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#1
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Fixing shellac orangepeel?
I used a spray gun attached to my air compressor (who knew? I thought
all that thing was good for was to blow sawdust out the garage door) to put 10 coats of 1# (approximately--Zinsser store-bought, you see) cut on a blanket chest I bought for my wife. I somehow or other managed to load up the finish in a couple of spots, and I'm feeling some apprehension about a few things. 1. Did I put on _too_much_ shellac? I passed the point at which the wood grain of the cedar was, um, still visible. What I mean to say is that viewed from a very oblique angle, the finish looks like poly, or epoxy, or whatever. Except, that is, for the orange peel. 2. If I can fix it, how do I do it? I realize that I can just rub it out with denatured alcohol until all of the shellac is off the wood, then start over. However, I would rather not do that. 2a. If I wet sand (presumably with 400 grit and mineral spirits) right through the finish, how hard is it to match the finish? There's no stain on the chest, it was raw cedar, so I don't have to worry about that. 3. Can I spray a coat or several of maybe 1/4# cut with the hope that all the alcohol will somehow flatten out the finish? 4. Will a few coats of wax fill in the small voids in the orange peeled finish? 5. Am I just screwed? What I was looking for, originally, was a dead flat, shiny finish for this blanket chest. I would hope that that's what I can still get from what I have. Is that a reasonable expectation for shellac? I'm sort of flying blind here, as I'm new to the whole shellac thing. -Phil Crow P.S. The damnable thing about polyurinestain is that it ain't very pretty, but at least it's predictable (to me, at least). |
#2
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In article .com,
wrote: 2. If I can fix it, how do I do it? I realize that I can just rub it out with denatured alcohol until all of the shellac is off the wood, Why don't you just try rubbing it with a pad dampened with DNA until it's smooth? Swat Eydoo. It's crazy enough that it could work... And then stop spraying the stuff. It's SO easy to pad it on. -- "The thing about saying the wrong words is that A, I don't notice it, and B, sometimes orange water gibbon bucket and plastic." -- Mr. Burrows |
#3
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wrote in message oups.com... I used a spray gun attached to my air compressor (who knew? I thought all that thing was good for was to blow sawdust out the garage door) to put 10 coats of 1# (approximately--Zinsser store-bought, you see) cut on a blanket chest I bought for my wife. I somehow or other managed to load up the finish in a couple of spots, and I'm feeling some apprehension about a few things. 1. Did I put on _too_much_ shellac? I passed the point at which the wood grain of the cedar was, um, still visible. What I mean to say is that viewed from a very oblique angle, the finish looks like poly, or epoxy, or whatever. Except, that is, for the orange peel. First off - orange peel only happens one way. Your first coat or two were too dry. It may be because of poor atomization of your gun, or it may be from poor technique. Bottom line - too dry. You end up with little bumps of material on the wood with lots of spaces between them. Next thing you do is put more coats on and it starts to fill in the spaces, but it also builds up on the bumps. As you build up coats, it flows together a bit and you end up with those gorgeous orange peel finishes. To prevent this, practice with your gun (read the directions that came with it and set it up properly). Learn to spread on a layer of finish rather than fog on coats. The delicate balance is in laying down a nice wet coat without getting runs. Practice makes perfect, but wet coats finish smoothly, dry coats don't. 2. If I can fix it, how do I do it? I realize that I can just rub it out with denatured alcohol until all of the shellac is off the wood, then start over. However, I would rather not do that. 2a. If I wet sand (presumably with 400 grit and mineral spirits) right through the finish, how hard is it to match the finish? There's no stain on the chest, it was raw cedar, so I don't have to worry about that. 400 is too coarse. Start with 1000 and moderate elbow grease. See how it goes. Don't rush it, keep sanding and use a sanding block to keep the sandpaper nice and flat to the surface. Try wrapping your sandpaper around a paint stirrer and use it. You should be able to knock down a lot of orange peel with 1000, but if it's not going down, then move down to maybe 800 or so. Be careful in how fast you move down in grit though or you'll burn through your finish. No need to do that. Sand it down until it's as flat as you want. You can get it all the way down to the low points (the craters) of the orange peel with no risk, but once you hit the bottom of the craters, you shouldn't push any further. Wet sanding helps keep the paper from clogging up so bad and makes the cutting more consistent. 3. Can I spray a coat or several of maybe 1/4# cut with the hope that all the alcohol will somehow flatten out the finish? Maybe - I really don't know how shellac reacts. Try it with one wet coat and see what it does. The worst that can happen is that you go the route of sanding it. 4. Will a few coats of wax fill in the small voids in the orange peeled finish? Bad approach. Get your finish where you want it and then add wax. 5. Am I just screwed? Nope. You're just not done yet. What I was looking for, originally, was a dead flat, shiny finish for this blanket chest. I would hope that that's what I can still get from what I have. Is that a reasonable expectation for shellac? I'm sort of flying blind here, as I'm new to the whole shellac thing. Dead flat huh? Well, then wrap that sandpaper around a paint stick and grab a small bucket of water and get sanding. Flatten it out nice and then rub it out with a rubbing compound to get it back to the level of shine you want. -- -Mike- |
#4
