B0 Gun Applied Fischer Fire Stop Foam(750ml) (1/pack)

A moisture curing; one part polyurethane expanding foam. Excellent adhesion to most building materials. Acoustic and heat insulation properies. Applications include assembly or door and window frames; filling and sealing of cavities and joints; filling of pipe penetrations in walls; sealing joints in roofing; walls and insulation sheets. FIRE RATED - UP TO 4 HOURS