Product Temperature SpecificationsMinimum Melting Temperature: 138CMinimum Compression Temperature: 80COperating Temperature: -55 -125 Compression temperature> 160Product DetailsBrand: MaidodoMaterial: PE, SolderProduct Name: Heat Shrink Solder SleeveMax Voltage: 600VMaterial PolyolefinShrinkage: 2:01Dielectric strength: 1KWProtection level: IP67Package includes200 x red shrink connectors180 x connectors Blue Shrink Connectors 80 x White Shrink Connector 40 x Yellow Shrink Connector hot melt creates a long lasting waterproof seal between wire and connector. Waterproof connectors would prevent corrosion even in the most humid environments. Feature: The transparent sleeve of the connectors butts butt provides visual inspection. --- You can control the working temperature and the heating time. Easy identification: different colors for different sizes of connectors Can be perfectly used in marine and automotive applications.Feature: Solder and seal connectors allow you to use them in hard-to-reach environments or in limited spaces. Since no crimping is required, you simply position the stripped wires into the solder sleeve and apply heat to complete the connection. An easy one-step connection of wires, insulated and sealed. Feature: Insulation Protection: Used to seal wire connections, prevent electrical leakage and keep circuits away from rodent nuisance br/> The solder ring, when heated, melts and flows into the wire connection, effectively preventing the connection from breaking.How to use:1.Do pass a wire through the tube of the butt connector of the appropriate size, properly connect and process the wires, and move the connector so that the solder ring section is aligned with the wire connection;2.Heat both ends of the tube with a heat gun to make them shrink. Waterproof rings when heated turn into waterproof rings;How to use:3. Heat the solder ring with a heat gun until the ring melts and penetrates the wire connection;Warning: Heat the section of heat shrink tubing until it shrinks tightly around sons; excessive heating will completely melt the heat shrink tubing. The solder ring must be thoroughly heated to penetrate the wire connection.------Provide you with qualified terminals and meet your needs in a variety of wiring projects Whether you're working on your boat, vehicle, home, or science project, our heat-shrink solder and seal connectors will ensure a solid solder, increased current flow, and leak-proof connections every time~