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Waterproof Cable Connector (Resin Filled / Customizable)

by plainolddave Jan 23, 2014
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actually you can make this 230V safe without much extra efford. 1. the gab where you solder the wires together needs to be much shorter. try and half it. 2.heat shrink both wires. 3 if possible apply a blob of silicone before you apply heat to the shrink, so that any excess silicon is pushed out. let this cure for 24 hour before you go ahead. 4. put a heat shrink tube at each end of the connector and also push a blob of silicone between the heatshrink and the wire and a smear under the heatshrink where it goes over the cable connector, apply heat alt let it cure for 24 hours. can of course cure at the same time as the smaller bits does. now fill the connector up and let it set.... if you want to be very fancy you can cover the hole thing with another bit of heat shrink filled with a big blob of silicone and you are mains safe... there are no way water gets inside....

Excellent idea! This type of "thingking" is going to change everything. Keep tweaking the material/design and your going to have a winner here!

Very interesting design. You could incorporate silicone into it as well, either as a simple gasket around the wires (instead of tape) or just fill it with silicone instead of epoxy. Either way.

Also if you use a urethane resin instead of epoxy, it cures in as little as 15 minutes but is off white when cured (clear before curing).

Nice idea. A mini version of the 3M Scotchcast kits. Perfect idea for our sailboat electrics, all 12 vdc. In my case, I think I will tie an overhand knot in each wire inside the splice to give it mechanical strain relief across the solder joints. Thanks for the idea.

No worries - enjoy - the funny thing is I have a sailboat also and never even thought about using these for it (I like your thinking!). To be honest this thing was really just a first go at knocking up something in the Customizer - the one in the photo was done ages ago in Solidworks so have posted the .sldprt files as well in case it helps anyone