127-Piece Heat Shrink Tubing Assortment Kit, 2:1 Polyolefin, Waterproof Seal for Electrical Wires

127-Piece Heat Shrink Tube Kit for Durable, Waterproof Cable Protection Overview This kit contains 127 black polyolefin heat shrink sleeves designed for reliable electrical insulation, strain relief, and waterproofing. Double-wall construction combines an abrasion-resistant outer layer with an adhesive inner layer that seals and secures connections after heat is applied. Key benefits - Protects and extends the life of wire joints and connectors by sealing against moisture, dirt, and abrasion. - Creates professional, strain-relieved connections quickly and easily with common heat sources. - Wide range of sizes covers most wiring and repair needs so you always have the right diameter on hand. - Durable polyolefin material performs across a broad temperature range and provides strong mechanical and electrical properties. What makes it stand out - 127 pieces in one pack for comprehensive coverage of small to medium cable diameters. - Double-wall design for both mechanical protection and a waterproof inner seal. - Shrink ratio 2:1 delivers tight, reliable fits on exposed connections. - Flat delivery format for easier cutting to length with a sharp knife. Features and performance - Material: Polyolefin outer and adhesive inner layer. - Shrink ratio: 2 to 1. - Total length: 6.4 meters of tubing combined. - Operating temperature range: -55 C to +125 C. - Tensile strength: 10.4 MPa. - Dielectric strength: 15 kV per mm. - Delivery format: supplied flat for cutting to required length. - Recommended cutting method: sharp knife. Sizes included - 30 pieces x 2.0 mm inner diameter x 40 mm length - 25 pieces x 2.5 mm inner diameter x 40 mm length - 20 pieces x 3.5 mm inner diameter x 40 mm length - 20 pieces x 5.0 mm inner diameter x 40 mm length - 16 pieces x 7.0 mm inner diameter x 80 mm length - 8 pieces x 10.0 mm inner diameter x 80 mm length Typical use scenarios - Automotive wiring repairs and bundle protection where heat shrink prevents corrosion and secures soldered joints. - Outdoor and marine electrical splices where waterproof sealing is needed to protect connections from moisture. - Home electronics and hobby projects for neat insulation of soldered joints, sensor leads, and cable transitions. Simple use instructions - Slide an appropriately sized tube over the connector or splice. - Apply heat evenly using a heat gun, lighter with care, or other suitable heat source until the tube closes tightly and the inner adhesive melts to seal. - Trim to length before or after shrinking as needed. Important safety notes - Keep away from open flame and high heat beyond recommended sources. - Contains small parts; keep out of reach of children under three years of age. Package contents One pack containing 127 black heat shrink tubes in the sizes listed above. This kit offers a practical, durable solution for insulating and sealing electrical connections across a wide range of applications.