3M Heat Shrink Tubing NST provides high abrasion and cut through resistance, making it ideal for highly flexible covering applications. This tubing has a 2:1 shrink ratio and provides insulation for 600V rated applications. The flexible modified chlorinated polyolefin construction offers superior resistance to heat and hydrocarbon oils.3M Heat Shrink Tubing NST has wide operating temperature range and superior mechanical properties. The tubing ist an ideal choice for jacketing cable harnesses. It's also well suited for military aircraft or vehicle applications and covering hydraulic couplings, as well as the fabrication and repair of flexible harnesses and wire bundles. Using hot stamp or print wheel methods, this tubing is easily markable. It withstands temperatures of 94 to 250 degrees F ( 70 to 121 degrees C). UL Listed, SAE AS23053/1 Class 1,2, AMS R46846 and AMS 3623 Certified.