Bostik Expanding Foam For System G Gun, Fire Retardant PU Foam, EN 1366-4 compliant, 60 minutes fire resistance in 20 mm gap

Bostik expanding foam for system gun is a professional polyurethane that fills and fixes foam with a structure of fine cells. It provides high thermal and acoustic insulation. This product was specifically developed for fire-resistant sealing and filling of joints and seams in areas where fire resistance is required. It has been fire-resistance tested according to EN 1366-4 up to 60 minutes in a 20 mm wide gap. When used in combination with Bostik FP402 FIRESEAL SILICONE, it will provide up to 180 minutes fire resistance in a 40 mm wide gap.