Quadrios Heat Shrink Heatshrink + adhesive 616179 - Quadrios 23CA181, The Quadrios 23CA181 is a black heatshrink with adhesive, measuring 19.1 mm in diameter and offering a 3:1 shrinkage ratio over 5 metres. It is ideal for providing a secure and insulated seal on wiring and electrical connections. Typical applications include protecting cables from environmental factors and preventing electrical shorts. Quadrios 23CA181 Heatshrink Adhesive Black 19.1mm 3:1 5m Waterproof