Product Details
Inorganic, non-asbestos material is an excellent alternative to mineral wool, fiberglass or backer rod
Easy to use – smooth woven material pulls out quickly and tears off by hand without tools
Mold resistant per ASTM C 1338
Less irritating to skin vs. mineral wool
Fully portable for fast, easy installation
Approved for use in all UL-listed through penetration 3M firestop systems
Our 3M™ Fire Barrier Packing Material PM4 is designed and fully approved as an alternative packing material to mineral wool, fiberglass and backer rod in UL-listed through-penetration 3M firestop systems. Strong, flexible and non-combustible per ASTM E 136, this non-asbestos mold-resistant material is fully portable and can be installed without tools.
Recommended Applications
Metallic, nonmetallic, insulated pipe penetrations
HVAC and power penetrants
Communication cable penetrants
Commercial and industrial construction
Fully Tested and Approved
Approved for use in all UL-listed through penetration 3M firestop systems, our 3M™ Fire Barrier Packing Material PM4 is an inorganic, non-asbestos material ideal for filling around fire protection installations. This inorganic, non-asbestos material is non-combustible per ASTM E 136 testing. It also meets the ASTM C 1338 for resistance to mold and other fungi, helping to ensure permanent firestop installation.
The Science of Better Fire Protection from 3M
Since 1925 when one of our lab assistants invented masking tape, 3M has been applying science to life —developing adhesive products and technologies that help entire industries and individual businesses worldwide. The work that began with a single 3M engineer now spans decades and generations. And all of it goes into each of our adhesives, sealants and protective coatings including 3M™ Fire Barrier Packing Material PM4 — to improve performance, and to help businesses like yours operate faster, better and more efficiently.