Since heat shrink tubing is often used in the electronic and electrical fields, its insulation performance is beyond doubt. According to different usage environments, it can be classified into five withstand voltage levels: 300V, 600V, 1KV, 10KV, and 35KV. You can choose the heat shrink tube with the corresponding insulation grade according to the usage environment of your own product. For example, for low-voltage products such as household appliances and electronic components, an insulation heat shrink tube with a voltage of 600V or less is sufficient. The busbar copper insulation of high-voltage industrial electrical cabinets is generally selected from 10KV or 35KV high-voltage insulated heat shrink tubes.
If heat shrink tubes need to be waterproof, adhesive heat shrink tubes must be used to achieve the waterproof purpose. Ordinary heat shrink tubes do not have waterproof performance. Therefore, in environments that require waterproofing and moisture-proofing, most people will use adhesive heat shrink tubes. That is, the inner wall of the heat shrink tube contains a layer of hot melt adhesive. The hot melt adhesive melts when heated, making the heat shrink tube and the product closely bonded together. So as to achieve the effect of sealing and waterproofing.
If both insulation and waterproofing are required, only adhesive heat shrink tubing can be chosen. The insulation voltage level can only reach 1KV or below. For example, the sealing, waterproofing and insulation of water pumps, outdoor cables and buried cable joints will all use adhesive heat shrink tubing for sealing and insulation. Adhesive heat shrink tubing is an important waterproof insulation auxiliary material with excellent insulation performance. The waterproof grade can reach IP67. Generally, in environments where waterproofing and moisture-proofing are required for cable and wire connection, adhesive heat shrink tubing is used as the material for waterproofing and moisture-proofing.
