3M™ FireDam™ Spray 200

Ideal for sealing building joints, penetration seals and perimeter joints between fire-rated floors (concrete, fire-proofed fluted steel decks) and fire-rated walls (gypsum, concrete). Applied as 1/8 inch (3mm) thick coating with an airless sprayer, this water-based coating dries in ambient conditions to form a flexible seal with compression/extension of up to +/- 50% of nominal joint width.