Self Amalgamating Tape query

Jan 29, 2022 Last reply: 4 years ago 4 Replies
C

Hi All,



I have recently used SAT to insulate and waterproof some joints in 1.0mm 2 core cable. I used chock block for the joins (staggered) though with hindsight, I think twist and SAT would have been sufficient / neater (12V feeding a 26W LED navigation light)


I am confident of its insulating and weatherproofing capabilities, but I wonder, does it also stop the two cables coming apart.



I.e. if you were to take two lengths of 2 core double insulated flex, cut the ends flush. And then correctly wrap SAT around them.



Would it then be easy to pull the join apart? Or not?


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J

IME it's not massively strong (or more to the point, it is quite elastic) - but it does depend on how much you have and over what length etc.

Really the strength should come from elsewhere, and the SAT just doing the sealing and protecting.

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A

+1 The wires beneath the SAT would pull apart but the SAT wouldn't necessarily fail until stretched too far.
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W

Could you make a loop with the joint on the loop, make the loop solid by the use of insulating tape pulled very tight as you apply it?

Bill

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B

Exactly you really should not be exerting forces on wiring anyway, alas this can make fatigue cracking of the insulation appear far faster. One assumes this is a marine application. If its near salt water, then all bets are off. Brian

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