• Home
  • 3M Fire Barrier Putty Stick
Image for 3M Fire Barrier Putty Stick from White Cap
+ / - Hover over image to Zoom
Other Views

3M Fire Barrier Putty Stick

Brand: 3M Mfg#: 98040054177
Product#: 479MPS2
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


A one-part, ready-to-use, re-enterable, intumescent putty that can be easily formed to firestop through penetrations and blank openings in fire-rated assemblies.


  • Provides draft and cold smoke seal
  • Firestop tested up to 4 hr in accordance with ASTM E 814 (UL 1479) and CAN/ULC S115
  • Noncorrosive to metal and compatible with synthetic cable jackets
  • Helps reduce noise transfer (STC Rating of 56 when tested in STC 56 rated wall assembly)
  • Will not dry out or crumble
  • Pliable and conformable (molds easily into required shapes)


  • Brand: 3M
  • Standards: ASTM E 814, UL 1479
  • Thickness: .1 in
  • Color: Dark Red
  • Length: 11 in
  • Width: 1.4 in
  • Usage: For Construction Gaps, Cable, Insulated Pipe, Electrical Conduit, Metal Pipe, Metallic and Non-Metallic Electrical Boxes, Building Maintenance Applications