High-Shrink-Ratio Adhesive-Lined Polyolefin Heat Shrink Tubing
Basic Info
Basic Info.
4:1 shrink ratio allows for fewer sizes to cover numerous splice configurations and diameters.
The hot melt adhesive is made of polyamide PA material, with high temperature resistance (no dripping at 125 ℃), strong permeability, and strong sealing performance
Thick adhesive liner forms an effective barrier against fluids and moisture penetration.
Minimum shrink temperature: 70°C .
Continuous operating temperature: -45°C to 125°C .
Fully shrink temperature:125℃.
Standard color: black , clear (other colors can be customized).
Application:
Sealing waterproof, anti-corrosion, leakproof, multi-strand wire harness and insulation
Wire harness
Marine wire and cable
Metal pipe need to seal waterproof, moisture-proof, anti-corrosion sealing insulation, binding fixed
Technical Data
| Property | Test Method | Standard |
|---|---|---|
| Tensile Strength(MPa) | ASTM D2671 | ≥10.4 |
| Elongation(%) | ASTM D2671 | ≥200 |
| Tensile Strength after aging (MPa) | ASTM D 2671(158℃×168h) | ≥7.3 |
| Elongation after aging(%) | ASTM D 2671(158℃×168h) | ≥100 |
| Dielectric strength(kV/mm) | IEC 60243 | ≥15 |
| Volume resistivity(Ω.cm) | ASTM D876 | ≥1X1014 |
Adhesive
| Property | Test Method | Standard |
|---|---|---|
| Water Absorption | ASTM D570 | <0.2% |
| Sofening Point (°C) | ASTM E28 | 95±5 |
| Strength of peeling(PE) | ASTM D 1000 | 120N/25mm |
| Strength of peeling(AL) | ASTM D 1000 | 80N/25mm |
Dimensions
| Size | Expanded | After Recovery | ||
|---|---|---|---|---|
| mm | Inner Diameter Min(mm) | Inner Diameter Max(mm) | Total Wall Thickness(mm) | Adhesive Thickness(mm) |
| Φ4.00 | 4.00 | 0.95 | 1.40±0.30 | 0.70±0.20 |
| Φ5.75 | 5.75 | 1.27 | 1.70±0.30 | 0.80±0.20 |
| Φ7.40 | 7.40 | 1.65 | 2.00±0.30 | 0.95±0.20 |
| Φ10.80 | 10.80 | 2.00 | 2.30±0.40 | 1.10±0.20 |
| Φ12.00 | 12.00 | 2.41 | 2.45±0.40 | 1.20±0.20 |
| Φ14.00 | 14.00 | 3.50 | 2.50±0.40 | 1.20±0.30 |
| Φ17.78 | 17.80 | 4.20 | 2.60±0.40 | 1.35±0.30 |
*Wall thickness will be less if tubing recovery is restricted during shrinkage.
Advantages:
It consists of a double layer of cross-linked polyolefin and polyamide PA. The product has high shrinkage and wear resistance characteristics, and is widely used in high temperatureenvironments such as wiring harnesses inside automotive engine compartments, electrical connections to electronic equipment, and other occasions where sealing is required.