres a lot more than just cold-molded that use it. Not to maintain primary structural integrity. But, I don't think cold-molded boats use an awful lot of Titebond, I'm reasonably sure they use epoxy - along with fibreglass cloth. Epoxy in some cases, resorcinol in others. And while it is possible to fiberglass over a cold-molded hull, that is not a necessary part of the process. In this case, I define "a long time" as hundreds of years. This doesn't come right out and say "glue", but here's a reference circa 1717. http://www.bruzelius.info/Nautica/Shipbuilding/Sutherland(1717b)_p185.html Or, if you want to go a bit further back, here's a quote: "Adhesives are not a recent development but have been in use throughout history. From the Romans that caulked their ships with beeswax and wood tar to the Egyptians that used gum from the acacia tree and egg glue." from he http://www.duroplastic.com/art_adsv.html Caulking does not depend on any kind of adhesive unless you define the term _very_ loosely. Any source that equates caulking of wooden ships with adhesive bonding is at best questionable. Somewhere, withing the last year, I read an article that claimed cavemen developed some sort of epoxy glue. Don't know about that one, but who knows? And what kind of boats did he glue together with it? But your assertions with regard to the glue were that some kind of protective coating would always be used, and that is simply not the case. The correct solution is not to rely on paint to keep the glue dry, the correct solution is to use a glue that doesn't need to be kept dry, or even better, a construction that doesn't depend on glue to maintain its structural integrity. What you claim was an assertion, was what I said in regards to a real-life type test, and this is what I said. "Of course it matters. To start with, if the wood wasn't painted, epoxied, or some type of protection, it's pretty well meaningless as far as I'm concerned. How many people re going to make a boat, then not paint it? Or, make a lawn chair, and leave it out in a driving rain without paint? Not too many." Please explain how that statement is different from an assertion that some kind of protective coating will always be used in glued construction. Unless you're using cold-molded ply, it's going to leak. If it appears not to be then look for what's absorbing the water and make sure that it's not about to split your hull wide open (rice was a nasty cargo in the days of sail for that reason). snip I'll remember that next time I sail over for a load of rice. I did say a "well-made" wooden boat doesn't need to leak. You seem to be talking about a wooden boat that's been damaged, and not repaired, or not well made; If you consider the ships of the United States Navy to be "not well made" then perhaps your assertion might hold some validity. and yeah, I know of expensive boats, made with a balsa wood core, that sucks up water without anyone knowing - I also know their fibreglass sheathing was damaged, and not inspected, allowing leaks. I wasn't talking about frozen snot, I was talking about wood. Even a well-made boat can leak in that case. But, if a leaky boat makes you happy, no prob. The epoxy and fibreglass is what keeps cold-molded boats from leaking, a lot of times that's what holds them together. What leads you to believe that cold molded construction involves fiberglass? If you believe that either fiberglass or epoxy is a necessary part of the process then you have been very sadily misinformed. Cold molded construction requires veneer, a waterproof adhesive, a mold, and some means of applying pressure during cure--that might involve a two-part mold or a vacuum bag or some other process. There is no fiberglass involved and epoxy is not the best adhesive to use for the purpose. Long ago, the Boy Scouts had plans for a canoe, made out of 2X2s, I believe, orange crate slats, and then covered with canvas, and that painted. Commonplace canoe construction. I never made one, but understand they didn't leak. If you put fasteners through the canvas then it leaked until the wood swelled. Unlike you, I _have_ owned such a canoe. So, I'd call that well made. A lot of (expensive) wooden canoes are still made in a similar manner, and their owners would be extremely peeved if they leaked. But, maybe all the boats and canoes I just cited were all cold molded, and nobody realized it. Very few canoes are in the water long enough at a time for seepage to be an issue. Take that same canoe and tie it up at a marina and leave it there for a year and you'll find water in the bilge even if it's kept under cover so no rain gets in. You seem to think that one either has a leak that sinks the boat or one has a dry bilge. The truth is in between. For what it's worth, I am planning on at least one boat. But, no worries about it sinking, even if it were to leak. It'll have enough floatation, it wouldn't matter if I chainsawed