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Vaseline on coax connection?
Is it a good idea to put Vaseline on a coax connection, or will it
damage the thread? thanks. |
Vaseline on coax connection?
"lbbss" wrote in message ... Is it a good idea to put Vaseline on a coax connection, or will it damage the thread? thanks. It won't damage anything, but it might be kinda messy. Is this connection outdoors? |
Vaseline on coax connection?
On Mar 13, 7:31*pm, "James Sweet" wrote:
"lbbss" wrote in message news:845c441c-0e47-4482-97bb- ... Is it a good idea to put Vaseline on a coax connection, or will it damage the thread? *thanks. It won't damage anything, but it might be kinda messy. Is this connection outdoors? I much prefer clear silicone grease like GC 10-8101. I've opened up outdoor 'F' connectors after 15 years and still looking like new. The antenna got mangled by the roofers but the connections were fine. GG |
Vaseline on coax connection?
On Mar 13, 10:31 pm, "James Sweet" wrote:
"lbbss" wrote in message ... Is it a good idea to put Vaseline on a coax connection, or will it damage the thread? thanks. It won't damage anything, but it might be kinda messy. Is this connection outdoors? no its a indoor connection, but I have lots of them. |
Vaseline on coax connection?
"lbbss" wrote in message ... On Mar 13, 10:31 pm, "James Sweet" wrote: "lbbss" wrote in message ... Is it a good idea to put Vaseline on a coax connection, or will it damage the thread? thanks. It won't damage anything, but it might be kinda messy. Is this connection outdoors? no its a indoor connection, but I have lots of them. If it is a perminanent connection I don't see where it will be a problem. Like someone else said silicone might be better, but I can't see why vaseline won't work. Usually indoor connections don't suffer from the corrison problems that outdoor ones do, unless say you live on the beach and leave your windows open all the time. Mike |
Vaseline on coax connection?
"Michael Kennedy" wrote in message ... "lbbss" wrote in message ... On Mar 13, 10:31 pm, "James Sweet" wrote: "lbbss" wrote in message ... Is it a good idea to put Vaseline on a coax connection, or will it damage the thread? thanks. It won't damage anything, but it might be kinda messy. Is this connection outdoors? no its a indoor connection, but I have lots of them. If it is a perminanent connection I don't see where it will be a problem. Like someone else said silicone might be better, but I can't see why vaseline won't work. Usually indoor connections don't suffer from the corrison problems that outdoor ones do, unless say you live on the beach and leave your windows open all the time. Mike Oh to clarify I meant silicone grease.. Not RTV silicone sealant |
Vaseline on coax connection?
In message , Michael
Kennedy writes "Michael Kennedy" wrote in message ... "lbbss" wrote in message ... On Mar 13, 10:31 pm, "James Sweet" wrote: "lbbss" wrote in message ... Is it a good idea to put Vaseline on a coax connection, or will it damage the thread? thanks. It won't damage anything, but it might be kinda messy. Is this connection outdoors? no its a indoor connection, but I have lots of them. If it is a perminanent connection I don't see where it will be a problem. Like someone else said silicone might be better, but I can't see why vaseline won't work. Usually indoor connections don't suffer from the corrison problems that outdoor ones do, unless say you live on the beach and leave your windows open all the time. Mike Oh to clarify I meant silicone grease.. Not RTV silicone sealant WD40's OK too. -- Ian |
Vaseline on coax connection?
"Ian Jackson" wrote in message ... In message , Michael Kennedy writes "Michael Kennedy" wrote in message ... "lbbss" wrote in message ... On Mar 13, 10:31 pm, "James Sweet" wrote: "lbbss" wrote in message ... Is it a good idea to put Vaseline on a coax connection, or will it damage the thread? thanks. It won't damage anything, but it might be kinda messy. Is this connection outdoors? no its a indoor connection, but I have lots of them. If it is a perminanent connection I don't see where it will be a problem. Like someone else said silicone might be better, but I can't see why vaseline won't work. Usually indoor connections don't suffer from the corrison problems that outdoor ones do, unless say you live on the beach and leave your windows open all the time. Mike Oh to clarify I meant silicone grease.. Not RTV silicone sealant WD40's OK too. -- Ian For what? It'll wash off whatever is on there to begin with, but it won't leave anything useful behind. |
Vaseline on coax connection?
