Heat shrink tubing with an adhesive or glue coating provides a more lasting enclosure for heavier or more essential wires. Because the material is thicker and less flexible, wires and cables are better protected. If necessary, standard heat shrink can be removed, while adhesive laced heat shrink cannot. Buy Heat shrinkable tubes (Shrink Ratio 3:1) Adhesive lined online in UKthat is used in electrical work to insulate wires. Kafton UK offers Heat Shrink Tubing.