a hole in the bottom, it'll still float. Plywood boat, caulk, glue, nails, fibreglass, epoxy, paint, I'm not worried about it leaking. Why would you need to caulk a plywood boat? However I think I'm beginning to see part of the problem. I suspect that you when you see the word "caulk" associate it with a product that you buy in a tube at Home Depot. That is not the sort of caulk that the Romans were using or the sort of caulk that the US Navy, the Royal Navy, the British East India Company, the Spanish Armada, or any of numerous other outfits that were famed for being able to go anywhere they wanted to any time they wanted to in wooden ships propelled by wind would be using. And that type of caulk is not used in the seams of modern boats either--the caulking is structural and must be driven into place with a mallet, a use to which such products are not amenable. When I think of a boat I don't think of something that sits on a trailer most of the time and gets towed down to the launching ramp to go fishing, I think of something that is launched once and stays in the water until it becomes necessary to remove it to clean the bottom or to prevent damage from ice, which vessel can when sufficient quantities of food and water are put aboard be aimed east and sailed until one bumps into Europe. The realities of such vessels are considerably different from the realities of trailer-boats. But, the original subject was a glue test, and I didn't think it was a realistic test. And, still don't. And I still don't think it's realistic to depend on paint to keep the glue dry. Making a success of the job at hand is the best step toward the kind you want. - Bernard M. Baruch More likely, your boss gets a raise and/or promotion, from getting credit for your work. - JOAT -- --John Reply to jclarke at ae tee tee global dot net (was jclarke at eye bee em dot net) |
#71
![]() |
|||
|
|||
![]()
Mon, Jul 12, 2004, 3:42am lid (J.=A0Clarke) who says:
If you want to call it a fastener, then consider that the performance of glue ranges from that of a strand of spaghetti on up. If it's so bad, why'd you call it structural material? So which cultures build ocean-crossing vessels that depended on glue to maintain their structural integrity? Noah. http://www.carm.org/evo_questions/noahsarkpossible.htm http://www.giveshare.org/BibleStudy/...rwood-ark.html There's more. Not to maintain primary structural integrity. See Noah. Epoxy in some cases, resorcinol in others. And while it is possible to fiberglass over a cold-molded hull, that is not a necessary part of the process. Fibreglass would be for me. It would help keep the bottom from abrading. I'm not taking about some sail boat or something, I'm talking about a boat that'll be run up on shore, in shallow water, in other words, used. Caulking does not depend on any kind of adhesive unless you define the term _very_ loosely. Any source that equates caulking of wooden ships with adhesive bonding is at best questionable. You might want to tell the British that. Their traditional method of caulking was oakum, then pine tar. And what kind of boats did he glue together with it? Didn't ask. Please explain how that statement is different from an assertion that some kind of protective coating will always be used in glued construction. Don't have to. I never said a couting would always be used. If you consider the ships of the United States Navy to be "not well made" then perhaps your assertion might hold some validity. Last I'd heard, most of them are now made out of steel. I wasn't talking about frozen snot, I was talking about wood. An unpainted, glued together boat? What leads you to believe that cold molded construction involves fiberglass? Mostly because I've read articles on people builting cold-molded boats that wanted them to a last a long, long time, without major maintenance. If you believe that either fiberglass or epoxy is a necessary part of the process then you have been very sadily misinformed. Cold molded construction requires veneer, a waterproof adhesive, a mold, No it doesn't. It does require thin wood, which can be strips. Watrproof adhesive, yeah that's best, but partly depends on usage, which you seem to ignore. A mold isn't necessary, if you apply directly over an old hull - some people call that cold-molding, some don't. You probably don't. and some means of applying pressure during cure--that might involve a two-part mold or a vacuum bag or some other process. Staples, or tacks will work. There is no fiberglass involved and epoxy is not the best adhesive to use for the purpose. Depends on who's doing it. There is more than one way. Commonplace canoe construction. Orange crate slats commonplace canoe construction? If you put fasteners through the canvas then it leaked until the wood swelled. Unlike you, I _have_ owned such a canoe. Apparently you had a cheap canoe. I did say the Boy Scouts painted their canoes. And, the