4:1 Heat Shrink Tubing,Black Heat Shrink Sleeving,Adhesive-Lined Heat Shrink Tube,Waterproof Heat Shrinkable Tube,for Electrical Insulation,Wrap Cable,Repairs,Wire Connectors(12mm x 2m)

Package Contents: You will receive one black heat-shrink tubing, with an initial diameter of approximately 12mm and a total length of about 2 metres. You may easily cut it to your desired length as required. Premium Materials: The heat-shrink tubing is manufactured from high-quality polyethylene. Its outer wall features a thickened treatment, offering waterproofing and corrosion resistance, alongside insulation and flame-retardant properties. The surface is smooth, thick, and uniformly consistent, ensuring durability and abrasion resistance. The inner layer comprises a thermoplastic adhesive with strong tackiness, providing a tight seal that resists loosening. 4:1 Shrink Ratio: The tubing exhibits a 4:1 shrink ratio. Upon heating and shrinking, its diameter reduces to one-quarter of its original size, enabling superior sealing of wires and cables while providing effective protection and cushioning. Ease of Use: The initial shrink temperature is approximately 70°C to 80°C, with full shrinkage occurring at around 125°C. Cut the tubing to the required length, position it over the target area, then use a heat gun, industrial oven, or lighter to heat and shrink it. The shrinkage process is rapid, typically completing within seconds, offering convenience and efficiency. (Recommended temperature range: -45°C to 125°C) Versatile Applications: Black heat-shrink tubing is suitable for wire protection and maintenance in applications such as electrical cable connections, wire end processing, and electrical insulation. It finds extensive use in scenarios requiring sealed insulation, providing secure protection. It can also be employed to repair small cylindrical objects like broken spectacle frames.