
I am concerned that HandiFoam, and other Fireblocks rated to Type V Residential Fireblocks are being used as high temp silicone caulk. I spoke with Becky at Customer Service for Handifoam (Fomo Products). POLYURETHANE FOAM (Fireblock) is NOT RATED for continuous heat exposure above 240 Degrees F. This was Verified by its MSDS sheet (see attached Doc and highlighted notes). There is a bit of a…
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