canvas canoes aren't made just by tacking canvas on, the canvas is protected with a coating - which makes the canoe waterproof. They don't need to have the wood swell so they won't leak. Very few canoes are in the water long enough at a time for seepage to be an issue. Take that same canoe and tie it up at a marina and leave it there for a year and you'll find water in the bilge even if it's kept under cover so no rain gets in. So? Condensation would do that. You seem to think that one either has a leak that sinks the boat or one has a dry bilge. The truth is in between. Do you think so? Why would you need to caulk a plywood boat? Well gee, I thought I'd either do that to **** you off, or to keep it from leaking. However I think I'm beginning to see part of the problem. I suspect that you when you see the word "caulk" associate it with a product that you buy in a tube at Home Depot. Ah, I see part of the problem. You think I don't know what caulk is. Well, I do. However, what I would use to caulk a plywood boat with, would indeed come in a tube. But, I don't sink so low as to shop at Home Depot. That is not the sort of caulk that the Romans were using or the sort of caulk that the US Navy, the Royal Navy, the British East India Company, the Spanish Armada, or any of numerous other outfits that were famed for being able to go anywhere they wanted to any time they wanted to in wooden ships propelled by wind would be using. And that type of caulk is not used in the seams of modern boats either--the caulking is structural and must be driven into place with a mallet, a use to which such products are not amenable. You left out that a "caulking iron" also has to be used in the process. I've already told you, I already know that, see somewhere up above about the oakum and pine tar. Wooden boats were often sheathed in sheet copper too, particularly war ships. So what? All sorts of things have been tried for caulking wooden boats, even horse manure. Again, so what? When I think of a boat I don't think of something that sits on a trailer most of the time and gets towed down to the launching ramp to go fishing, I think of something that is launched once and stays in the water until it becomes necessary to remove it to clean the bottom or to prevent damage from ice, Well now, you didn't say before, did you? which vessel can when sufficient quantities of food and water are put aboard be aimed east and sailed until one bumps into Europe. Well, that would be presuming it was in the Atlantic Ocean. Wouldn't work in the Pacific Ocean, or on a lake. The realities of such vessels are considerably different from the realities of trailer-boats. Gee, I am enlightened. I thought they were exacly the same. And I still don't think it's realistic to depend on paint to keep the glue dry. What is realistic is the fact that if someone makes a boat (a big boat, that can sail to Europe, if it's in the Atlantic ocean, and has enough food and water), that they're going to put paint on it. Or some kind of protective finish, unless maybe they've got a teak deck. Bottom paint is made specifically to put on the bottom of boats in sea water, to prevent under water growth, also called anti-fouling paint. But, maybe you won't paint the bottom, because you don't want to keep your glue dry. On my income, I'll make a boat out of plywood, put it on a trailer, take it fishing, then trailer it back home, and enjoy the hell out of it. It'll probablyy be caulked with butyl caulk, probably from Ace Hardware, or Wal-Mart, fastened with glue and nails, fibreglassed along the seams and bottom, and painted with latex paint. As long as it works for me, I really don't give a damn about anyone else and what they've got. I haven't had a lot to keep me occupied this weekend, and it's been fun, but you're just getting too silly. You're starting to sound like some of the officers I've worked for - "I know that's what I said, but that's not what I meant". Making a success of the job at hand is the best step toward the kind you want. - Bernard M. Baruch More likely, your boss gets a raise and/or promotion, from getting credit for your work. - JOAT |
#72
![]() |
|||
|
|||
![]() "J T" wrote in message ... Sun, Jul 11, 2004, 5:40pm lid (J. Clarke) put out: Actually, glue as a structural material in the construction of wooden boats is a very recent innovation and you'll find darned few other than cold-molded that use it to hold together anything that takes any kind of load. Glue, structural material? I wouldn't call it a "structural material". I'd call it a fasener. Chemical fastener, rather than a mechanical fastener, such as a peg, or nail. Yes, glues are structural materials. In fact TB 3 has limitations to not be used in load bearing or structural projects. TB2 does not have that limitation. Automotive wind shields and back glass is held in with a structural adhesive and or glue. Many GM minivans used structural