On Fri, 14 Mar 2008 20:10:24 +0000, Ian Jackson
wrote: In message , Michael Kennedy writes "Michael Kennedy" wrote in message ... "lbbss" wrote in message ... On Mar 13, 10:31 pm, "James Sweet" wrote: "lbbss" wrote in message ... Is it a good idea to put Vaseline on a coax connection, or will it damage the thread? thanks. It won't damage anything, but it might be kinda messy. Is this connection outdoors? no its a indoor connection, but I have lots of them. If it is a perminanent connection I don't see where it will be a problem. Like someone else said silicone might be better, but I can't see why vaseline won't work. Usually indoor connections don't suffer from the corrison problems that outdoor ones do, unless say you live on the beach and leave your windows open all the time. Mike Oh to clarify I meant silicone grease.. Not RTV silicone sealant WD40's OK too. OK for what? For short term water displacement yes, for anything more than a week or so, WD-40 is totally useless, it is 100% aromatic, and will vaporize leaving nothing. |
Vaseline on coax connection?
In message , PeterD
writes On Fri, 14 Mar 2008 20:10:24 +0000, Ian Jackson wrote: In message , Michael Kennedy writes "Michael Kennedy" wrote in message ... "lbbss" wrote in message ... On Mar 13, 10:31 pm, "James Sweet" wrote: "lbbss" wrote in message ... Is it a good idea to put Vaseline on a coax connection, or will it damage the thread? thanks. It won't damage anything, but it might be kinda messy. Is this connection outdoors? no its a indoor connection, but I have lots of them. If it is a perminanent connection I don't see where it will be a problem. Like someone else said silicone might be better, but I can't see why vaseline won't work. Usually indoor connections don't suffer from the corrison problems that outdoor ones do, unless say you live on the beach and leave your windows open all the time. Mike Oh to clarify I meant silicone grease.. Not RTV silicone sealant WD40's OK too. OK for what? For short term water displacement yes, for anything more than a week or so, WD-40 is totally useless, it is 100% aromatic, and will vaporize leaving nothing. It won't vaporize completely. There'll be a long-lasting film left behind - especially if the connectors are indoors. However, Vaseline and silicon grease will be just fine. -- Ian |
Vaseline on coax connection?
On Fri, 14 Mar 2008 22:05:19 +0000, Ian Jackson
wrote: In message , PeterD writes On Fri, 14 Mar 2008 20:10:24 +0000, Ian Jackson wrote: In message , Michael Kennedy writes "Michael Kennedy" wrote in message ... "lbbss" wrote in message ... On Mar 13, 10:31 pm, "James Sweet" wrote: "lbbss" wrote in message ... Is it a good idea to put Vaseline on a coax connection, or will it damage the thread? thanks. It won't damage anything, but it might be kinda messy. Is this connection outdoors? no its a indoor connection, but I have lots of them. If it is a perminanent connection I don't see where it will be a problem. Like someone else said silicone might be better, but I can't see why vaseline won't work. Usually indoor connections don't suffer from the corrison problems that outdoor ones do, unless say you live on the beach and leave your windows open all the time. Mike Oh to clarify I meant silicone grease.. Not RTV silicone sealant WD40's OK too. OK for what? For short term water displacement yes, for anything more than a week or so, WD-40 is totally useless, it is 100% aromatic, and will vaporize leaving nothing. It won't vaporize completely. There'll be a long-lasting film left behind - WD-40 *WILL* vaporize completely. That is part of the WD-40 design specification! WD-40 is not, was not, never was, isn't, won't be a lubricant for long term use. It has slight value as a short term (hours or perhaps days) for lubrication or protection, but no value for either for any period of time exceeding a day or two, let alone a week. especially if the connectors are indoors. However, Vaseline and silicon grease will be just fine. Silicon dielectric grease will work very well, Vaseline may work, however vaseline contains compounds that may nto be suitable for contact with other than one's private parts... IOW, it may not be good for electrial work. That said, we use it for a mold release agent... Works well for that! |
Vaseline on coax connection?
ireland-informatiom thewearingofthegreen
Fu,,K YOU, BITCH! cuhulin |
Vaseline on coax connection?
