The 4:1 shrink ratio Dual Wall Heat Shrink Tubing is designed for large-diameter cable insulation, offering secure, uniform sealing for varying cable sizes. It is ideal for power cable terminations, splices, and industrial wiring, providing high-strength insulation and mechanical protection.
The polyolefin outer shell ensures abrasion resistance, impact protection, and UV shielding, while the inner adhesive lining creates a moisture-resistant, leak-proof bond, preventing failures in humid or submerged environments.
| Size | Expanded | After Recovery | Standard Package | |||
|---|---|---|---|---|---|---|
| Inch | mm | Inner Diameter Min(mm) | Inner Diameter Max(mm) | Total Wall Thickness (mm) | Adhesive Thickness (mm) | Spool Length M/spool |
| 5/32 | 4 | 4 | 1 | 1.05±0.30 | 0.50±0.30 | 200 |
| 1/4 | 6 | 6 | 1.5 | 1.15±0.30 | 0.50±0.30 | 100 |
| 5/16 | 8 | 8 | 2 | 1.55±0.30 | 0.60±0.30 | 50 |
| 1 /2 | 12 | 12 | 3 | 1.75±0.30 | 0.60±0.30 | 1.22 OR 25M/Roll |
| 5 /8 | 16 | 16 | 4 | 2.00±0.30 | 0.70±0.30 | 1.22 OR 25M/Roll |
| 25/32 | 20 | 20 | 5 | 2.30±0.40 | 0.70±0.30 | 1.22 OR 25M/Roll |
| 1 | 24 | 24 | 6 | 2.60±0.40 | 0.75±0.30 | 1.22 OR 25M/Roll |
| 1-1/4 | 32 | 32 | 8 | 3.00±0.50 | 0.90±0.30 | 1.22 OR 25M/Roll |
| 2 | 52 | 52 | 13 | 3.35±0.50 | 0.95±0.30 | 1.22 OR 25M/Roll |
| Property | Test method | Standard | Typical Performance |
|---|---|---|---|
| Tensile strength(Mpa) | ASTM D2671 | ≥ 10.4 | 12.68 |
| Elongation(%) | ASTM D2671 | ≥ 200 | 448.72 |
| Tensile strength after aging(Mpa) | UL224 158 ℃X168hr | ≥ 7.3 | 11.45 |
| Elongation after aging (%) | UL224 158 ℃X168hr | ≥ 100 | 398.41 |
| Flammability | ASTM D 2671B | Pass | Pass |
| Dielectric strength(kV/mm) | IEC 60243 | ≥ 15 | 18.25 |
| Volume resistivity( Ω.cm) | IEC 60093 | ≥ 1X1014 | 1.86 X1014 |
| Adhesive | |||
| Property | Test method | Standard | |
| Water Absorption | ASTM D570 | ＜ 0.2% | |
| Softening Point( ℃) | ASTM E28 | 95±5 | |
| Strength of pearing (PE) | ASTM D 1000 | 120N/25mm | |
| Strength of pearing (AL) | ASTM D 1000 | 80N/25mm | |
The dual wall adhesive-lined polyolefin heat shrink tube (Ratio 4:1) is ideal for insulating large-diameter cables, offering a strong, uniform seal in power terminations, splices, and industrial wiring. Its thick outer layer resists abrasion and UV, while the adhesive lining ensures a watertight bond. The dual wall adhesive-lined polyolefin heat shrink tube (Ratio 4:1) is perfect for high-humidity and submerged environments, delivering reliable insulation and protection.
This heat shrink tubing is designed for electrical applications, including automotive and marine wire harnesses, wire splices, breakouts, and connector-to-cable transitions.
