BOSS® Product

BOSS® 816 Intumescent Firestop sealant

  • Bonds quickly with excellent adhesion
  • Mildew Resistant
  • Remains flexible
  • VOC compliant
  • Excellent freeze / thaw properties
  • Safe to use and handle
  • Water based and paintable
  • It has been tested to the following specifications: UL 1479 (ASTM E-814), UL 2079 (ASTM E-1966), ASTM E-84 (0-flame, 0-smoke), ASTM E-90 (STC 53)

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