PeterD wrote: WD-40 *WILL* vaporize completely. That is part of the WD-40 design specification! WD-40 is not, was not, never was, isn't, won't be a lubricant for long term use. It has slight value as a short term (hours or perhaps days) for lubrication or protection, but no value for either for any period of time exceeding a day or two, let alone a week. Tell that to gun collectors who made the mistake of using WD-40, and having to remove the crap that built up. WD-40 is a petroleum distillate, and does not completely evaporate. It was developed to displace water in electrical systems, and leave a coating to help seal the surface. -- aioe.org is home to cowards and terrorists Add this line to your news proxy nfilter.dat file * drop Path:*aioe.org!not-for-mail to drop all aioe.org traffic. http://improve-usenet.org/index.html |
Vaseline on coax connection?
lbbss wrote: Is it a good idea to put Vaseline on a coax connection, or will it damage the thread? It won't damage metal at all, but I've seen PVC insulation turn to the consistency of hard cheese when exposed to petroleum products. Use silicone grease instead, or just wrap the connection with black electrical tape. |
Vaseline on coax connection?
Old Radio tb (tv) commercial I remember from wayyyyy back in the
1950s,,,,,,, Vaseline Petroleum Jellyyyy,,,, Your First Aid Kit in a Jarrrr!!!! Hey, Paul Gallo, www.supertalkms.com last year he said on his Radio talk show to put Vicks VapoRub on the bottom of your feet.I might try that out someday. cuhulin |
Vaseline on coax connection?
So basically it does not sound like vaseline will don any harm to the
thread. That's all I needed thanks. |
Vaseline on coax connection?
"lbbss" wrote in message
... So basically it does not sound like Vaseline will do any harm to the thread. That's all I needed. Thanks. I didn't respond to this because I wasn't sure what the OP wanted to know. I assumed he meant whether it was okay to grease the threads, but everyone else seemed to interpret the question as to whether it was okay to cover the outside of the connector with Vaseline -- which seems harmless. If you were greasing up the threads to keep them from binding -- would the goo have any effect on the electrical behavior of the connectors? |
Vaseline on coax connection?
In message , William
Sommerwerck writes "lbbss" wrote in message ... So basically it does not sound like Vaseline will do any harm to the thread. That's all I needed. Thanks. I didn't respond to this because I wasn't sure what the OP wanted to know. I assumed he meant whether it was okay to grease the threads, but everyone else seemed to interpret the question as to whether it was okay to cover the outside of the connector with Vaseline -- which seems harmless. If you were greasing up the threads to keep them from binding -- would the goo have any effect on the electrical behavior of the connectors? Unless someone, for a joke, has put iron filings in his favourite pot of Vaseline, probably not a lot! -- Ian |
Vaseline on coax connection?
UK, dont put any Ben Gay on a certain part of your body.
Vaseline is a petroleum product. cuhulin, in America |
Vaseline on coax connection?
On Thu, 13 Mar 2008 19:38:31 -0700 (PDT), lbbss
wrote: Is it a good idea to put Vaseline on a coax connection, or will it damage the thread? thanks. If you must make a mess, use silicon grease. You didn't bother to mention what you're trying to accomplish. If all you want to do is prevent the connector threads from corroding together, then any kind of anti-seize, silicon grease, Vaseline, 90 wt axle grease, lithium grease, white grease, ad nauseam, will work. If you're anticipating corrosion problems in the connector threads, then you have a waterproofing problem that should be solved with a different solution. If you want to waterproof a connector, filling it with silicon grease is basically a lousy idea. The water it's trying to keep out has already entered the connector before it hits the silicon grease. A small void (caused by cable flexing) and you've got water in the connector that's not going to easily drain out. Everyone seems to have their favorite method of waterproofing coax connectors. Mine is to wrap the connector with 1" wide Teflon tape. It's a bit difficult to find but most plumbing supply houses have it. Embalm the connector with the Teflon tape. Then mummify it with ordinary electrical tape (outdoor variety). All the tape does is hold the Teflon tape in place. The Teflon will cold flow into the connector making a very water proof seal. When it comes time to inspect or replace the connector, the Teflon tape comes off very easily, and the connector looks like new. -- Jeff Liebermann 150 Felker St #D http://www.LearnByDestroying.com Santa Cruz CA 95060 http://802.11junk.com Skype: JeffLiebermann AE6KS 831-336-2558 |
Vaseline on coax connection?
