Demsun P34 Fire Rated B1 Gun Grade Foam 750ml\n- Excellent adhesion & filling capacity.- High thermal and acoustic insulation value.- Adheres to almost all building materials with the exception of polyethylene, Teflon or contaminated surfaces.- Mould proof, waterproof, and over paintable.- Cured foam can be trimmed, shaped, and sanded.\nDemsun P34 Fire Rated PU Foam is a single component, moisture curing, and self-expanding PU foam. It has a fire rating of up to 235 minutes in certain configurations. Recommended for sealing applications where fire resistance is required.\nFeatures:\n- Excellent mounting capacity.- Fire-rated.