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My understanding is sand to level then spray for final coat OR start
rubbing the dull level sanded finish if the build is adequate. Shellac is like lacquer in new coats meld with previous into one contiguous finish. On Mon, 21 Feb 2005 23:40:40 -0500, "Mike Marlow" wrote: 3. Can I spray a coat or several of maybe 1/4# cut with the hope that all the alcohol will somehow flatten out the finish? Maybe - I really don't know how shellac reacts. Try it with one wet coat and see what it does. The worst that can happen is that you go the route of sanding it. |
#5
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"nospambob" wrote in message ... My understanding is sand to level then spray for final coat OR start rubbing the dull level sanded finish if the build is adequate. Shellac is like lacquer in new coats meld with previous into one contiguous finish. That's basically what I said in the other part of my comments that you snipped. I realize I made it a bit confusing by posting the comment below and then elaborating more later on, about how to deal with orange peel. My bad. -- -Mike- On Mon, 21 Feb 2005 23:40:40 -0500, "Mike Marlow" wrote: 3. Can I spray a coat or several of maybe 1/4# cut with the hope that all the alcohol will somehow flatten out the finish? Maybe - I really don't know how shellac reacts. Try it with one wet coat and see what it does. The worst that can happen is that you go the route of sanding it. |
#6
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On Mon, 21 Feb 2005 22:28:55 -0600, Dave Balderstone
wrote: In article .com, wrote: 2. If I can fix it, how do I do it? I realize that I can just rub it out with denatured alcohol until all of the shellac is off the wood, Why don't you just try rubbing it with a pad dampened with DNA until it's smooth? Swat Eydoo. It's crazy enough that it could work... And then stop spraying the stuff. It's SO easy to pad it on. Welllll..... I'm still trying to get it to pad on without ridges and streaks. I know I'm doing *something* wrong, but I haven't figured it out yet. Tim Douglass http://www.DouglassClan.com |
#7
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Wasn't chucking spears but trying to use different words for same end
result. On Tue, 22 Feb 2005 12:31:02 -0500, "Mike Marlow" wrote: "nospambob" wrote in message .. . My understanding is sand to level then spray for final coat OR start rubbing the dull level sanded finish if the build is adequate. Shellac is like lacquer in new coats meld with previous into one contiguous finish. That's basically what I said in the other part of my comments that you snipped. I realize I made it a bit confusing by posting the comment below and then elaborating more later on, about how to deal with orange peel. My bad. |
#8
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In article , Tim Douglass
wrote: Welllll..... I'm still trying to get it to pad on without ridges and streaks. I know I'm doing *something* wrong, but I haven't figured it out yet. How heavy a cut are you using? -- "The thing about saying the wrong words is that A, I don't notice it, and B, sometimes orange water gibbon bucket and plastic." -- Mr. Burrows |
#9
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On Tue, 22 Feb 2005 17:35:56 -0600, Dave Balderstone
wrote: In article , Tim Douglass wrote: Welllll..... I'm still trying to get it to pad on without ridges and streaks. I know I'm doing *something* wrong, but I haven't figured it out yet. How heavy a cut are you using? About 1 1/2, it is Zinser (sp?) 3 lb cut about 50%. I try to wipe a very thin coat, but I get too much drag unless the pad is wet, rather than damp. At that point it is laying down a layer that is thick enough to show the marks of the pad. I'm going to try thinning it to less than 1lb tonight to try to get this thing finished. If I want to sand to get a smooth surface before this (hopefully) last coat, some have suggested wet sanding with mineral oil, others with water(?), others let it dry thoroughly and dry sand. Any thoughts? Tim Douglass http://www.DouglassClan.com |
#10
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In article , Tim Douglass
wrote: About 1 1/2, it is Zinser (sp?) 3 lb cut about 50%. I try to wipe a very thin coat, but I get too much drag unless the pad is wet, rather than damp. At that point it is laying down a layer that is thick enough to show the marks of the pad. I'm going to try thinning it to less than 1lb tonight to try to get this thing finished. If I want to sand to get a smooth surface before this (hopefully) last coat, some have suggested wet sanding with mineral oil, others with water(?), others let it dry thoroughly and dry sand. Any thoughts? I'm no expert... I've just finished my first padding a few weeks ago. I used about a 1.5 lb cut of the Lee Valley orange flakes mixed with denatured ethanol, and kept the pad wet rather than damp. Wet, wet, wet. For sanding, I used a 3M 180 grit foam pad very, very, very lightly after about every 3 or 4 coats had cured for several hours to overnight. I don't know what the Zinser is like. My mix was fairly fresh (about 4 months old, but stored in the dark in my (cool temp) basement shop. Hopefully someone who knows more than I do will jump in about now. djb -- "The thing about saying the wrong words is that A, I don't notice it, and B, sometimes orange water gibbon bucket and plastic." -- Mr. Burrows |
#11
