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.

• Features
• 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

• Specifications
• Application : Commercial Construction
• Color Family : White
• Fire Rating : 2 Hour
• Overall Length (Imperial) : 246 in
• Overall Length (Metric) : 6.248 m
• Overall Thickness (Imperial) : 0.5 in
• Overall Width (Imperial) : 4 in
• Overall Width (Metric) : 102 mm
• Product Color : Off-white
• Product Key : PM 4
• Product Number : PM 4
• Product Type : Fire Barrier Packing Material
• Water-tight : No