24oz (680G) Handi-Foam Fireblock Straw Foam HC Sealant P30192 Handi-Foam FireBlock Polyurethane Foam Sealant Handi-Foam® Fireblock Sealants are designed to seal, fill, bond and stop air infiltration. Handi-Foam Fireblock is available in both straw foam and gun foam dispensing systems. Sealants are tack free within 10 minutes and meet ASTM E-84
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