Jeff Liebermann wrote in
: On Thu, 13 Mar 2008 19:38:31 -0700 (PDT), lbbss wrote: Is it a good idea to put Vaseline on a coax connection, or will it damage the thread? thanks. If you must make a mess, use silicon grease. ..... Everyone seems to have their favorite method of waterproofing coax connectors. Mine is to wrap the connector with 1" wide Teflon tape. It's a bit difficult to find but most plumbing supply houses have it. Embalm the connector with the Teflon tape. Then mummify it with ordinary electrical tape (outdoor variety). All the tape does is hold the Teflon tape in place. The Teflon will cold flow into the connector making a very water proof seal. When it comes time to inspect or replace the connector, the Teflon tape comes off very easily, and the connector looks like new. Great ideas. One other suggestion, I found some black, rubber-like, tape that bonds to itself. It comes on a roll with a layer of blue plastic separating the black tape from itself. As I said, it bonds to itself. There is no adhesive on the tape. It stretches to conform to surfaces and seems to form a weatherproof seal. Not sure what it is called, but it might be a good substitute for the electrical tape you mentioned. Once it has been put on, it is almost like it has been heat-shrunk in place. -- bz 73 de N5BZ k please pardon my infinite ignorance, the set-of-things-I-do-not-know is an infinite set. remove ch100-5 to avoid spam trap |
Vaseline on coax connection?
"bz" wrote in message
98.139... Once it has been put on, it is almost like it has been heat-shrunk in place. Did anyone recommend heat-shrink tubing? |
Vaseline on coax connection?
In message 39, bz
writes Jeff Liebermann wrote in : On Thu, 13 Mar 2008 19:38:31 -0700 (PDT), lbbss wrote: Is it a good idea to put Vaseline on a coax connection, or will it damage the thread? thanks. If you must make a mess, use silicon grease. .... Everyone seems to have their favorite method of waterproofing coax connectors. Mine is to wrap the connector with 1" wide Teflon tape. It's a bit difficult to find but most plumbing supply houses have it. Embalm the connector with the Teflon tape. Then mummify it with ordinary electrical tape (outdoor variety). All the tape does is hold the Teflon tape in place. The Teflon will cold flow into the connector making a very water proof seal. When it comes time to inspect or replace the connector, the Teflon tape comes off very easily, and the connector looks like new. Great ideas. One other suggestion, I found some black, rubber-like, tape that bonds to itself. It comes on a roll with a layer of blue plastic separating the black tape from itself. As I said, it bonds to itself. There is no adhesive on the tape. It stretches to conform to surfaces and seems to form a weatherproof seal. Not sure what it is called, but it might be a good substitute for the electrical tape you mentioned. Once it has been put on, it is almost like it has been heat-shrunk in place. What you are describing is self-amalgamating rubber tape. That is exactly what I sometimes use for outdoor for splices. First, spray the connectors with WD40, shake off the surplus, and screw the cables together. If necessary, give another spray. Now, wipe off the surplus WD40, but not too enthusiastically, so that some still remains on the connectors. Then, with a bit more enthusiasm, completely clean the WD40 off the cable, starting at about an inch out from either side of the connectors, and working away from the connectors. Now clean your hands so that they are free of WD40. Wrap the splice with self-amalgamating tape. Start at one side of the splice, where the cable is free of WD40, and work progressively across the splice to the other side where the cable is again free of WD40. Keep the tape moderately and uniformly stretched as you progress with the wrapping, and make sure that each turn around the cable adequately overlaps the preceding turn. [Note that the tape will not stick to the cable (even where it is free of WD40). It will only stick - and soon fuse - to itself.] I can guarantee that a splice made in this way will last for decades. If eventually the tape is cut off, the connectors will look like the day you made the splice. -- Ian |
Vaseline on coax connection?
