Because heat shrinkable tubes are often used in the electronic and electrical fields, there is no doubt about the insulation performance of heat shrinkable tubes. Depending on the environment in which they are used, they can be divided into five withstand voltage levels: 300V, 600V, 1KV, 10KV, and 35KV. You can choose heat shrinkable tubes with corresponding insulation levels according to your own product usage environment. For example, for low-voltage products such as household appliances and other electronic components, you can choose insulating heat shrinkable tubes with a voltage of 600V and below. The busbar copper bar insulation of high-voltage industrial electrical cabinets generally uses 10KV or 35KV high-voltage insulating heat shrinkable tubes.

    If the heat shrink tube needs to be waterproof, you must use a glued heat shrink tube to achieve the purpose of waterproofing. Ordinary heat shrink tubes are not waterproof, so in environments that need to be waterproof and moisture-proof, most people will use glued heat shrink tubes. The inner wall of the heat shrink tube contains a layer of hot melt adhesive. The hot melt adhesive melts when exposed to heat, making the heat shrink tube and the product tightly bonded together to achieve sealing and waterproofing.

    If insulation and waterproofing are required, you can only choose heat-shrinkable tubes with glue. The insulation voltage level can only be 1KV and below. For example, the sealed waterproof insulation of water pumps, outdoor cables and buried cable joints will all use glued heat-shrinkable tubes. Shrinkable tubing is used for sealing and insulation. Glued heat shrinkable tubing is an important waterproof insulating auxiliary material with excellent insulation performance. The waterproof level can reach IP67. Generally, glued heat shrinkable tubing is used to connect cables and wires in environments that require waterproofing and moisture-proofing. As a waterproof and moisture-proof material.

    According to the application area and wall thickness, adhesive heat shrinkable tubes are divided into four types: adhesive double wall heat shrinkable tubes, adhesive medium wall heat shrinkable tubes, adhesive thick wall heat shrinkable tubes and high shrinkage ratio 6 times heat shrinkable tubes. They are all heat shrinkable tubes with waterproof properties. Double-wall heat shrink tubing is often used in the electronic and electrical industry for waterproof insulation of wires and terminal blocks. Medium-thick wall heat shrinkable tubes are often used for waterproofing and moisture-proofing of thicker cables and for the anti-corrosion and waterproofing of various metal pipes.