Author Topic: Sealant that sticks well to PVC cable insulation?  (Read 7712 times)

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Offline e100Topic starter

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Re: Sealant that sticks well to PVC cable insulation?
« Reply #25 on: April 03, 2018, 07:07:03 am »
Has anyone tried casting their own compression gland using silicone or polyurethane?
I already have some 2-part silicone so I could block one end of a compression fitting, pour in the silicone then drop some dummy bits of wire in to make the channels. Getting them evenly spaced so they don't make contact with each other would be the tricky bit. Once set I would remove the dummy wires and push the sensor wires though.


 

Offline tautech

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Re: Sealant that sticks well to PVC cable insulation?
« Reply #26 on: April 03, 2018, 07:25:16 am »
Has anyone tried casting their own compression gland using silicone or polyurethane?
Never bothered as it's much easier to add heatshrink to a cable to increase it's diameter to fit......whatever.

Even when wires are 'within' the range that a gland can compress to, it's a good idea to add heatshrink to spread the bending moment over a longer radius/area to increase service life of both the insulation and the conductor.
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Offline KL27x

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Re: Sealant that sticks well to PVC cable insulation?
« Reply #27 on: April 03, 2018, 10:34:08 pm »
Hundreds of years ago humans figure out how to combine sinew and glue and horn and wood in just such a way that you could shoot arrows over 500 yards through the air with a bow that weighs only 5 lbs.

If you want the silicone to stick to the pcv insulated wire, you can give it something to stick to. Smear a little silicone over the wire, then wrap some string tightly over the wire. Then cover with more silicone.
 


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