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Introducing 3M™ FireDam™ Spray 200


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Ideal for sealing building joints, penetration seals and perimeter joints between fire-rated floors (concrete, fireproofed 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.

  • Dries quickly to dark gray or red with consistent spray patterns
  • Less waste — color makes coverage easy to see which helps prevent re-spraying or over-spraying
  • STC rating 56 when installed in a 56 STC rated wall assembly
Learn more | Product Brochure (PDF) | Technical Information (PDF)