Hi. My contractor used Great Stuff Gap and Cracks spray foam to seal cracks throughout our under-construction home. Due to asthma, allergies, and general sensitivity to chemicals and smells, I had specifically requested no high VOC materials, poly-isocyanates, polyurethane, etc. -- all of which are in this product. They used the foam where the subfloor meets the wall, around plumbing penetrations, and around electrical boxes. Removing the spray foam is dangerous and maybe impossible. Can I seal the foam to prevent a lifetime of off-gassing? Would Hard Seal work for that purpose? Or is there some other approach? Thanks!
SAMPLE - AFM SafeCoat, Hard Seal
Wood Stains & Sealers
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Open Sep 14, 2024 - 08:08 AM
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Answer
Sep 18, 2024 - 11:51 AM
I reached out to AFM, and they bought some of the Great Stuff and tested it. They can't get the AFM products to stick to it properly, so they say that it can't work. And sadly we sell nothing else that can.
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