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Mike Marlow wrote: wrote in message oups.com... I used a spray gun attached to my air compressor (who knew? I thought all that thing was good for was to blow sawdust out the garage door) to put 10 coats of 1# (approximately--Zinsser store-bought, you see) cut on a blanket chest I bought for my wife. I somehow or other managed to load up the finish in a couple of spots, and I'm feeling some apprehension about a few things. 1. Did I put on _too_much_ shellac? I passed the point at which the wood grain of the cedar was, um, still visible. What I mean to say is that viewed from a very oblique angle, the finish looks like poly, or epoxy, or whatever. Except, that is, for the orange peel. First off - orange peel only happens one way. Your first coat or two were too dry. It may be because of poor atomization of your gun, or it may be from poor technique. Bottom line - too dry. You end up with little bumps of material on the wood with lots of spaces between them. Next thing you do is put more coats on and it starts to fill in the spaces, but it also builds up on the bumps. As you build up coats, it flows together a bit and you end up with those gorgeous orange peel finishes. To prevent this, practice with your gun (read the directions that came with it and set it up properly). Learn to spread on a layer of finish rather than fog on coats. The delicate balance is in laying down a nice wet coat without getting runs. Practice makes perfect, but wet coats finish smoothly, dry coats don't. As a spraying newbie, how do I know how wet is too wet? My guess is to cut the spit out of the shellac and spray it on so thick it _almost_ runs, but if I knew what I was talking about, I wouldn't be here right now, would I? 2. If I can fix it, how do I do it? I realize that I can just rub it out with denatured alcohol until all of the shellac is off the wood, then start over. However, I would rather not do that. 2a. If I wet sand (presumably with 400 grit and mineral spirits) right through the finish, how hard is it to match the finish? There's no stain on the chest, it was raw cedar, so I don't have to worry about that. 400 is too coarse. Start with 1000 and moderate elbow grease. See how it goes. Don't rush it, keep sanding and use a sanding block to keep the sandpaper nice and flat to the surface. Try wrapping your sandpaper around a paint stirrer and use it. You should be able to knock down a lot of orange peel with 1000, but if it's not going down, then move down to maybe 800 or so. Be careful in how fast you move down in grit though or you'll burn through your finish. No need to do that. Sand it down until it's as flat as you want. You can get it all the way down to the low points (the craters) of the orange peel with no risk, but once you hit the bottom of the craters, you shouldn't push any further. Wet sanding helps keep the paper from clogging up so bad and makes the cutting more consistent. I'm assuming water is the appropriate solvent for wet sanding, based on your comments, or is mineral spirits a better wet sanding medium? The reason I ask is that, from my very limited shellac knowledge, water is like, well, water. You know, grain raising, not playing well with other finishes, etc. 3. Can I spray a coat or several of maybe 1/4# cut with the hope that all the alcohol will somehow flatten out the finish? Maybe - I really don't know how shellac reacts. Try it with one wet coat and see what it does. The worst that can happen is that you go the route of sanding it. 4. Will a few coats of wax fill in the small voids in the orange peeled finish? Bad approach. Get your finish where you want it and then add wax. 5. Am I just screwed? Nope. You're just not done yet. What I was looking for, originally, was a dead flat, shiny finish for this blanket chest. I would hope that that's what I can still get from what I have. Is that a reasonable expectation for shellac? I'm sort of flying blind here, as I'm new to the whole shellac thing. Dead flat huh? Well, then wrap that sandpaper around a paint stick and grab a small bucket of water and get sanding. Flatten it out nice and then rub it out with a rubbing compound to get it back to the level of shine you want. Rubbing compound? Would that be the same rubbing compound I would use on my car? Or is there a WW compound that works better or faster or whatever? Regarding dead flat, is that what folks are looking for (sometimes) when they decide to use shellac? In the future, would lacquer maybe be a better idea for a flat finish? Not knowing the difference, and having some shellac and a spray gun (a truly dangerous combination indeed!) I figured I'd give it a try. -- -Mike- Thanks, Mike, for all the help. I sure appreciate it. -Phil Crow |
#12
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wrote in message oups.com... Hey Phil - I'll preceed everything I have to say by saying that I don't finish with shelac so my comments are strictly related to spray painting techniques and practices. Others can augment what I have to say by bringing shelac specific knowledge to the conversation. A lot of these things are universal, so the discussion is meaningful. As a spraying newbie, how do I know how wet is too wet? My guess is to cut the spit out of the shellac and spray it on so thick it _almost_ runs, but if I knew what I was talking about, I wouldn't be here right now, would I? This would be a universal question. You are right in that a good wet coat is on the verge of wanting to sag or run. But... it won't because you didn't put it on that heavy. Nice and even. Think of it as spreading plastic wrap over your workpiece. You want to envision yourself doing exactly that with your spray gun. It will take practice to develop the ability, but the key is to be able to watch your spray going on. You can't do this stuff by feel until you've spray painted for a good long time. Even then, because of an infinate number of variables like humidity, temperature, etc. you will find that you have to always watch the spray pattern going on the workpiece. This means good lighting. Don't take a shortcut on the lighting. No shadows, no glare, good well lit work area. Make sure each pass just overlaps the previous pass and it creates a growing wet surface without overlapping too much and creating an area that is too wet and sags, or that is too far apart and creates a dry line. The edges of your spray pattern out of your gun are dryer than the cigar shaped center of the spray pattern. This works to your advantage. The top of your first pass will be a little dryer than the center of it, but when you overlap slightly on the second pass - with a slightly dryer bottom to the pattern than it's center, the overlapped area ends up receiving essentially the same amount of paint as the center of the spray pattern. Am I making sense? You