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3M Water Tight Sealant 10 oz

Brand: 3M Mfg#: 98040055034
Product#: 4793000WT10
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Ready-to-use, high-performance, single component, neutral cure, silicone firestop that also acts as a barrier to water leakage and airborne sound transmission. Provides up to 4-hour fire protection. Light gray color with black flecks, no mixing required.


  • L-rated smoke seal
  • Firestop tested up to 4 hr in accordance with ASTM E 814 (UL 1479) and CAN/ULC S115
  • Applied with conventional caulking equipment (excellent adhesion and caulk rate)
  • Re-enterable/repairable
  • Meets UL Water Leakage Test, W Rating - Class 1 requirements
  • Fire resistance tested for static construction joint systems in accordance with ASTM E 1966 (UL 2079)
  • Sag-resistant, halogen-free formulation
  • Minimizes noise transfer (STC-rating of 53 when tested in STC 54-rated wall assembly)
  • Excellent weatherability during construction
  • Tested in accordance with ASTM G 21 standard practice for determining resistance of synthetic polymeric materials to fungi
  • FGG/BM system CPVC compatible


  • Brand: 3M
  • Color: Light Gray with Dark Flecks
  • VOC: Lesser than 30 g/l
  • Type: 3000WT, Intumescent
  • Temperature Range: -10 TO 110 deg C
  • Chemical Compound: Silicon
  • Container Type: Cartridge
  • Specific Gravity: 1.25
  • Cure Time: 4 hr
  • Physical Form: Thixotropic Paste
  • Standards: ASTM E814 (UL 1479)/E1966 (UL 2079), RoHS Compliant
  • Container Size: 10.1 fl oz
  • Usage: For Metallic Pipe, Non-Metallic Pipe (excluding CPVC), Insulated Pipe, Conduit, Power and Communication Cables, Combos, Insulated Pipe and HVAC Duct Penetrations