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Sealant that sticks well to PVC cable insulation?
138 1 Oct 19.2019, 10:05:50

I need to waterproof some outdoor sensor lead connections that have conventional PVC insulated copper wire.
Can anyone recommend a sealant that bonds strongly to the PVC insulation so that water cannot creep between the insulation and the sealant to form a leakage path.
PVC in the plumbing industry has a reputation for being non-stick unless you resort to solvent based adhesive/sealants that partly dissolve and bond with the PVC. Using something like a PVC gutter sealant somehow doesn't seem right. It also has a multi-day cure time and shrinks as the solvent evaporates.

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A****min

Oct 21.2019, 17:45:51

Why not do it properly and use cable glands ?

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