Thread: Cable to switch covering - use RTV or something else?
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Unread 27-03-2011, 15:57
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Re: Cable to switch covering - use RTV or something else?
RTV is not a good idea to insulate electrical components, most formulations are corrosive to copper. If you do want to try an RTV make sure you find something that won't cause corrosion and if you do I think the ice cube tray would be perfect. All the automotive formulations pop right out of the supplied extension tube when allowed to properly cure.

Another option to look into is the silicone used to make castings, don't know if it will cause issues with corrosion or not. But it is designed to work with a release agent coating the part being replicated. I don't see a reason the release agent couldn't be applied to the ice cube tray.

The last option I can think of is to use a rubber based potting compound designed for circuit boards that will be located in high moisture environments.