"msg" wrote in message
... bz wrote: snip Great ideas. One other suggestion, I found some black, rubber-like, tape that bonds to itself. It comes on a roll with a layer of blue plastic separating the black tape from itself. snip Isn't this 'friction tape'? Michael Not friction tape; it's called Self-Vulcanizing tape. The rubber that the tape is made of vulcanizes to itself when it is wound over itself with a bit of stretching. Totally waterproof when used properly. The blue (or whatever color the mfr happens to use) is to keep the tape from self-vulcanizing into a solid mass on the spool. If you want to waterproof a connector, you need to be sure that the tape totally covers the connector and the cables. Sometimes that is a bit difficult when the connectors have irregular surfaces. If that happens, use a bit of silicone adhesive to help shape the surface to be covered. -- Dave M MasonDG44 at comcast dot net (Just substitute the appropriate characters in the address) "In theory, there isn't any difference between theory and practice. In practice, there is." - Yogi Berra |
Vaseline on coax connection?
Jeff Liebermann wrote: On Thu, 13 Mar 2008 19:38:31 -0700 (PDT), lbbss wrote: Is it a good idea to put Vaseline on a coax connection, or will it damage the thread? thanks. If you must make a mess, use silicon grease. You didn't bother to mention what you're trying to accomplish. If all you want to do is prevent the connector threads from corroding together, then any kind of anti-seize, silicon grease, Vaseline, 90 wt axle grease, lithium grease, white grease, ad nauseam, will work. If you're anticipating corrosion problems in the connector threads, then you have a waterproofing problem that should be solved with a different solution. If you want to waterproof a connector, filling it with silicon grease is basically a lousy idea. The water it's trying to keep out has already entered the connector before it hits the silicon grease. A small void (caused by cable flexing) and you've got water in the connector that's not going to easily drain out. 'Gelled' underground coax is filled with silicon, and no matter what you do, it will weep from the joint and stain carpets, floors and walls. Vaseline will do the same thing, but if he OP wants greasy stains that are highly flammable, that's his choice. Who knows? The arson inspector may even miss it after a fire. Everyone seems to have their favorite method of waterproofing coax connectors. Mine is to wrap the connector with 1" wide Teflon tape. It's a bit difficult to find but most plumbing supply houses have it. Embalm the connector with the Teflon tape. Then mummify it with ordinary electrical tape (outdoor variety). All the tape does is hold the Teflon tape in place. The Teflon will cold flow into the connector making a very water proof seal. When it comes time to inspect or replace the connector, the Teflon tape comes off very easily, and the connector looks like new. -- aioe.org is home to cowards and terrorists Add this line to your news proxy nfilter.dat file * drop Path:*aioe.org!not-for-mail to drop all aioe.org traffic. http://improve-usenet.org/index.html |
Vaseline on coax connection?
msg wrote: Isn't this 'friction tape'? No, 'friction tape' is black tape made from heavy cloth, and a tar like adhesive. It was used to cover joints on the old 'Knob & Tube' wiring almost 100 years ago. -- aioe.org is home to cowards and terrorists Add this line to your news proxy nfilter.dat file * drop Path:*aioe.org!not-for-mail to drop all aioe.org traffic. http://improve-usenet.org/index.html |
Vaseline on coax connection?
bz wrote:
snip Great ideas. One other suggestion, I found some black, rubber-like, tape that bonds to itself. It comes on a roll with a layer of blue plastic separating the black tape from itself. snip Isn't this 'friction tape'? Michael |
Vaseline on coax connection?
On Sat, 15 Mar 2008 22:18:23 -0400, "Michael A. Terrell"
wrote: 'Gelled' underground coax is filled with silicon, I call it "slime". Ma Bell uses it for all their outdoor splices. Once transferred to the hands, it gets onto everything and is difficult to remove. I think they used the same formula in the Steve McQueen movie "The Blob". The only difference is that the blob was black. Otherwise, they act the same. Even more insidious is gel filled CAT5. It just keeps oozing and oozing out. I usually terminate gel filled CAT5 to a patch panel or intermediate RJ45 splice (to a CAT5 patch cable). If I plugged the gel smeared connector directly into the network hardware, I would have slimy gel all over everything. and no matter what you do, it will weep from the joint and stain carpets, floors and walls. Yep. However, my guess(tm) is that the OP was planning to do this outdoors, where corrosion and water incursion are common problems. It usually doesn't rain indoors and there are few homes with corrosive atmospheres. I think he's safe forgetting about the lube job if used indoors. Vaseline will do the same thing, but if he OP wants greasy stains that are highly flammable, that's his choice. Who knows? The arson inspector may even miss it after a fire. Been there. No Vaseline required to torch a tower: http://802.11junk.com/jeffl/pics/drivel/slides/monopoleBurn.html http://odessaoffice.com/wireless/priceless.jpg Hint: Don't try to enlarge the hole in the antenna mast with a cutting torch. Coax cable and CAT5 are highly flammable. -- Jeff Liebermann 150 Felker St #D http://www.LearnByDestroying.com Santa Cruz CA 95060 http://802.11junk.com Skype: JeffLiebermann AE6KS 831-336-2558 |
Vaseline on coax connection?
