3M Heat Shrink Tubing EPS-300 is a dual wall tubing provides the advantage of an integral, adhesive lined construction. This flame retardant tubing with a 3:1 shrink ratio offers insulation for 600V rated applications. The flexible polyolefin construction features an internal layer of thermoplastic adhesive, which offers moisture seal protection in automotive and marine applications.3M Heat Shrink Tubing EPS-300 is color coded for quick and easy identification of the wire. It provides a skintight fit and strain relief protection for electronic components, wire splices, wire bundles and harness breakouts. This flame retardant tubing has a heat shrinkable outer wall that is irradiation cross linked for abrasion resistance and helps to maintain the high flow as well as good adhesion characteristics. When the tubing cools down, it forms a permanent, water resistant barrier. It withstands a wide temperature range of 67 to 230 degrees F ( 55 to 110 degrees C). UL Listed, CSA Certified and RoHS 2011/65/EU Compliant.