The specifications of heat shrink tubing mainly include the following aspects:
1. Specification range
The specifications of heat shrink tubing are usually expressed as "φ+number" in millimeters. The common specifications range from Φ3.0mm to Φ200mm, including:
Inner diameter before shrinkage: 3.5±0.2mm
Inner diameter after shrinkage: ≤1.5mm
Wall thickness: 0.225±0.06mm before shrinkage and 0.45±0.1mm after shrinkage.
2. Temperature characteristics
Complete shrinkage temperature: 125℃
Working temperature range: -55℃～125℃
Heat resistance grade: 125℃.
3. Shrinkage rate
Transverse shrinkage rate: ≥50%
Vertical shrinkage rate: ≤8%.
4. Electrical performance
Rated voltage: 600V.
5. Packaging and Color Packaging: Heat shrink tubing of different specifications has different packaging lengths, for example, Φ3.0mm-Φ4mm is 200 meters/reel, Φ5mm-Φ22mm is 100 meters/reel, and Φ25mm-Φ200mm is 25 meters/reel. Color: Common colors include black, red, yellow, green, blue, yellow-green double color, etc. Other colors can be customized. 6. Application Scope Heat shrink tubing is widely used in wire connection, solder joint protection, electronic device protection, metal surface protection, anti-rust and anti-corrosion treatment, and identification of wires and other products. 7. Special Specifications and Identification The specification selection of heat shrink tubing needs to pay attention to the inner diameter before and after shrinkage to ensure that it is larger than the wire diameter. For logo printing, heat shrink tubing of different specifications can be printed using special equipment, such as Suofang TP7, TP80A/86A, etc. The above information is a combination of multiple sources, covering the main specifications and models of heat shrink tubing and their characteristics.