On Sat, 15 Mar 2008 11:46:24 -0700, Jeff Liebermann
wrote: On Thu, 13 Mar 2008 19:38:31 -0700 (PDT), lbbss wrote: Is it a good idea to put Vaseline on a coax connection, or will it damage the thread? thanks. If you must make a mess, use silicon grease. You didn't bother to mention what you're trying to accomplish. If all you want to do is prevent the connector threads from corroding together, then any kind of anti-seize, silicon grease, Vaseline, 90 wt axle grease, lithium grease, white grease, ad nauseam, will work. If you're anticipating corrosion problems in the connector threads, then you have a waterproofing problem that should be solved with a different solution. Won't some of these things interfere with the electrical conductivity of the connection? It is the ground after all. It's got lots of area to make contact on, so it probably won't have any practical effect, but should we be messing up any electrical conductivity. If you want to waterproof a connector, filling it with silicon grease is basically a lousy idea. The water it's trying to keep out has already entered the connector before it hits the silicon grease. A small void (caused by cable flexing) and you've got water in the connector that's not going to easily drain out. Everyone seems to have their favorite method of waterproofing coax connectors. Mine is to wrap the connector with 1" wide Teflon tape. It's a bit difficult to find but most plumbing supply houses have it. Embalm the connector with the Teflon tape. Then mummify it with ordinary electrical tape (outdoor variety). All the tape does is hold Have you tried silicon tape, also known as shrink tape. It's much thicker and is at least 4 dollars a roll, and and has a thin backing that has to be pulled off, but after that, you stretch it to twice its length or more than wrap it around and it pulls back, and sticks really well to itself and other things. After a while, a few days maybe, not sure, it turns in to one blob, mummifying and waterproofing in one step. The rolls I've seen look a lot like electical tape but have a white plastic tube that it is wrapped on, not the paper tube that plastic electrical tape has. I think I have only seen this mail order. the Teflon tape in place. The Teflon will cold flow into the connector making a very water proof seal. When it comes time to inspect or replace the connector, the Teflon tape comes off very easily, and the connector looks like new. That wouldn't be true of this stuff. Probably need a knife, blade up, to slit the whole thing to get back inside. But it's great stuff. Better than heat shrink tubing, much heavier, and also able to be applied from the outside, wrapped around, when there is no way to slide on from the end. If you are inclined to email me for some reason, remove NOPSAM :-) |
Vaseline on coax connection?
On Sat, 15 Mar 2008 22:12:58 +0000, Ian Jackson
wrote: In message 39, bz writes Jeff Liebermann wrote in m: On Thu, 13 Mar 2008 19:38:31 -0700 (PDT), lbbss wrote: Is it a good idea to put Vaseline on a coax connection, or will it damage the thread? thanks. If you must make a mess, use silicon grease. .... Everyone seems to have their favorite method of waterproofing coax connectors. Mine is to wrap the connector with 1" wide Teflon tape. It's a bit difficult to find but most plumbing supply houses have it. Embalm the connector with the Teflon tape. Then mummify it with ordinary electrical tape (outdoor variety). All the tape does is hold the Teflon tape in place. The Teflon will cold flow into the connector making a very water proof seal. When it comes time to inspect or replace the connector, the Teflon tape comes off very easily, and the connector looks like new. Great ideas. One other suggestion, I found some black, rubber-like, tape that bonds to itself. It comes on a roll with a layer of blue plastic separating the black tape from itself. As I said, it bonds to itself. There is no adhesive on the tape. It stretches to conform to surfaces and seems to form a weatherproof seal. Not sure what it is called, but it might be a good substitute for the electrical tape you mentioned. Once it has been put on, it is almost like it has been heat-shrunk in place. What you are describing is self-amalgamating rubber tape. That is exactly what I sometimes use for outdoor for splices. That's what my other post, below, is referring to. Where do you buy the stuff. If you are inclined to email me for some reason, remove NOPSAM :-) |
Vaseline on coax connection?
