Feature:1. One simple step to connect wires, solder, insulate and seal, the outside is polyolefin tube, the inside is hot melt adhesive2. Welding and sealing, come with advanced waterproof function, polyolefin heat shrinkable butt connector improves the pull-out strength3. Ideal for outdoor applications such as electronics, railways, ships, automobiles, motorcycles, aerospace, etc.4. Specially designed for wire welding, mechanical protection of solder joints and one-time waterproofing5. Transparent heat shrinkable tubing allows accurate visual inspection and greater tensile strengthSpecification:Item Type: Heat Shrink Butt ConnectorsMaterial: Polyolefin + hot melt adhesiveColor: Red/blue/white/yellowApplicable Wire Diameter: 26-10AWGRange of Working Temperature: Working Temperature: -55℃~125℃Full Shrinkage Temperature: 130℃Solder Melting Temperature: 125℃Full Melting Temperature of Solder: 150℃ Package List:50 x Red Heat Shrink Butt Connectors50 x Blue Heat Shrink Butt Connectors40 x White Heat Shrink Butt Connectors10 x Yellow Heat Shrink Butt Connectors