ahdhesives and glues to bond the body panels together. Also, you don't define "very recent". Actually, adhesives of various types have been used for a long time in different types of boatbuilding, and in various cultures. And, yeah, theres a lot more than just cold-molded that use it. But, I don't think cold-molded boats use an awful lot of Titebond, I'm reasonably sure they use epoxy - along with fibreglass cloth. In this case, I define "a long time" as hundreds of years. This doesn't come right out and say "glue", but here's a reference circa 1717. http://www.bruzelius.info/Nautica/Shipbuilding/Sutherland(1717b)_p185.html Or, if you want to go a bit further back, here's a quote: "Adhesives are not a recent development but have been in use throughout history. From the Romans that caulked their ships with beeswax and wood tar to the Egyptians that used gum from the acacia tree and egg glue." from he http://www.duroplastic.com/art_adsv.html Somewhere, withing the last year, I read an article that claimed cavemen developed some sort of epoxy glue. Don't know about that one, but who knows? But your assertions with regard to the glue were that some kind of protective coating would always be used, and that is simply not the case. The correct solution is not to rely on paint to keep the glue dry, the correct solution is to use a glue that doesn't need to be kept dry, or even better, a construction that doesn't depend on glue to maintain its structural integrity. What you claim was an assertion, was what I said in regards to a real-life type test, and this is what I said. "Of course it matters. To start with, if the wood wasn't painted, epoxied, or some type of protection, it's pretty well meaningless as far as I'm concerned. How many people re going to make a boat, then not paint it? Or, make a lawn chair, and leave it out in a driving rain without paint? Not too many." Unless you're using cold-molded ply, it's going to leak. If it appears not to be then look for what's absorbing the water and make sure that it's not about to split your hull wide open (rice was a nasty cargo in the days of sail for that reason). snip I'll remember that next time I sail over for a load of rice. I did say a "well-made" wooden boat doesn't need to leak. You seem to be talking about a wooden boat that's been damaged, and not repaired, or not well made; and yeah, I know of expensive boats, made with a balsa wood core, that sucks up water without anyone knowing - I also know their fibreglass sheathing was damaged, and not inspected, allowing leaks. Even a well-made boat can leak in that case. But, if a leaky boat makes you happy, no prob. The epoxy and fibreglass is what keeps cold-molded boats from leaking, a lot of times that's what holds them together. Long ago, the Boy Scouts had plans for a canoe, made out of 2X2s, I believe, orange crate slats, and then covered with canvas, and that painted. I never made one, but understand they didn't leak. So, I'd call that well made. A lot of (expensive) wooden canoes are still made in a similar manner, and their owners would be extremely peeved if they leaked. But, maybe all the boats and canoes I just cited were all cold molded, and nobody realized it. For what it's worth, I am planning on at least one boat. But, no worries about it sinking, even if it were to leak. It'll have enough floatation, it wouldn't matter if I chainsawed a hole in the bottom, it'll still float. Plywood boat, caulk, glue, nails, fibreglass, epoxy, paint, I'm not worried about it leaking. But, the original subject was a glue test, and I didn't think it was a realistic test. And, still don't. Making a success of the job at hand is the best step toward the kind you want. - Bernard M. Baruch More likely, your boss gets a raise and/or promotion, from getting credit for your work. - JOAT |
#73
![]() |
|||
|
|||
![]() "Leon" wrote in message . .. Wood Magazine this month has a great article comparing the major brand glues. The 6 page article tests for strength and water resistance. And my "WalMart" Loctite galoo faired very well. More proof that (once they start stocking Two Cherries) all you need is a 'Mart... |
#74
![]() |
|||
|
|||
![]()
Brian,
Try epoxy. If you buy a 'quart kit' of WEST Epoxy {by Gueogeon Brothers} from a local West Marine {NOT the same company}, it may seem expensive - due to the small quantity. HOWEVER, it has SO MANY uses and abilities you will probably wonder how you got along without it. There are several 'mail order' sources as well. I use RAKA, from the company of the same name in Florida. I am a 'small user' and get quantities of 3 gallons at a time. Another good outfit is System Three - they have an EXCELLENT free booklet on the 'theory & practice' of using epoxies. Well worth contacting them for it. Regards & Good Luck, Ron Magen Backyard Boatshop {PS - I also use Titebond II in many places where epoxy is either not necessary, or I want something to simply 'squirt, smear, & clamp'. I use it for the 'garden projects' & 'Nautically Themed' planters, etc. that stay outdoors throughout the year. I've yet to have a 'glue failure'. } wrote in message ... On 11 Jul 2004 15:07:40 GMT, otforme (Charlie Self) wrote: Brian Jones writes: I was just about to buy a gallon of TiteBond III to make some planters. They would almost certainly be continuously damp. Now I don't know what to buy. Resorcinol. I know I should use it Charlie, but I really hate working with that stuff and it is expensive. I'm going to use a TiteBond, I just don't know with one.g Charlie Self |
