3M™ Thin-Wall Heat Shrink Tubing EPS-300 offers environmental protection for electronic components, splices, wire bundles and harness breakouts. Tubing is UL safety-rated for electrical wiring and CSA recognized to meet regional standards. This tubing forms a skintight fit when heated due to its 3:1 shrink ratio. Wire protection withstands wide temperature ranges from -55 ºC (-67 ºF) to 110 ºC (230 ºF), with a shrinking temperature minimum of 121 ºC (250 ºF). Make wire classification and identification easy with color options black/red, white, yellow, and clear. 3M™ Thin-Wall Heat Shrink Tubing EPS-300 is made with flexible thermoplastic components that create a permanent, non-drying barrier. Protect automotive, truck and marine components with this thin-wall, flame-retardant, adhesive-lined tubing. Please note: Clear color tubing is not flame-retardant or UL Listed.