Nov 17 , 2024
Heat shrink tubing is a type of thermosensitive plastic pipe that shrinks to a certain proportion of its original size after heating, thus tightly wrapping around the covered object. This material is mainly used for the protection, insulation casing, waterproofing, corrosion resistance, and mechanical strength of the connection points of wires and cables.
According to the classification of flame retardant temperature, there are several types: 125 ℃ halogen-free flame retardant heat shrink tubing, 135 ℃ flame retardant heat shrink tubing, 150 ℃ flame retardant heat shrink tubing, and yellow green heat shrink tubing.
| Technology Index | ||
| Performance | Index | Test Method |
| Tensile strength | ≥10.4MPa | ASTM D 2671 |
| Elongation at break | ≥200% | ASTM D 2671 |
| Tensile strength after thermal aging | ≥7.3MPa | 158°CX168h |
| Elongation at break after thermal aging | ≥100% | 158°CX168h |
| Axial change rate | -5%-+ 5% | ASTM D 2671 |
| Flame retardancy | VW-1 | ASTM D 2671 C |
| Voltage withstand (rated voltage 600V) | 2500V.1min without breakdown | UL224 |
| Thermal shock | No cracks, no dripping | UL 224, 250°CX4h |
| Puncture strength (choose one from withstand voltage) | ≥15kV/mm | ASTM D 149 |
| Volume resistivity | ≥1014 ncm | IEC 60093 |
Specifications (AWG) | Supply inner diameter (mm) | Size after full reduction (mm) | Standard packaging Meters per plate | |
| internal diameter | wall thickness | |||
Φ0.5/0.35 | 0.7±0.2 | ≤0.35 | 0.33+0.10 | 400 |
| Φ0.6/0.40 | 0.9±0.2 | ≤0.40 | 0.33+0.10 | 200 |
| Φ0.8/0.50 | 1.1±0.2 | ≤0.50 | 0.33+0.10 | 200 |
| Φ1.0/0.65 | 1.5±0.2 | ≤0.65 | 0.36+0.10 | 200 |
| Φ1.5/0.85 | 2.0±0.2 | ≤0.85 | 0.36+0.10 | 200 |
| Φ2.0/1.0 | 2.5±0.2 | ≤1.00 | 0.45+0.10 | 200 |
| Φ2.5/1.30 | 3.0±0.2. | ≤1.30 | 0.45+0.10 | 200 |
| Φ3.0/1.50 | 3.5±0.2 | ≤1.50 | 0.45+0.10 | 200 |
| Φ3.5/1.80 | 4.0±0.2 | ≤1.80 | 0.45+0.10 | 200 |
| Φ4.0/2.00 | 4.5±0.2 | ≤2.00 | 0.45+0.10 | 200 |
| Φ4.5/2.30 | 5.0±0.2 | ≤2.30 | 0.45+0.10 | 100 |
| Φ5.0/2.50 | 5.5±0.2 | ≤2.50 | 0.56+0.10 | 100 |
| Φ5.5/0.275 | 6.0±0.2 | ≤2.75 | 0.56+0.10 | 100 |
| Φ6.0/3.00 | 6.5±0.2 | ≤3.00 | 0.56+0.10 | 100 |
| Φ7.0/3.5 | 7.5±0.3 | ≤3.50 | 0.56+0.10 | 100 |
| Φ8.0/4.00 | 8.5±0.3 | ≤4.00 | 0.56+0.10 | 100 |
| Φ9.0/4.50 | 9.5±0.3 | ≤4.50 | 0.56+0.10 | 100 |
| Φ10/5.00 | 10.5±0.3 | ≤5.00 | 0.56+0.10 | 100 |
| Φ11/5.50 | 11.5±0.3 | ≤5.50 | 0.56+0.10 | 100 |
| Φ12/6.00 | 12.5±0.3 | ≤6.00 | 0.56+0.10 | 100 |
| Φ13/6.50 | 13.5±0.3 | ≤6.50 | 0.70+0.10 | 100 |
| Φ14/7.00 | 14.5±0.3 | ≤7.00 | 0.70+0.10 | 100 |
| Φ15/7.50 | 15.5±0.4 | ≤7.50 | 0.70+0.10 | 100 |
| Φ16/8.00 | 16.5±0.4 | ≤8.00 | 0.70+0.10 | 100 |
| Φ17/8.50 | 17.5±0.4 | ≤8.50 | 0.70+0.10 | 100 |
| Φ18/9.00 | 19.0±0.5 | ≤9.00 | 0.70+0.10 | 100 |
| Φ20/10.0 | 22.0±0.5 | ≤10.0 | 0.80+0.15 | 100 |
| Φ22/11.0 | 24.0±0.5 | ≤11.0 | 0.80+0.15 | 100 |
| Φ25/12.5 | 26.0±0.5 | ≤12.5 | 0.90+0.15 | 50 |
| Φ28/14.0 | 29.0±0.5 | ≤14.0 | 0.90+0.15 | 50 |
| Φ30/15.0 | 31 5±1.0 | ≤15.0 | 1.00+0.15 | 50 |
| Φ35/17.5 | 36.5±1.0 | ≤17.5 | 1.00+0.15 | 50 |
| Φ40/20.0 | 41.5±1.0 | ≤20.0 | 1.00+0.15 | 50 |
| Φ50/25.0 | ≥50 | ≤25.0 | 1.10+0.15 | 25 |
| Φ60/30.0 | ≥60 | ≤30.0 | 1.20+0.15 | 25 |
| Φ70/35.0 | ≥70 | ≤35.0 | 1.30+0.15 | 25 |
| Φ80/40.0 | ≥80 | ≤40.0 | 1.30+0.20 | 25 |
| Φ90/45.0 | ≥90 | ≤45.0 | 1.30+0.20 | 25 |
| Φ100/50.0 | ≥100 | ≤50.0 | 1.30+0.20 | 25 |
| Φ120/60.0 | ≥120 | ≤60.0 | 1.30+0.20 | 25 |
| Φ150/75.0 | ≥150 | ≤75.0 | 1.30+0.20 | 25 |
| Φ180/90.0 | ≥180 | ≤90.0 | 1.30+0.20 | 25 |
| Φ210/105 | ≥210 | ≤105 | 1.30+0.30 | 25 |
| Φ230/115 | ≥230 | ≤115 | 1.30+0.30 | 25 |
| Φ250/125 | ≥250 | ≤125 | 1.30+0.30 | 25 |
| Φ300/150 | ≥300 | ≤150 | 1.30+0.30 | 25 |
1. Heat shrinkage
Adaptability: Heat shrink tubing can automatically shrink after heating and tightly wrap around objects of various shapes and sizes, providing excellent insulation protection.
Heat shrink ratio: Heat shrink tubing has different heat shrink ratios, commonly including 2:1, 3:1, 4:1, etc,
2. Insulation performance
Electrical insulation: Heat shrink tubing provides excellent electrical insulation protection to prevent short circuits or leakage between enamelled wire and cables.
3. Mechanical protection
Wear resistance: Heat shrink tubing can protect wires and cables from wear, cutting, or other physical damage.
Enhanced strength: The shrunken sleeve can increase the mechanical strength of the protected object, reducing the possibility of wear and tear.
4. Waterproof and moisture-proof: Some heat shrink sleeves are coated with hot melt adhesive on the inner wall, which can achieve sealing effect after heating, effectively preventing water and pollutants from penetrating.
5. Diverse colors: Heat shrink tubing provides multiple colors for easy identification and classification of wires and cables.
