Solder SleeveA solder sleeve is a type of heat-shrinkable tubing that is used to create a watertight and mechanically secure connection between two wires. The solder sleeve is placed over the wires, and when heated, the sleeve shrinks to create a tight fit around the wires. The inside of the sleeve is coated with a layer of solder, which melts and flows around the wires when the sleeve is heated, creating a strong and reliable electrical connection. Solder sleeves are commonly used in a variety of applications, including automotive wiring, marine wiring, and industrial equipment. They provide a convenient and effective way to create secure wire connections without the need for traditional soldering tools and techniques.