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Username Post: 1986 Chevy G van windshield
Posts: 8

Loc: Alberta, Canada
Reg: 11-19-15
06-12-21 08:13 PM - Post#2821544    
    In response to gchemist

I came across this butyl vs urethane thread, very long but informative.

Doesn't pertain Chevy vans specifically but GM vehicles in general.

I always thought the older G.M's used butyl tape prior to using urethane.

After the rubber gaskets of the 1950's they used an early form urethane in the 1960-70's.

Randy -bu...
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