should be able to watch your "plastic wrap" grow as you make your passes up the workpiece. Nice and even in wetness and texture. No dry spots and no heavy spots. Study your owners manual for your gun. It will give you valuable information on tip sizes for various viscosity materials. Live by that information until you develop spraying skills. Practice on scraps. Lay some down flat and experiment. Your owners manual will tell you about setting up your gun. You'll need to adjust the spray pattern for a nice cigar shaped fan and you'll need to set your needle for proper atomization. The later is very interactive and dependent upon the pressure setting. Hold your gun about 6" from a vertical piece of scrap and as quickly as possible, just pull the trigger all the way and immediately let off. You should typically have a pattern that is about 8-10" high and maybe 3" wide. The pattern should be a vertical eliptical shape - or cigar shaped, nicely rounded and defined - not a blob. The edges should fade out to nothing. You should not have an evenly wet cigar. The fade is rather abrupt - not a gentle fade. So - you have a nice wet center that is maybe 7-9" high and 2 inches wide and it fades a half inch or so on each side. Depending on your gun you may not be able to hit those dimensions, but you get the jist. Practice by pulling the trigger all the way and developing the speed that is right for making a nice wet, shiney spray pattern across the scrap. Make a few passes - overlapping each other to achieve an nice even coverage. That's your first focus point. Always pull full on the trigger and use speed to regulate your coverage as you move across the piece. There are times when you will fog with less than a full trigger pull, but this requires a careful eye to fog and watch build up until it hits the right level. Not for the intial practice. Concentrate on developing a body rhythm. After you get a feel for this - and it will take you a few scraps of wood, move on to trying the same thing on a vertical piece of wood. You'll find - as you probably assume, that you have to speed up a bit because the vertical piece will sag quickly with the same amount of material as the horizontal piece accepted. Just keep thinking about stretching plastic wrap and watch the material go on the workpiece. It may not seem worth it all and in fact for some pieces, it probably is not worth spraying. There's cleanup and all that stuff to contend with when you spray. But... for other pieces, you just cannot beat a sprayed finish. When you want it, you need to know how to do it. I'm assuming water is the appropriate solvent for wet sanding, based on your comments, or is mineral spirits a better wet sanding medium? The reason I ask is that, from my very limited shellac knowledge, water is like, well, water. You know, grain raising, not playing well with other finishes, etc. I tend to use the term water when referring to wet sanding out of habit. Others like to use mineral spirits and for woodworking I'm sure it's fine. I would not worry about raising grain, as that becomes less of an issue as buildup happens. Once you seal the wood well you should not have a problem with raised grain. If you prefer mineral spirits though, it should work just as well. Forget the stuff about mineral spirits lubricating better than water, as I've read here. There's not a lubrication issue in wet sanding. The liquid does help cutting as it keeps the paper from clogging, but water will do this every bit as good as anything else. Most wet sanding is done by hand and there just isn't going to be a friction issue in that case, and even wet sanding with a DA or a ROS (not sure what a fan I would be of that), if done properly - slowly, will not create friction issues if done with just water. So - pick your poison. Either one will work. Again - with respect to shelac, others may have some input relative to it that I would have to defer to. Rubbing compound? Would that be the same rubbing compound I would use on my car? Or is there a WW compound that works better or faster or whatever? Regarding dead flat, is that what folks are looking for (sometimes) when they decide to use shellac? In the future, would lacquer maybe be a better idea for a flat finish? Not knowing the difference, and having some shellac and a spray gun (a truly dangerous combination indeed!) I figured I'd give it a try. Yes - you can use the same rubbing compound that one would use on a car. I have lots of it around here, so that's what I use. Others use compounds and materials that I'm not familiar with and they seem to like the results. They'd have to offer their comments on this practice - I'm just not familiar with anything besides good old 3M rubbing compound. Shellac and lacquer give two different finishes. Again - I'm not well versed in the use of shellac so the other guys can chime in, but as I understand it, shellac does not really seal - it more fills. As I understand it you typically overcoat shellac with a sealer of some sort. Lacquer is a sealer. It fills by build up in a way similar to what shellac does, but it also seals. For dead flat I would probably go with just lacquer as long as the look of lacquer is what I was after. I wouldn't bother using anything else to fill the grain since the lacquer is fully capable of doing that and subsequent coats will provide the buildup. I'd lay it on as smoothly as I could and then I'd either wet sand it with 1000 or 1500 and buff it out, or if I sprayed a nice smooth coat I'd skip the wet sanding. All that said - that's only to answer your specific question about shellac vs. lacquer. Then there's oils, etc. We won't go there for now... I just got done spraying a '52 Dodge over the weekend. Some of the panels came out like glass and I'm just going to bolt them back on the car. Some panels orange peeled a bit due to some problems I had with my gun. I'll knock those down a bit with 1000 and then buff them out. There's just no absolute rules. Sometimes it all just comes together and the dust gods aren't paying attention to you and you end up with a really nice, ready to go finish. Sometimes it just don't work that way. Other times you want the protection of a particular finish - for example, lacquer, but you really don't want a high gloss plastic look. So - you knock it down with steel wool to flatten it back. There's just a ton of options. Hope this helped. -- -Mike- |
