Grote Heat Shrink Tubing, Dual Wall, Adhesive Lined Inner, Semi-Rigid Outer Wall, Black, Cross Linked Polyolefin, 4:1 Shrink Ratio, 3/16 to 1/4 in

Designed to meet automotive industry requirements for environmental sealing and electrical insulation, especially for under-the-hood environments. This dual wall tubing features a semi-rigid, radiation cross-linked polyolefin outer jacket that is flame retardant and provides strain relief and abrasion protection. The inner layer is a unique hot-melt adhesive designed to adhere to all major automotive wire and terminal insulation, forming an effective barrier against fluids and moisture to protect harnesses from corrosion and water wicking across a wide temperature range. This is an OEM approved product.