3M Heat Shrink Tubing MW is color coded for quick and easy identification of the wire. It provides a skintight fit and strain relief sealing of electrical connections, wire splices and components. This heat shrinkable tubing is co extruded and cross linked to offer a meltable inner wall. When the tubing cools down, it forms an insulating barrier to chemicals and solvents. It withstands temperatures of 67 to 230 degrees F ( 55 to 110 degrees C). UL Listed, SAE SAE AS23053/4, Class 1, CSA Certified and RoHS 2011/65/EU Compliant.