Material:
Outer layer: irradiation crosslinking modified polyolefin
Inner layer: modified polyamide hot melt adhesive
Shrink ratio: 4:1
Features:
- Semi-hard, flame retarded
- Excellent mechanical, electric and chemical performance;
- Excellent sealing property;
- Continuous use temperature：-40℃~125℃;
- Shrinkage temperature ：100℃~150℃
Application: This product, designed according to the features of automobile wire harness, is semi-hard and transparent. It has excellent leak proofness, oil resistance and insulativity and conforms to the environmental requirements of RoHS. Meanwhile, it also has excellent mechanical property and thus has come into extensive use in the production of various automobile wire harnesses.
Introduction
| Item | Test Method | Indicator |
| Radial shrinkage ratio | UL224 | ≥50% |
| Longitudinal length change rate | UL224 | -10%~0 |
| Tensile Strength | ASTM D2671 | ≥10.4MPa |
| Breaking Elongation |
ASTM D2671 |
≥200% |
| Aging Test Of Hot Air | 158.0℃±1.0℃/168h | – |
| Tensile Strength After Aging | ASTM D2671 | ≥7.3MPa |
| Elongation At Break After Aging | ASTM D2671 | ≥100% |
| Cold shock (applicable to outer layer only) | ASTM D2671 | -40℃±2℃，No breakage |
| Breakdown strength | ASTM D2671 | ≥19.7kV/mm |
| Volume resistivity | ASTM D876 | ≥1.0×10¹² Ω· cm |
| Flame retardant | UL224 | 30s Self-extinguishing |
| Copper Corrosion | UL224 | 158℃，168h,by |
Specification
| Size | Dimension before shrinkage（mm） | Dimension after full contraction （mm） | |
|---|---|---|---|
| Minimum inner diameter | Minimum inner diameter | Total wall thickness | |
| 5.7 |
≥5.75
|
≤1.25
|
1.45±0.30
|
| 7.4 |
≥7.40
|
≤1.65
|
1.55±0.30
|
| 11.0 |
≥11.0
|
≤2.40
|
2.35±0.30
|
| 14.0 |
≥14.0
|
≤3.00
|
2.30±0.30
|
| 17.8 |
≥18.3
|
≤4.35
|
2.35±0.30
|