ELECFUN Waterproof Heat Shrink Tubing Kit 365 pcs, 3:1 Dual Wall Tube - Adhesive Lined - Marine and Industrial Heat-shrink Tubing Black/Red, 7 Sizes.

MarineIndustrial Heat Shrink Tubing Kit Looking to fix a damaged wire, seal out moisture, or provide enhanced strain relief. ELECFUN waterproof heat shrink tubing is a great solution, which used in automotive, marine, DIY, and home electrical wiring projects. Such as: 1. Electrical insulation (wire repairs, insulating electrical terminals wires, protecting charging cables, insulating solder joints2. Environmental seal to protect from moisture, UV, fuel, and chemicals3. Strain relief for electrical terminals4. Grouping loose wires (usually in wire end5. Creating thermal insulation for heatsensitive components6. Protecting surfaces against abrasion, peeling, and denting7. 3:1 Shrink Ratio Shrink Tube When heating with a heat gun or others, the wire heat shrink tubing will recover to 1/3 of its original diameter. Its high recovery ratio makes it possible to repair most damaged cable jackets without removing connectors. Thus, compared to 2:1 shrink ratio tubing, the 3:1 shrink ratio tubing can be used in significantly more applications. Additionally, 3:1 marine heatshrink tubing shrinks around wires and terminals more tightly, eliminating any air gaps. Heat Activated Adhesive Lined Our waterproof heat shrink tubing has an internal adhesive layer. When heating, shrink tubing recovers and the internal adhesive layer melts. A small fillet of clear adhesive (about 1 mm widebecomes visible at the end of the heated tubing. When cooled down, it forms a rigid seal. Heatactivated glue strongly adheres to wires, terminals, or any other surfaces. When adhesive flows, it pushes the air out and fills any gaps between the wire and the tubing, which makes the connection waterproof. For best results, we recommend using a heat gun. Dual Wall Shrink Tubing Dual wall marineindustrial grade heat shrink tubing provides better rigidity and abrasion.