#75
![]() |
|||
|
|||
![]()
Check out the responses that I have received form Titebond regarding the
tests. Look under Titebond response from headquarters posted this morning. "patrick conroy" wrote in message ... "Leon" wrote in message . .. Wood Magazine this month has a great article comparing the major brand glues. The 6 page article tests for strength and water resistance. And my "WalMart" Loctite galoo faired very well. More proof that (once they start stocking Two Cherries) all you need is a 'Mart... |
#76
![]() |
|||
|
|||
![]()
On Mon, 12 Jul 2004 17:33:08 GMT, "Leon"
wrote: Check out the responses that I have received form Titebond regarding the tests. Look under Titebond response from headquarters posted this morning. Leon- thank you for taking the time to correspond with the folks at titebond. you might consider inviting the titebond rep to post directly to rec.woodworking. I have a couple of questions to ask and I'm sure others do as well. I think we're a big enough forum to warrant their attention.... |
#77
![]() |
|||
|
|||
![]() |
#79
![]() |
|||
|
|||
![]()
Back during my automotive days it was very important that we used structural
glass adhesive to rebond new replacement windshields and the back glass. I always wondered how a shattered windshield provided much support. It was important that a wind shield not pop out if a car rolled over as the wind shield, back glass and the adhesive that held it in place helped keep the pillars in place so that the roof hopefully would not collapse. "J T" wrote in message ... Mon, Jul 12, 2004, 1:25pm (EDT+4) (Leon) claims: Yes, glues are structural materials. snip structural adhesive and or glue. Many GM minivans used structural ahdhesives and glues to bond the body panels together. Might as well call nails structural material then, they hold wood together. However, I note you were saying "structural adhesive", which doesn't compute as "structural material", to me So, I did some looking. Came up with this: From Webster's Revised Unabridged Dictionary (1913) (web1913) Fastener \Fas"ten*er\, n. One who, or that which, makes fast or firm. This: From WordNet (r) 1.7 (wn) glue n : cement consisting of a sticky substance that is used as an adhesive And, this: From WordNet (r) 1.7 (wn) adhesive adj : tending to adhere [ant: {nonadhesive}] n : a substance that unites or bonds surfaces together And then I found this: http://www.adhesivesmag.com/CDA/Arti...122100,00.html Seems to me that structural bonding is the term, not structural material. I do accept glue, nails, rivets, whatever, as being part of a whole structural package, always have, always will, no prob. But, to call them structural material, I don't buy it. But, you come up with some legitimate proof(s) that says they are, and I might change my mind. Until then, I'll be saying fasteners, and structural bonding, my new term. LOL Making a success of the job at hand is the best step toward the kind you want. - Bernard M. Baruch More likely, your boss gets a raise and/or promotion, from getting credit for your work. - JOAT |
#80
![]() |
|||
|
|||
![]()
Well, that sounds like a good idea and I have exchanged 3 e-mails with him
today. I may be just short of being considered a heckeler from his view. LOL.. I do however think it would be great if perhaps you or some one else invite them to participate or at least check in with us once in a while. The more requests from different people that they get the more credible and perhaps worth while we will appear and the more likely their participation. If any one wants to contact Steve Craig at Titebond, Mr. Stone has been more than prompt with his replies. If he is not the one to participate, I am sure that he would know the person. wrote in message ... On Mon, 12 Jul 2004 17:33:08 GMT, "Leon" wrote: Check out the responses that I have received form Titebond regarding the tests. Look under Titebond response from headquarters posted this morning. Leon- thank you for taking the time to correspond with the folks at titebond. you might consider inviting the titebond rep to post directly to rec.woodworking. I have a couple of questions to ask and I'm sure others do as well. I think we're a big enough forum to warrant their attention.... |
Reply |
Thread Tools | Search this Thread |
Display Modes | |
|
|