Need some "waterproof" 12 v power connectors
Greg wrote:
Incidentally, your work experience sounds like fun to me. How do you still sail in the Merchant Marine and also find time to teach? It has been a lot of fun. I now sail for just 4 to 6 months of the year and only teach the winter quarter. Rick |
Need some "waterproof" 12 v power connectors
padeen wrote:
Sooo..... What DID you use as a sealant ...? Well, it was a multistep process that started with soldered butt splices, covered with heatshrink. The stepped splices were then wrapped with a well stretched layer of self-vulcanizing tape and the whole was filled with a 3M product called ScotchFil, a soft, thick, rubbery tape that filled all the voids between the conductors. Next, the smoothed Scotchfil was wrapped with another couple of wraps of self vulcanizing tape until the splice was smooth and solid. Final wraps of a vinyl tape like Scotch 33 overlapped the entire length and then that was secured with cable wrapping thread and finally the entire splice was coated with Scotchkote, a rubber glue type of sealant. These splices were almost guaranteed to work to 10,000 feet. Note the almost ... Rick |
Need some "waterproof" 12 v power connectors
padeen wrote:
Sooo..... What DID you use as a sealant ...? Well, it was a multistep process that started with soldered butt splices, covered with heatshrink. The stepped splices were then wrapped with a well stretched layer of self-vulcanizing tape and the whole was filled with a 3M product called ScotchFil, a soft, thick, rubbery tape that filled all the voids between the conductors. Next, the smoothed Scotchfil was wrapped with another couple of wraps of self vulcanizing tape until the splice was smooth and solid. Final wraps of a vinyl tape like Scotch 33 overlapped the entire length and then that was secured with cable wrapping thread and finally the entire splice was coated with Scotchkote, a rubber glue type of sealant. These splices were almost guaranteed to work to 10,000 feet. Note the almost ... Rick |
Need some "waterproof" 12 v power connectors
Greg wrote:
I shrink mine from the middle out to squeeze out excess RTV. That is incredibly messy isn't it? The adhesive filled heat shrink that Steve mentioned is a far better alternative. The adhesive will bond to most wire jackets while RTV just won't stick well enough to depend on. The heat shrink is self contained, no messy tubes, no rags, no drips or blobs of excess goo ... Rick |
Need some "waterproof" 12 v power connectors
Greg wrote:
I shrink mine from the middle out to squeeze out excess RTV. That is incredibly messy isn't it? The adhesive filled heat shrink that Steve mentioned is a far better alternative. The adhesive will bond to most wire jackets while RTV just won't stick well enough to depend on. The heat shrink is self contained, no messy tubes, no rags, no drips or blobs of excess goo ... Rick |
Need some "waterproof" 12 v power connectors
Leanne wrote:
Has anyone tried Liquid Tape? It is good stuff. We use it onboard ship as a substitute for Scotchkote. Another substitute, especially for neoprene jacketed wire is wet suit glue ... I believe all three are essentially the same product though Scotchkote is a much higher quality and is thickened with some type of plasticizer. Rick |
Need some "waterproof" 12 v power connectors
Leanne wrote:
Has anyone tried Liquid Tape? It is good stuff. We use it onboard ship as a substitute for Scotchkote. Another substitute, especially for neoprene jacketed wire is wet suit glue ... I believe all three are essentially the same product though Scotchkote is a much higher quality and is thickened with some type of plasticizer. Rick |
Need some "waterproof" 12 v power connectors
Rick, you don't mention the deep submersibles method of routing nearly all
electrical cables inside of tygon tubing and fittings and filled with mineral oil. The fluid is always at the same pressure as the water outside.. If everything goes as planned, the cabling is never exposed to seawater, even at 10,000 ft. I have built and repaired hundreds of cable assemblies for the DSVs and the DSRVs while working for Locheed Advanced Marine Systems. Steve s/v Good Intentions |
Need some "waterproof" 12 v power connectors
Rick, you don't mention the deep submersibles method of routing nearly all
electrical cables inside of tygon tubing and fittings and filled with mineral oil. The fluid is always at the same pressure as the water outside.. If everything goes as planned, the cabling is never exposed to seawater, even at 10,000 ft. I have built and repaired hundreds of cable assemblies for the DSVs and the DSRVs while working for Locheed Advanced Marine Systems. Steve s/v Good Intentions |
Need some "waterproof" 12 v power connectors
If you don't want to pay the price for the connectors with the self adhisive
sleeves, then use good quality marine connectors and purchase, sperately, the heavy duty adhesive shrink sleeving.. I'm really sold on the heaver self adhesive shrink sleeving.. I get mine from Waytek Inc, http://www.waytekwire.com/ Good prices but they have a minimum order of $25.. Steve s/v Good Intentions |
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