Specification Brand : BuyHeatShrink BulletPoint1 : Continuous operating temperature -454°F to 500°F (-270°C to 260°C) BulletPoint2 : Outstanding resistance to almost any chemical known (exceptions: alkali metals in molten state, fluorine gas at high temperatures, chlorine trifluoride). BulletPoint3 : FDA and USP Class VI approved BulletPoint4 : Very low coefficient of friction BulletPoint5 : Flame rating UL94 V0 and VW-1 ExternallyAssignedProductIdentifier1 : 0635414950216 ExternallyAssignedProductIdentifier2 : 635414950216 ItemName : BuyHeatShrink 3/8" 4:1 PTFE Heat Shrink (4ft/pc) - Clear ItemTypeKeyword : heat-shrink-tubing Manufacturer : BuyHeatShrink Material : Plastic PartNumber : HSTFE4-0375-CL ProductDescription : BuyHeatShrink 4:1 PTFE Heat Shrink Tubing - PTFE heat shrink tubing has a very high continuous use temperature (260°C), and outstanding chemical resistance. It is available in 2:1 and 4:1 shrink ratios, and meets or exceed the most stringent commercial (UL VW-1, UL 910, NFPA262) and military standards (AMS-DTL-23053/12). While it is the best of the entire fluoropolymer heat shrink tubing family, PTFE is also the most difficult to shrink due to its extremely high shrinking temperature (325-340°C). A heat gun or a welding torch can be used, but it is not recommended due to the tendency for the material to have localized over-heating or under-heating. It is extremely important when shrinking PTFE that the material is uniformly heated to provide even shrinking. We recommend you use a controlled temperature oven; although this is obviously impractical for large harnesses or areas adjacent to temperature sensitive components. ProductSiteLaunchDate : 2015-07-29T23:05:44.135Z UnspscCode : 40183006