Hey folks, 
I'm in the process of rebuilding my 72 Gremlin.  I've been cleaning up the rubber side window gaskets that had a bit of overspray for the previous paint job.  I noticed both had  some kind clay like calking material inside the glass groove and around the outter lip.  A lot of it just flaked out in small chunks.  When it got wet for a period of time, it turned greyish and could be sraped out.   Is that stuff normal?   
Thougths on the best process for reinstallation that won't mess up the rubber? 
Thanks. 
-Bill 
Dallas, TX  | 
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