Soudal Fire & Acoustic Expanding Foam Gun Grade B1 750ml

One part polyurethane foam that is fire-rated, Firefoam B1 Gun Grade expands upon application to produce up to 50 times the can's contents.

• In some joint combinations, fire-rated for up to 4 hours
• Quick setting: After curing, the foam can be sawed, sliced, or covered with plaster in about one hour
• Fills uneven and wide gaps where the majority of traditional fillers would fall short
• Has insulating and sound-dampening qualities
• Slows the movement of smoke and flames
• Meets the strict standards of BS 476 Part 20 and DIN 4102 Part 1 for Construction Materials, Class B1
• Designed to be used with a Professional Foam Gun
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