#13
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Have seen suggested lightly sand off ridges using a flat block backing
for sandpaper and when build is adequate lightly sand for uniform dullnes with no glossy spots then apply a thin coat that will level well, let cure then start rubbing for sheen wanted. Menzerna polishing compounds available from www.homesteadfinishing.com are awsome. On Tue, 22 Feb 2005 11:42:49 -0800, Tim Douglass wrote: On Mon, 21 Feb 2005 22:28:55 -0600, Dave Balderstone wrote: In article .com, wrote: 2. If I can fix it, how do I do it? I realize that I can just rub it out with denatured alcohol until all of the shellac is off the wood, Why don't you just try rubbing it with a pad dampened with DNA until it's smooth? Swat Eydoo. It's crazy enough that it could work... And then stop spraying the stuff. It's SO easy to pad it on. Welllll..... I'm still trying to get it to pad on without ridges and streaks. I know I'm doing *something* wrong, but I haven't figured it out yet. Tim Douglass http://www.DouglassClan.com |
#14
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On Tue, 22 Feb 2005 19:40:35 -0600, Dave Balderstone
wrote: In article , Tim Douglass wrote: About 1 1/2, it is Zinser (sp?) 3 lb cut about 50%. I try to wipe a very thin coat, but I get too much drag unless the pad is wet, rather than damp. [...snip...] Hopefully someone who knows more than I do will jump in about now. djb I'm not an expert, but I can do a search on Google Groups. Here are directions from "Paddy Odeen" about how to do this. He posts on rec.woodworking about shellac issues now and again: === Cut your shellac to #1.5. This should be plenty thin for wiping, which is what I always recommend for beginners. Heck, it's what I recommend for everyone. Yes, you can brush shellac. Yes, beginners can brush shellac. Yes, beginners almost always have a spazz when attempting to brush shellac, especially thick cuts. Don't ask me how I know this. Take an old sock; wool or cotton will work. Get a piece of an old pillow case or table cloth and wad it around the sock, pulling it tight so there are no wrinkles on one side. Dip it in a bowl of your #1.5 cut of spiffy shellac. Squeeze it out until it's just damp. You're wearing vinyl gloves, aren't you? Good. Now wipe the pad on the scrap. Take s short break. Count some nose hairs in the back of a finely polished chisel blade. Then wipe some more. Repeat. When the pad begins to streak, do the dip-and-squeeze trick in your bowl of shellac. When the pad begins to stick to the workpiece, use a couple drops of mineral or raw linseed oil on the outside of the pad to lube it. When the shellac is dry, the oil will clean off with mineral spirits. Let the shellac dry a couple days, come back, and mebbe one of these geniuses will tell ya how to rub it out to a glassy or satiny sheen... whichever is yer fancy. If we can't locate a polishing genius, we'll then I'll be back. Best of luck. Hope this helped. Paddy |
#15
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In article , Jim Weisgram
wrote: I'm not an expert, but I can do a search on Google Groups. ROFL! Paddy posted a link to a short vid demonstrating his technique a cupla weeks back. -- "The thing about saying the wrong words is that A, I don't notice it, and B, sometimes orange water gibbon bucket and plastic." -- Mr. Burrows |
#16
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On Sat, 26 Feb 2005 17:22:00 GMT, Jim Weisgram
wrote: On Tue, 22 Feb 2005 19:40:35 -0600, Dave Balderstone wrote: In article , Tim Douglass wrote: About 1 1/2, it is Zinser (sp?) 3 lb cut about 50%. I try to wipe a very thin coat, but I get too much drag unless the pad is wet, rather than damp. [...snip...] Hopefully someone who knows more than I do will jump in about now. djb I'm not an expert, but I can do a search on Google Groups. Here are directions from "Paddy Odeen" about how to do this. He posts on rec.woodworking about shellac issues now and again: Yep. That's exactly the instructions I am trying to follow and it isn't working out too well. I've been messing around with shellac on a couple of projects now and really love the color and such, but I simply *cannot* seem to get anything approaching a smooth surface. I'm about to give up and just slap on some poly to get this project finished. I've been trying to get a decent finish on it for 3 weeks now and it still looks lousy. Tim Douglass http://www.DouglassClan.com |
#17
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On Sat, 26 Feb 2005 12:01:55 -0600, Dave Balderstone
wrote: In article , Jim Weisgram wrote: I'm not an expert, but I can do a search on Google Groups. ROFL! Paddy posted a link to a short vid demonstrating his technique a cupla weeks back. Hmm. I missed that. I'll have to try and find it to see if I can figure out what is going on. Tim Douglass http://www.DouglassClan.com |
#18
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On Sat, 26 Feb 2005 12:01:55 -0600, Dave Balderstone
wrote: In article , Jim Weisgram wrote: I'm not an expert, but I can do a search on Google Groups. ROFL! Paddy posted a link to a short vid demonstrating his technique a cupla weeks back. Is this the one: http://www.klownhammer.org/movies/wiping.mov That looks exactly like what I'm doing, but I end up with all this little ridges in the finish so it doesn't have that smooth, level, shiny look. I just set about wet sanding it all back down flat and will try one more time. This is starting to **** me off... Tim Douglass http://www.DouglassClan.com |
#19
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In article , Tim Douglass
