The big benefit by using heat shrink tubing is that you have ordered it for your job. Therefore, you have no need to be afraid that it is a waste of money. What you mainly care about is that how to install it. Heat shrink tubing (or, commonly, heat shrink) is a tube which shrinks in diameter when heated. Its diameter and thickness can vary, and there are three main categories, thin-wall, medium-wall and thick-wall tube. It is rated by its expansion ratio, a comparative of the differences in expansion and recovery rate. Heat shrink tubing is used to insulate wires offering abrasion resistance and environmental protection for conductors, connections, joints and terminals in electrical engineering. It can also be used to repair wires or bundle them together, to protect wires or small parts from minor abrasion, and to create cable entry seals, offering environmental sealing protection between bulkheads and adding sealability to electrical junction boxes.
The tubing supplied by Heat shrink tubing wholesalers is placed over the connection to be protected and then heated with an oven, hot air gun or similar tool. Convenient, but less effective, methods for shrinking the tube include a soldering iron (held in close proximity, but not touching the tube) or the heat from a lighter.