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#1
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I am reassembling a tillerpilot with a wired remote. I notice that the
manufacturer originally used what looks like a black rubbery compound for waterproofing. I suspect was a silicone rubber product. What is the recommended sealer for plastic assemblies such as remotes, autopilots, etc.? -- Good luck and good sailing. s/v Kerry Deare of Barnegat http://home.comcast.net/~kerrydeare |
#2
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On Mon, 8 Oct 2007 07:01:29 -0400, "Armond Perretta"
wrote: I am reassembling a tillerpilot with a wired remote. I notice that the manufacturer originally used what looks like a black rubbery compound for waterproofing. I suspect was a silicone rubber product. What is the recommended sealer for plastic assemblies such as remotes, autopilots, etc.? I avoid silicone sealants since nothing else sticks to them, or to where they were. I'd use LifeCaulk or some other non-silicone sealant. -- Peter Bennett, VE7CEI peterbb4 (at) interchange.ubc.ca new newsgroup users info : http://vancouver-webpages.com/nnq GPS and NMEA info: http://vancouver-webpages.com/peter Vancouver Power Squadron: http://vancouver.powersquadron.ca |
#3
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"Armond Perretta" wrote in
: What is the recommended sealer for plastic assemblies such as remotes, autopilots, etc.? RTV http://tinyurl.com/2nrbbn Clear RTV....none finer at any price. Comes right off when you want to peel stuff apart...NOT A GLUE OR BONDING agent...it's a SEALER Permatex gasket products also make great sealers, even at engine temperatures! http://tinyurl.com/kdyzb available at lots of auto parts places, Wally World, Lowes, Home De-pot, etc. Don't tell anyone you didn't buy it from the most expensive "marine" place in town, though....(c; Larry -- You can tell there's extremely intelligent life in the universe because they have never called Earth. |
#4
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Peter Bennett wrote in
news.com: I avoid silicone sealants since nothing else sticks to them, or to where they were. He didn't want a glue...he wanted a sealer. I never figured out why boaters use glues as sealers. Larry -- You can tell there's extremely intelligent life in the universe because they have never called Earth. |
#5
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In article , Larry wrote:
"Armond Perretta" wrote in : What is the recommended sealer for plastic assemblies such as remotes, autopilots, etc.? RTV http://tinyurl.com/2nrbbn Clear RTV....none finer at any price. Comes right off when you want to peel stuff apart...NOT A GLUE OR BONDING agent...it's a SEALER Permatex gasket products also make great sealers, even at engine temperatures! http://tinyurl.com/kdyzb available at lots of auto parts places, Wally World, Lowes, Home De-pot, etc. Don't tell anyone you didn't buy it from the most expensive "marine" place in town, though....(c; To me, silicone rtv is a sealer or a glue, its rtv. I always recomended Permatex "sensor safe" products for electronics. It wasn't clear. Silicone is to also not a good water vapor in my opinion. An old boating article in Nuts & Volts said something about this, and also recommended using an enamel coating first to act as a vapor barier. Lacquer is also not a water vapor barier. I tried using lacquer nail polish on stuff, and it doesn't work like enamel. greg |
#6
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On Oct 9, 8:54 am, (G) wrote:
In article , Larry wrote: "Armond Perretta" wrote in : What is the recommended sealer for plastic assemblies such as remotes, autopilots, etc.? RTV http://tinyurl.com/2nrbbn Clear RTV....none finer at any price. Comes right off when you want to peel stuff apart...NOT A GLUE OR BONDING agent...it's a SEALER Permatex gasket products also make great sealers, even at engine temperatures! http://tinyurl.com/kdyzb available at lots of auto parts places, Wally World, Lowes, Home De-pot, etc. Don't tell anyone you didn't buy it from the most expensive "marine" place in town, though....(c; To me, silicone rtv is a sealer or a glue, its rtv. I always recomended Permatex "sensor safe" products for electronics. It wasn't clear. Silicone is to also not a good water vapor in my opinion. An old boating article in Nuts & Volts said something about this, and also recommended using an enamel coating first to act as a vapor barier. Lacquer is also not a water vapor barier. I tried using lacquer nail polish on stuff, and it doesn't work like enamel. greg- Hide quoted text - - Show quoted text - If your going to use silicone to seal anything with electronic components you need to use electronics grade silicone. Standard silicone sealants give off acetic acid as they cure, this vapor can react with electronic components and damage them. Electronics grade silicones do not give off acetic acid vapors as they cure, "sensor save" products are also designed such that they do not give off acetic acid vapors as they cure. I know on my Furuno radar installation instructions their's a note about the use of silicone around the radome for this specific reason. John |
#7
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On Oct 10, 12:25 pm, Capt John wrote:
If your going to use silicone to seal anything with electronic components you need to use electronics grade silicone. Standard silicone sealants give off acetic acid as they cure, this vapor can react with electronic components and damage them. I agree with this. I learned this the hard way long ago. Got some rtv on the back of a circuit board and in short order, you could pull some of the components right off the board as the acid softened the solder joints! Eric |
#8
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Armond Perretta wrote:
What is the recommended sealer for plastic assemblies such as remotes, autopilots, etc.? For sealing the box, you want a "neutral cure" (non corrosive) RTV, such as: http://www.matweb.com/search/Specifi...snum=PGESIL036 If you are coating the circuit board, you want Humiseal. http://www.humiseal.com/ Kevin Gallimore ----== Posted via Newsfeeds.Com - Unlimited-Unrestricted-Secure Usenet News==---- http://www.newsfeeds.com The #1 Newsgroup Service in the World! 120,000+ Newsgroups ----= East and West-Coast Server Farms - Total Privacy via Encryption =---- |
#9
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In article , axolotl wrote:
Armond Perretta wrote: What is the recommended sealer for plastic assemblies such as remotes, autopilots, etc.? For sealing the box, you want a "neutral cure" (non corrosive) RTV, such as: http://www.matweb.com/search/Specifi...snum=PGESIL036 If you are coating the circuit board, you want Humiseal. http://www.humiseal.com/ Kevin Gallimore I did a little experiment to see if vapors could do something to a bare copper board. Nothing seen. I never saw any corrosive effects anytime, but components may be harmed I guess. greg |
#10
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Wax?
Terry K |
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