wrote: Is this the one: http://www.klownhammer.org/movies/wiping.mov That looks exactly like what I'm doing, but I end up with all this little ridges in the finish so it doesn't have that smooth, level, shiny look. I just set about wet sanding it all back down flat and will try one more time. This is starting to **** me off... That's the one. I can appreciate how frustrated you must be, but if you do what Paddy does you shouldn't have any problems. I'm a total newbie when it comes to fine finishing of anything, but when I padded shellac on my most recent project is was a dream come true. I folded the pad, wet it with ethyl, then squirted the shellac from a (for lac g of a better word) mustard squirt bottle and wiped away. After a number of coats I let it sit for 24 hours, barely touched it with a 180 grit 3M pad, then padded again. That simple. I'll take some pix of the current project and post them to abpw, and I can set the camera up and film it if it would help... -- "The thing about saying the wrong words is that A, I don't notice it, and B, sometimes orange water gibbon bucket and plastic." -- Mr. Burrows |
#20
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Tim Douglass wrote:
simply *cannot* seem to get anything approaching a smooth surface. I'm about to give up and just slap on some poly to get this project finished. I've been trying to get a decent finish on it for 3 weeks now and it still looks lousy. Could always just use a brush. Works for me. Brush and sand, repeat about 10 times and enjoy. The results are fantastic, and I can't see how a French polish could be any more luxurious to behold. Faster way to get there, arguably that could well be true, but I'll go head to head against anybody on the final results. Shellac is very forgiving, and you can take as long as you need to get it where you want to be. -- Michael McIntyre ---- Silvan Linux fanatic, and certified Geek; registered Linux user #243621 http://www.geocities.com/Paris/Rue/5407/ http://rosegarden.sourceforge.net/tutorial/ |
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On Sat, 26 Feb 2005 17:49:00 -0600, Dave Balderstone
wrote: In article , Tim Douglass wrote: Is this the one: http://www.klownhammer.org/movies/wiping.mov That looks exactly like what I'm doing, but I end up with all this little ridges in the finish so it doesn't have that smooth, level, shiny look. I just set about wet sanding it all back down flat and will try one more time. This is starting to **** me off... That's the one. I can appreciate how frustrated you must be, but if you do what Paddy does you shouldn't have any problems. I sanded the bad parts down and it is actually looking better. I can't seem to get it perfectly smooth, but it is probably good enough for what I'm doing. I think I may be using too much pressure, because the parts I wiped real lightly seem to look pretty good, but the parts that I was rubbing it on sort of hard are where the problems are. I'm a total newbie when it comes to fine finishing of anything, but when I padded shellac on my most recent project is was a dream come true. I folded the pad, wet it with ethyl, then squirted the shellac from a (for lac g of a better word) mustard squirt bottle and wiped away. After a number of coats I let it sit for 24 hours, barely touched it with a 180 grit 3M pad, then padded again. That simple. I'll take some pix of the current project and post them to abpw, and I can set the camera up and film it if it would help... I think it is going to work this time, but I appreciate the offer. A bit more oil seems to be a part of the solution as well. Either way I'm going to finish this thing up start of the week. Tim Douglass http://www.DouglassClan.com |
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On Sat, 26 Feb 2005 20:44:24 -0500, Silvan
wrote: Tim Douglass wrote: simply *cannot* seem to get anything approaching a smooth surface. I'm about to give up and just slap on some poly to get this project finished. I've been trying to get a decent finish on it for 3 weeks now and it still looks lousy. Could always just use a brush. Works for me. Brush and sand, repeat about 10 times and enjoy. The results are fantastic, and I can't see how a French polish could be any more luxurious to behold. Faster way to get there, arguably that could well be true, but I'll go head to head against anybody on the final results. Shellac is very forgiving, and you can take as long as you need to get it where you want to be. My last attempt with shellac was with a brush - that disaster made this one look pretty good. It still hasn't really been fixed, but it looks fine from a couple feet away and anyone who looks closer is going to deserve to see what they see. The whole plan with padding was that it was supposed to eliminate the brush marks so I wouldn't have to sand all the time. No brush marks, but I have a lot of pad marks, which are shallower and easier to sand out... Tim Douglass http://www.DouglassClan.com |
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looks fine from a couple feet away and anyone who looks closer is going to deserve to see what they see. The whole plan with padding was that it was supposed to eliminate the brush marks so I wouldn't have to sand all the time. No brush marks, but I have a lot of pad marks, which are shallower and easier to sand out... I'm a novice with shellac, but the few times I have tried it I've used a cheap brush with some Zinser #3 orange right out of the can. Never had a problem with brush marks. The only uneven-ness I've seen was on an antique oak top desk where the grain of the wood stood out. This leads me to wonder if maybe you have some shellac that has gone bad? -sam |
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Tim Douglass wrote:
My last attempt with shellac was with a brush - that disaster made this one look pretty good. It still hasn't really been fixed, but it looks fine from a couple feet away and anyone who looks closer is going to deserve to see what they see. The whole plan with padding was that it was supposed to eliminate the brush marks so I wouldn't have to sand all the time. No brush marks, but I have a lot of pad marks, which are shallower and easier to sand out... When applying shellac I apply 3-5 coats and then lightly block sand to level the surface using either 220 or 400 grit (depending on how bad I screwed up). I'll then apply additional coats leveling the surface by block sanding at approx. every third coat. After applying the final coat I use a felt block to rub out the finish with "FF" pumice and mineral oil followed by "FFFF" pumice. If a higher sheen is desired I'll continue using rubbing the finish out rottenstone. -- Jack Novak Buffalo, NY - USA (Remove "SPAM" from email address to reply) |