On Sat, 15 Mar 2008 22:21:33 -0400, "Michael A. Terrell"
wrote: msg wrote: Isn't this 'friction tape'? No, 'friction tape' is black tape made from heavy cloth, and a tar like adhesive. It was used to cover joints on the old 'Knob & Tube' wiring almost 100 years ago. Right. It was also used to wrap splices, but as much as I like old stuff, it does dry out, especially when you start with a roll that is 30 years old or more. I still have a roll. Friction tape is what baseball bats were wrapped with, at least after-market, so one could maintain a good grip on the bat. Friction. If you are inclined to email me for some reason, remove NOPSAM :-) |
Vaseline on coax connection?
On Sun, 16 Mar 2008 01:27:01 -0400, mm
wrote: Won't some of these things interfere with the electrical conductivity of the connection? No. There is so much surface area involved that there's certain to be a connection. Even if the grease were a perfect insulator and conformally coats the threads, the capacitance between the threads would be sufficient to conduct all but the lowest frequency RF signal. It is the ground after all. Sure. It's the RF ground. It has to pass signal at whatever RF frequency the radio is operating. You could put a capacitor in series with the ground lead, and it would still work. Well, if you have a precipitation static or wind generated static problem, you need some way to bleed off the accumulated charge, so you will need a DC connection to ground. For such situations, there's usually a large (1Meg) resistor across antenna connection to bleed off the charge. Most radios have this built in. It's got lots of area to make contact on, so it probably won't have any practical effect, but should we be messing up any electrical conductivity. If it has no effect (practical or otherwise) it should work. Incidentally, I recently setup a big battery backup system. An argument ensued over whether to grease the lead battery posts and hardware to prevent corrosion, or to leave them clean to maximize conductivity. We eventually determined that compressing the connection squeezes all of the grease out of the connection, resulting in exactly the same connectivity with or without the grease. Have you tried silicon tape, also known as shrink tape. Sure. There are two types. One is a sticky on the inside type used by the electrical industry. Incidentally, it's "cold shrink" and does not require heat to shrink the tubing: http://solutions.3m.com/wps/portal/3M/en_US/3MElectrical/Home/Solutions/Do-It-Yourself/AutoMarineRV/ColdShrink/ I've used the stuff and it works. However, there are several problems. The seal is the sticky goo on the inside. It makes a mess and does not come off cleanly. You also have to get it right the first time, or you get to start over. The thick sleeving does NOT conform well to lumpy connectors or drastic changes in diameter. It's very stiff and does not bend at all. Not recommended. There's also conventional shrink tube, with no sticky goo on the inside. This doesn't work very well. Without the goo, capillary action sucks water up the interface between the coax jacket and the shrink tubing. Not recommended. It's much thicker and is at least 4 dollars a roll, and and has a thin backing that has to be pulled off, but after that, you stretch it to twice its length or more than wrap it around and it pulls back, and sticks really well to itself and other things. I've used several versions of that stuff. One is like tar on a roll. Wrap the connector with the stuff and it all sorta melts together. One flavor forms a sticky mess that it totally waterproof, but impossible to remove. Another variation allegedly just sticks to itself, and not the connector. This has the capillary action problem, where water creeps up the interface boundary. After a while, a few days maybe, not sure, it turns in to one blob, mummifying and waterproofing in one step. If you want an irreparable blob, that's probably a good way to do it. I prefer something that can be easily disassembled, doesn't suck in water, can be flexed without opening a channel for water, and is cheap. The rolls I've seen look a lot like electical tape but have a white plastic tube that it is wrapped on, not the paper tube that plastic electrical tape has. I think I have only seen this mail order. Most electrical supply houses carry the stuff from various vendors. It's "self-vulcanizing tape". About $1/ft. For example: http://www.atomictape.com/atomic_tape_fact_sheet.htm The silicon version is sold in automotive shops as a "muffler bandage". the Teflon tape in place. The Teflon will cold flow into the connector making a very water proof seal. When it comes time to inspect or replace the connector, the Teflon tape comes off very easily, and the connector looks like new. That wouldn't be true of this stuff. Probably need a knife, blade up, to slit the whole thing to get back inside. But it's great stuff. Better than heat shrink tubing, much heavier, and also able to be applied from the outside, wrapped around, when there is no way to slide on from the end. I'll confess to NOT having tried everything available. When I came up with the 1" Teflon tape trick, I stopped looking as I had found what I consider to be a universal solution. The biggest problem is using inferior electrical tape to hold the mess together, or accidentally using non-UV proof tape. The outside electrical tape doesn't do much, but it has to be properly overlapped as it won't stick to the Teflon. -- Jeff Liebermann 150 Felker St #D http://www.LearnByDestroying.com Santa Cruz CA 95060 http://802.11junk.com Skype: JeffLiebermann AE6KS 831-336-2558 |
Vaseline on coax connection?
