| Property | Test method | Standard Value |
|---|---|---|
| Tensile Strength | ASTM-D-638 | ≥10MPa |
| Elongation at Break | ASTM-D-638 | ≥350% |
| Tensile Strength Variation After Heat Aging（130℃x168h） | ASTM-D-5510 | ≤±20% |
| Elongation at Break Variation After Heat Aging（130℃x168h） | ASTM-D-5510 | ≤±20% |
| Volume Resistivity | IEC 60093 | ≥1×1014Ω.cm |
| Dielectric Strength | IEC 60243 | ≥20kV/mm |
| Dielectric Constant | IEC 60250 | ≤4 |
| Brittle Temperature | ISO 974 | -40℃ |
| Hardness（Shore A） | ISO 868 | ≥80 |
| Heat Shock | 160℃，4h | No Crack |
| Longitudinal Shrinkage | ASTM-D-2671 | ≤10% |
| Eccentricity | ASTM-D-2671 | ≤30% |
| Property | Test method | Standard Value |
|---|---|---|
| Tensile Strength | ASTM-D-638 | ≥10MPa |
| Elongation at Break | ASTM-D-638 | ≥350% |
| Tensile Strength Variation After Heat Aging（130℃x168h） | ASTM-D-5510 | ≤±20% |
| Elongation at Break Variation After Heat Aging（130℃x168h） | ASTM-D-5510 | ≤±20% |
| Volume Resistivity | IEC 60093 | ≥1×1014Ω.cm |
| Brittle Temperature | ISO 974 | -40℃ |
| Hardness（Shore A） | ISO 868 | ≥80 |
| Heat Shock | 160℃，4h | No Crack |
| Longitudinal Shrinkage | ASTM-D-2671 | ≤10% |
| Eccentricity | ASTM-D-2671 | ≤30% |
| Spec. | As Supplied/mm | After Recovered/mm | Standard Length/mm | ||
|---|---|---|---|---|---|
| Inner Diameter Min | Wall Thickness (±20%) | Inner Diameter Max | Wall Thickness (±10%) | ||
| WDWT-30/12 | 30 | 2.8 | 12 | 5.8 | 300-1000 |
| WDWT-35/13 | 35 | 2.5 | 13 | 5.8 | 300-1000 |
| WDWT-45/17 | 45 | 2.3 | 17 | 5.8 | 300-1000 |
| WDWT-55/21 | 55 | 2.2 | 21 | 5.8 | 300-1000 |
| WDWT-65/26 | 65 | 2.3 | 26 | 5.8 | 300-1000 |
| WDWT-85/30 | 85 | 2.7 | 30 | 7.2 | 300-1000 |
| WDWT-100/38 | 100 | 2.9 | 38 | 7.2 | 300-1000 |
| WDWT-120/45 | 120 | 2.9 | 45 | 7.2 | 300-1000 |
Dual Wall Heat Shrink Tube provides superior insulation, mechanical protection, and watertight sealing for cable joints and splices. With a durable polyolefin outer layer and adhesive inner lining, the Dual Wall Heat Shrink Tube ensures strong resistance to UV, moisture, and corrosion—ideal for power networks, transformers, and industrial applications requiring high dielectric performance.
Features –
The Dual Wall Heat Shrink Tube features an inner red insulation material and an outer black semi-conductive layer, providing enhanced electrical protection and reliable stress control.
Heat shrink tubing is used for insulation, sealing, and mechanical protection in electrical applications like automotive harnesses, wire splices, cable joints, and marine installations
Dual wall adhesive-lined tubes
High-temperature resistant types
Halogen-free tubes
Military-grade and flame-retardant variants
Each is designed for different sealing, environmental, or safety standards
Shrink ratios of 2:1, 3:1, and 4:1
Operating temperatures from -45°C to 125°C
Strong adhesive bonding to plastics, metals, and rubber
Waterproof, corrosion-resistant, and flame retardant
Axis heat shrink tubes are available in sizes from 1.6 mm to 125 mm diameter (after recovery), with wall thicknesses ranging from 0.6 mm to over 3.6 mm, including standard spool lengths (25 m/roll or 1.22 m cut)
Dielectric strength: ≥15 kV/mm
Volume resistivity: ≥1×10¹⁴ Ω·cm
Tensile strength: ≥10.4 MPa
Water absorption: ≤0.2%
Flammability: Pass UL & IEC standards