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Tim Douglass wrote in
: On Sat, 26 Feb 2005 17:49:00 -0600, Dave Balderstone wrote: In article , Tim Douglass wrote: Is this the one: http://www.klownhammer.org/movies/wiping.mov That looks exactly like what I'm doing, but I end up with all this little ridges in the finish so it doesn't have that smooth, level, shiny look. I just set about wet sanding it all back down flat and will try one more time. This is starting to **** me off... That's the one. I can appreciate how frustrated you must be, but if you do what Paddy does you shouldn't have any problems. I sanded the bad parts down and it is actually looking better. I can't seem to get it perfectly smooth, but it is probably good enough for what I'm doing. I think I may be using too much pressure, because the parts I wiped real lightly seem to look pretty good, but the parts that I was rubbing it on sort of hard are where the problems are. I'm a total newbie when it comes to fine finishing of anything, but when I padded shellac on my most recent project is was a dream come true. I folded the pad, wet it with ethyl, then squirted the shellac from a (for lac g of a better word) mustard squirt bottle and wiped away. After a number of coats I let it sit for 24 hours, barely touched it with a 180 grit 3M pad, then padded again. That simple. I'll take some pix of the current project and post them to abpw, and I can set the camera up and film it if it would help... I think it is going to work this time, but I appreciate the offer. A bit more oil seems to be a part of the solution as well. Either way I'm going to finish this thing up start of the week. Tim Douglass http://www.DouglassClan.com I'm getting here late, Tim, but I've been where you seem to be, with the shellac thing. Things I've found: * About a 1.5 to 2 lb cut seems to work best for me. Heavier = bad. Lighter, I haven't learned to control it well, except for early coats. * I make sure _not_ to drip anything on the surface, if I can help it. * Fiddling with the surface, or 'brushing back', such as I would do to get an even surface with an enamel paint, is a bad thing. * Once the surface starts to 'tack', I have to leave it alone, no matter what my inner child is screaming. Patience is not hereditary in my gene pool, evidently. * this last bit is more important with objects which are small, and, by their nature, invite handling and close inspection. The inside surfaces of a shop cabinet are a different story. As is a workbench which will actually see work. * Most importantly, 'sanding' should be most properly described as 'leveling', at least in my lexicon. 400-600 grit works best for me, the goal being to identify where the problems might be. Good luck. Take and post pictures. Patriarch |
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Once the build is thick enough sand level with a smooth backing board.
Then pad a thin coat. Let cure then start rubbing out for sheen wanted. Careful at edges where shellac has pulled away leaving a thinner coat. On Sat, 26 Feb 2005 11:37:21 -0800, Tim Douglass wrote: On Sat, 26 Feb 2005 17:22:00 GMT, Jim Weisgram wrote: On Tue, 22 Feb 2005 19:40:35 -0600, Dave Balderstone wrote: In article , Tim Douglass wrote: About 1 1/2, it is Zinser (sp?) 3 lb cut about 50%. I try to wipe a very thin coat, but I get too much drag unless the pad is wet, rather than damp. [...snip...] Hopefully someone who knows more than I do will jump in about now. djb I'm not an expert, but I can do a search on Google Groups. Here are directions from "Paddy Odeen" about how to do this. He posts on rec.woodworking about shellac issues now and again: Yep. That's exactly the instructions I am trying to follow and it isn't working out too well. I've been messing around with shellac on a couple of projects now and really love the color and such, but I simply *cannot* seem to get anything approaching a smooth surface. I'm about to give up and just slap on some poly to get this project finished. I've been trying to get a decent finish on it for 3 weeks now and it still looks lousy. Tim Douglass http://www.DouglassClan.com |
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On Sun, 27 Feb 2005 10:39:28 -0600, Patriarch
wrote: I'm getting here late, Tim, but I've been where you seem to be, with the shellac thing. Things I've found: * About a 1.5 to 2 lb cut seems to work best for me. Heavier = bad. Lighter, I haven't learned to control it well, except for early coats. I'm OK there. By my figuring I'm using a 1 1/2 lb cut. * I make sure _not_ to drip anything on the surface, if I can help it. I learned that finally. * Fiddling with the surface, or 'brushing back', such as I would do to get an even surface with an enamel paint, is a bad thing. This seems to be a big thing. It seems like I pretty much get one whack at it and then need to leave it alone. * Once the surface starts to 'tack', I have to leave it alone, no matter what my inner child is screaming. Patience is not hereditary in my gene pool, evidently. I have that patience problem myself. * this last bit is more important with objects which are small, and, by their nature, invite handling and close inspection. The inside surfaces of a shop cabinet are a different story. As is a workbench which will actually see work. * Most importantly, 'sanding' should be most properly described as 'leveling', at least in my lexicon. 400-600 grit works best for me, the goal being to identify where the problems might be. Leveling seems to be what is needed. I have gathered from people in here that you pretty much can expect to have to sand/polish to get that perfectly flat surface. I am more conditioned to varnishes where you can brush them on and they will level while they dry. Shellac definitely doesn't do that. Good luck. Take and post pictures. Depending on how it comes out the pictures may be from close or far away. Tim Douglass http://www.DouglassClan.com |