In article ,
mm wrote: Have you tried silicon tape, also known as shrink tape. It's much thicker and is at least 4 dollars a roll, and and has a thin backing that has to be pulled off, but after that, you stretch it to twice its length or more than wrap it around and it pulls back, and sticks really well to itself and other things. After a while, a few days maybe, not sure, it turns in to one blob, mummifying and waterproofing in one step. The rolls I've seen look a lot like electical tape but have a white plastic tube that it is wrapped on, not the paper tube that plastic electrical tape has. I think I have only seen this mail order. I've seen and bought "self-amalgamating rubber tape" (same principle, maybe the same stuff) at my local Home Depot. I agree, it's very useful stuff. The one caveat I've read is that some types of this self-amalgamating rubber aren't all that resistant to the UV in sunlight, and can break down with time if used in direct sunlight. The solution to this is easy, fortunately - first wrap-and-seal the connection with self- amalgamating tape, and then over-wrap with ordinary black plastic electrical tape to shield the inner layer from sunlight. Another alternative is to use Coax Seal putty on the connector, and then overwrap with black plastic tape. Although removable, this stuff is rather messy to remove if you use it right on the connector (it gets into the threads, and tends to stain things). -- Dave Platt AE6EO Friends of Jade Warrior home page: http://www.radagast.org/jade-warrior I do _not_ wish to receive unsolicited commercial email, and I will boycott any company which has the gall to send me such ads! |
Vaseline on coax connection?
Dave Platt wrote:
snip The one caveat I've read is that some types of this self-amalgamating rubber aren't all that resistant to the UV in sunlight, and can break down with time if used in direct sunlight. The solution to this is easy, fortunately - first wrap-and-seal the connection with self- amalgamating tape, and then over-wrap with ordinary black plastic electrical tape to shield the inner layer from sunlight. I use a complete conformal coating of roofing cement (black flashing cement with glass fiber mix) over the tape; it hardens but remains flexible and is completely waterproof if done well. Michael |
Vaseline on coax connection?
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Vaseline on coax connection?
Michael A. Terrell in central Florida is a PUSSY.That BITCH will never
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Vaseline on coax connection?
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Vaseline on coax connection?
I wanted to use Vaseline, not for water proofing, but for making sure
I have a good connection. |
Vaseline on coax connection?
On Sun, 16 Mar 2008 16:46:20 -0700 (PDT), lbbss
wrote: I wanted to use Vaseline, not for water proofing, but for making sure I have a good connection. The *ONLY* reason you might consider greasing the connector is for waterproofing. You'll have a good connection with or without the lube. There's nothing better than metal to metal. However, if you're using dissimilar metals on the connector, you may have a problem that Vaseline isn't going to solve. I suggest you read some of the replies to your question. There's considerable good info and advice in there. -- Jeff Liebermann 150 Felker St #D http://www.LearnByDestroying.com Santa Cruz CA 95060 http://802.11junk.com Skype: JeffLiebermann AE6KS 831-336-2558 |
Vaseline on coax connection?
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