3M HSR-3000 heat shrink tubing is colour coded for quick and easy wire identification. This gap-resistant, halogen-free tubing is used as shrinkable electrical insulation over cable splices or terminations. The tubing has a 3:1 expansion ratio, is mechanically tough, easy to mark and resists cold flow. It is ideal as a lightweight protective cover for cable harnesses, for labelling and bundling wires and for packaging components. It is temperature resistant from -55 to 135 °C and RoHS 2011/65/EU compliant.