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On Sun, 27 Feb 2005 10:31:11 -0500, Nova
wrote: Tim Douglass wrote: My last attempt with shellac was with a brush - that disaster made this one look pretty good. It still hasn't really been fixed, but it looks fine from a couple feet away and anyone who looks closer is going to deserve to see what they see. The whole plan with padding was that it was supposed to eliminate the brush marks so I wouldn't have to sand all the time. No brush marks, but I have a lot of pad marks, which are shallower and easier to sand out... When applying shellac I apply 3-5 coats and then lightly block sand to level the surface using either 220 or 400 grit (depending on how bad I screwed up). I'll then apply additional coats leveling the surface by block sanding at approx. every third coat. After applying the final coat I use a felt block to rub out the finish with "FF" pumice and mineral oil followed by "FFFF" pumice. If a higher sheen is desired I'll continue using rubbing the finish out rottenstone. I think this is my problem. I'm expecting the wiped surface to be smooth and shiny when you actually have to sand and polish to get that look. Where do you find felt blocks for rubbing out. I'm sure they're available, but I don't consciously recall seeing them for sale either in a store or catalog. Tim Douglass http://www.DouglassClan.com |
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Tim Douglass wrote:
Where do you find felt blocks for rubbing out. I'm sure they're available, but I don't consciously recall seeing them for sale either in a store or catalog. The last one was purchase at Rockler: http://www.rockler.com/ecom7/product...erings_id=2184 -- Jack Novak Buffalo, NY - USA (Remove "SPAM" from email address to reply) |
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Tim Douglass wrote in
: snip The shellac I bought most recently included a quart of Jeff Jewitt's liquid 5 lb cut, extra pale, German refined product. Not only is it excellent bug spit, it goes from shipped product to ready-to-pad in about as long as it takes to measure the two liquids and shake. Highly recommended. I'm going to try some dipping for a toys-for-kids project the woodworking club is getting ready to run. There are some neat designs for early years projects that can be done in short production run processes. The sort of batch processes that a woodworker can do between dinner and the late news. If the simple finishing process can be dye stain by dipping, dry, and shellac coating by dipping and drying, that would keep it simple and 'food safe'. Otherwise, Critter-spraying. Love these projects! Patriarch |
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Do yourself a favor and try the Menzerna polishing stuff. I got some
from www.homesteadfinishing.com and now the pumice and rottenstone sit on the shelf waiting to be tossed. On Sun, 27 Feb 2005 17:24:19 -0800, Tim Douglass wrote: On Sun, 27 Feb 2005 10:31:11 -0500, Nova wrote: Tim Douglass wrote: My last attempt with shellac was with a brush - that disaster made this one look pretty good. It still hasn't really been fixed, but it looks fine from a couple feet away and anyone who looks closer is going to deserve to see what they see. The whole plan with padding was that it was supposed to eliminate the brush marks so I wouldn't have to sand all the time. No brush marks, but I have a lot of pad marks, which are shallower and easier to sand out... When applying shellac I apply 3-5 coats and then lightly block sand to level the surface using either 220 or 400 grit (depending on how bad I screwed up). I'll then apply additional coats leveling the surface by block sanding at approx. every third coat. After applying the final coat I use a felt block to rub out the finish with "FF" pumice and mineral oil followed by "FFFF" pumice. If a higher sheen is desired I'll continue using rubbing the finish out rottenstone. I think this is my problem. I'm expecting the wiped surface to be smooth and shiny when you actually have to sand and polish to get that look. Where do you find felt blocks for rubbing out. I'm sure they're available, but I don't consciously recall seeing them for sale either in a store or catalog. Tim Douglass http://www.DouglassClan.com |
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Mike Marlow wrote: Snippage of GOOD HELP Hope this helped. -- -Mike- It sure did. I had an emergency side job to do, so I didn't even touch the blanket chest until last night. Just like you said, wet sand with 1k grit, rather vigorous rub-down with burlap (I didn't have any compound) and 2 coats of wax. The top looks like a freakin mirror. Admittedly, it looks a little plastic, but I'm so proud of being able to make it look that way, I think I'll leave it. Armed with my new spraygun knowledge, I plan to do some sprayin' on some scrap soon to improve my technique. To quote the old adage, "How do you get to your own show on PBS?" "Practice." Anyhow, thanks a blanket chest full, Mike. -Phil Crow |
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wrote in message oups.com... Mike Marlow wrote: Snippage of GOOD HELP Hope this helped. -- -Mike- It sure did. I had an emergency side job to do, so I didn't even touch the blanket chest until last night. Just like you said, wet sand with 1k grit, rather vigorous rub-down with burlap (I didn't have any compound) and 2 coats of wax. The top looks like a freakin mirror. Admittedly, it looks a little plastic, but I'm so proud of being able to make it look that way, I think I'll leave it. Armed with my new spraygun knowledge, I plan to do some sprayin' on some scrap soon to improve my technique. To quote the old adage, "How do you get to your own show on PBS?" "Practice." Anyhow, thanks a blanket chest full, Mike. I love it when a plan comes together. Great job Phil. -- -Mike- |
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