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Old 01-08-2022, 08:08 PM   #11
special-K
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Join Date: Nov 2004
Location: Mt Airy, MD
Posts: 85,851
Re: Is it some kind of spray foam?

Got pictures to help us understand what you are seeing? Are you seeing just a blob? Could be excess seam sealer, but would be hard and smooth texture. Nothing like spray foam. I can certainly say GM put no sort of spray foam in the corners. Not a little and not a lot
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