DWL-2 Adhesive-Lined Dual-Wall Heat Shrink Tubing (3:1 / 4:1)
DWL-2 has a polyolefin outer wall and a hot-melt adhesive inner layer, with 3:1 and 4:1 shrink ratios and a -55 to 125 °C service range. The adhesive melts during shrinkage to seal connectors, splices and cable joints against water and moisture.
3:1 / 4:1
Shrink ratio
Polyolefin outer wall with hot-melt adhesive inner layer
Material
600V
Withstand voltage
Specifications
Key specifications
| Part number | DWL-2 |
|---|---|
| Product type | Adhesive-linedheat shrink tubing |
| Size range | ID 1.6~100mm |
| Shrink ratio | 3:1 / 4:1 |
| Material | Polyolefin outer wall with hot-melt adhesive inner layer |
| Withstand voltage | 600V |
Dimensions
Standard sizes
| Spec Ø (mm) | Expanded ID (mm) | Expanded wall (mm) | Fully recovered max ID (mm) | Fully recovered wall (mm) |
|---|---|---|---|---|
| Φ1.6 | 2.20±0.30 | 0.30±0.08 | ≤0.70 | 0.60±0.12 |
| Φ2.4 | 3.00±0.40 | 0.35±0.08 | ≤0.80 | 0.70±0.12 |
| Φ3.2 | 4.00±0.40 | 0.40±0.09 | ≤1.05 | 1.00±0.15 |
| Φ4.8 | 5.50±0.40 | 0.45±0.11 | ≤1.60 | 1.10±0.15 |
| Φ6.4 | 7.50±0.40 | 0.45±0.11 | ≤2.10 | 1.25±0.15 |
| Φ7.9 | 8.50±0.40 | 0.50±0.12 | ≤2.70 | 1.30±0.15 |
| Φ9.5 | 10.5±0.60 | 0.55±0.12 | ≤3.10 | 1.35±0.15 |
| Φ12.7 | 13.5±0.60 | 0.60±0.15 | ≤4.20 | 1.60±0.20 |
| Φ15.4 | 16.6±0.80 | 0.65±0.17 | ≤5.10 | 1.75±0.20 |
| Φ19.1 | 20.5±1.00 | 0.65±0.17 | ≤6.30 | 1.85±0.20 |
| Φ25.4 | 26.5±1.00 | 0.75±0.20 | ≤8.40 | 2.05±0.20 |
| Φ30 | 32.0±1.60 | 0.75±0.20 | ≤10.0 | 2.10±0.20 |
| Φ39 | 41.0±1.60 | 0.85±0.25 | ≤13.0 | 2.55±0.20 |
| Φ50.8 | 53.0±2.00 | 0.85±0.25 | ≤17.2 | 2.75±0.25 |
Performance
Typical test data
| Property | Requirement | Test method | Typical value |
|---|---|---|---|
| Longitudinal shrinkage (200±5°C×3min) | ±10% | ASTM D 2671 | ±7% |
| Eccentricity | ≤35% | ASTM D 2671 | 15% |
| Tensile strength | ≥9.0 MPa | ASTM D 638 | 10 MPa |
| Elongation at break | ≥250% | ASTM D 638 | 500% |
| Elongation after ageing (158°C×168h) | ≥100% | ASTM D 638 | 300% |
| Cold bend (-55°C×4h) | No cracks | ASTM D 2671 | Pass |
| Volume resistivity | ≥10¹² Ω·cm | ASTM D 876 | 10¹⁴ Ω·cm |
Applications
Where it is used
- Automotive harness joints
- Electronic connectors and terminals
- Telecom equipment and base stations
- Outdoor lighting and sensors
- Cable repair and splicing
Next step
Request a datasheet, sample or quote
Send the size range, operating temperature and delivery requirement. We will reply with the recommended construction, wall thickness, shrink ratio and a sample plan.