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3M 1000NS Fire Barrier 4.5 gal

Brand: 3M Mfg#: 98040052783
Product#: 4791000NS
Based on Product Sourcing
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Non-slump, ready-to-use, single component, neutral cure, elastomeric silicone firestop that also acts as a barrier to water leakage and airborne sound transmission.


  • Applied with conventional caulking equipment (excellent caulk rate)
  • Re-enterable/repairable
  • +/- 31% compression/extension capability
  • Excellent adhesion
  • Helps minimize sound transfer
  • ASTM E 1966 (UL 2079)
  • Perimeter Fire Barrier tested up to 3 hr in accordance with ASTM E 2307
  • FGG/BM system CPVC compatible
  • Non-slump, Halogen-free formula
  • Excellent weatherability during construction
  • Firestop tested up to 3 hrs in accordance with ASTM E 814 (UL 1479) and CAN/ULC S115
  • Fire Resistance tested for construction joint systems in accordance with
  • Meets UL Water Leakage Test, W Rating - Class 1 requirements


  • Chemical Compound: Silicon