Product Description

3M Fire Barrier Duct Wrap 615+ is a fire wrap for grease ducts and air ducts. Lightweight (6 lbs per cu ft) and thin (1.5″ – in accordance with the tolerances in ASTM C 892) for easier application 2-hour fire protection Third-party certified to ASTM E 2336 (grease duct test standard) and ISO 6944 (air duct test standard) Tested and listed with UL and Intertek, meets IBC, IMC, UMC, NFPA and other key life safety codes Listed by California State Fire Marshal (Listing No. 2440-0941:5555) Supports maximum temperatures of up to 2192°F (1200°C) Apply in 2 layers for grease ducts Apply in 1 layer for air ducts