• Home
  • 3M CP 25WB+ Water Based Fire Barrier Caulk 10 oz
Image for 3M CP 25WB+ Water Based Fire Barrier Caulk 10 oz from White Cap
+ / - Hover over image to Zoom
Other Views

3M CP 25WB+ Water Based Fire Barrier Caulk 10 oz

Brand: 3M Mfg#: 98040054565
Product#: 479CP25WB11
Based on Product Sourcing
Hazardous material shipping restrictions apply. You may be contacted by Customer Service if an alternate shipping method is required.

Please Login to receive Special Pricing
Not Registered? Create an Account


High-performance latex-based intumescent firestop sealant. When properly installed, this product provides up to 4-hour fire protection in tested and listed systems. Firestops items penetrating through fire-rated construction assemblies. Dries to red color, no mixing required.


  • Fire resistance tested for static construction joint systems in accordance with ASTM E 1966 (UL 2079)
  • Applied with conventional caulking equipment (excellent caulk rate)
  • Helps minimize sound transfer
  • Excellent adhesion
  • Re-enterable/repairable
  • Firestop tested up to 4 hr in accordance with ASTM E 814 (UL 1479) and CAN/ULC S115
  • Sag-resistant
  • Halogen-free
  • Paintable
  • Expansive UL and other third-party listed systems


  • Brand: 3M
  • Product Line: CP 25WB+
  • Standards: ASTM E814 (UL 1479)/E1966 (UL 2079), RoHS Compliant
  • Temperature Range: 4 - 50 deg C deg
  • Color: Red
  • Specific Gravity: 1.35
  • Container Type: Cartridge
  • VOC: Lesser than 1 g/l
  • Container Size: 10.1 fl oz
  • Hardness: 45
  • Physical Form: Paste
  • Cure Time: 4 hr