3M Heat Shrink Cable Sleeve MDT is a flexible, medium wall tubing that provides abrasion, corrosion and chemical resistance. This sleeve has a 3:1 shrink ratio that offers primary electrical insulation for 1 kV rated applications. The flame retardant polyolefin construction features a thermoplastic sealant to provide moisture seal protection.3M Heat Shrink Cable Sleeve MDT isa flame retardant sleeve offers reliable performance for electrical splices, connections and terminations. The factory applied, heat activated, thermoplastic sealant acts as a barrier against adverse environmental conditions. It is fast shrinking for easy handling and installation while maintaining maximum operating reliability and system protection. It withstands temperatures of 67 to 230 degrees F ( 55 to 110 degrees C). ABS, SAE AS23053/15, Class 2 Certified and RoHS 2011/65/EU Compliant.