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GregS GregS is offline
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Default silicone adhesive as electrical insulation?

In article . com, "Paul" wrote:

wrote:
sci.electronics.repair, rec.bicycles.tech

Leads from the cateye enduro's cyclocomputer body snapped off during
an accident.

I tried soldering the new length of magnet pickup wires following the
epoxy? block covering the pickup's connection pins molded into the
computer's bar mount AND then Gooping the wire's solder connections
to the bar mount at the epoxy block

Goop is silicone adhesive -

Question is does the goop silicone provide electrical insulation at
this low voltage flow?

The computer stopped recording data after 3-4 miles.

If the Goop is a no go what adhesive is durable and adequate
insulation? What are cateye bodies made of and what adhesive works best
there?


Any silicone (RTV) that I've worked with is a good insulator when fully
cured.
I wouldn't be surprised if it is somewhat conductive before it is
cured, but I never checked.
I never apply voltage until it is fully cured.


Rtv need not be capitalized. Goop is not silicone to me. Its more like a plastic.
I use the different Goops, including Shoe Goo, and I am not going to claim it
has no reaction to conections, but I don't think I have seen problems. If Goop is used in the sun,
it should contain UV inhibitors like Marine Goop has. Goop is one of the strongest
glues, but retains some flex. It takes several days for full cure. Silicone shuld have
no conductivity, allthough it is not a vapor block, where Goop may have a good
vapor lock. Electrical connections should be painted with enamel before
applying silicone.

greg