Check the listing for details. 3M Fire Barrier Duct Wrap 615 12”W x 48” L x 1-1/2” Thickness (New) open box. Condition: New – Open box. Listed at 32.99 USD. This fiber is made from a blend of inorganic fibers including calcium, silica and magnesium and is asbestos free, having the ability to support maximum temperatures up to 1200°C or 2192° for up to 2 hours. This product is 1-1/2" thick with excellent insulating capabilities, low weight and thin profile, it is an ideal choice for a your insulating needs. This non-asbestos insulation is highly flexibility and strong and can be used in a wide variety of applications. The 48” long x 12” wide x 1-1/2” thick insulation will be cut from a 25 foot roll. There will be 2 seams on each end that I will encapsulate in foil tape. Multiple orders will be cut according to numbers purchased. Example: Buy (2) orders and receive one piece that is 24” wide , Buy (3) orders and receive one piece that is 36” wide, and so on. Unless you specify differently. You can use as is , or remove the scrim reinforced foil to expose the inorganic fiber blanket. Caution : This process should be performed outside and a mask should be worn at all times. Uses include kiln , forge , pizza oven, insulating a non fire safe, welding or propane torch shield and many more.uses. Free Same Day Shipping!