> I spent money too on this stuff until I discovered that Butyl Rubber
> is somewhat conductive, prolly similarly to the black foam.

It is not the rubber itself that is condictive, it is the graphite used
as filler. So stick to black tyres, the white ones use CaC03 as filler,
which is not conductive. But I prefer the foam.

Wouter van Ooijen

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