Heat Shrink Dual Wall Tubing for Automotive Brake Oil Line Protection
Category: Heat Shrink Busbar Sleeving
Material: Outer: crosslinked modified semi-rigid polyolefin resin
Inner layer: hot melt adhesive
Shrink ratio: 1.5: 1
Features:
• Excellent scratch resistance;
• At low temperatures good flexibility;
• meet automotive standards;
• excellent oil and chemical resistance;
• continuous use temperature: -35 ℃ ~ + 125 ℃
• Minimum shrink temperature: 110 ℃.
Applications: CB-2000 casing with a metal pipe industry standard for the design blueprint, focusing on the protection of automotive brake hoses and fuel pipes. Avoid tubing from mechanical damage and moisture corrosion in harsh conditions. Each size CB- 2000 casing for metal tubing certain rules. The product is rapid contraction in more than 115 ℃, once installed, the tubing can be bent shape. Through the National Automobile Quality Supervision and Testing Center of.
| Specifications | Standard pipe diameter （ m m ） | Finished inner diameter （ m m ） | Wall thickness (completely closed on the steel surface) |
| CB2000-5 | 3.50 | ≥5.0 | 1.0 |
| CB2000-6 | 4.76 | ≥6.0 | 1.0 |
| CB2000-8 | 6.35 | ≥8.0 | 1.0 |
| CB2000-10 | 8.00 | ≥10.0 | 1.0 |
| CB2000-15 | 10.00 | ≥15.0 | 1.0 |
| CB2000-14 | 4.85 | ≥14.0 | 1.0 |
Standard color: black Note: Please refer to the following pipe diameter order, other sizes can be customized.
| Performance | Test method | Indicator | Values |
| Longitudinal length change rate | 0-10% | -2% | |
| Eccentricity | ASTM D2671 | 20% | 10% |
| Tensile strength | ASTM D2671 | ≥12MPa | 14MPa |
| Elongation at break | ASTM D2671 | 400% | 460% |
| Hot air aging | 158.0℃±1.0℃，168Hours | - | - |
| Tensile strength after aging | ASTM D2671 | ≥12MPa | 13MPa |
| Ultimate elongation after aging | ASTM D2671 | 270% | 410% |
| Deformation resistance | ASTM D746 | ≥50% | 82% |
| Impact resistance | ASTM D746 | -35℃，No cracking | No cracking |
| Anti-shock dart | ASTM D746 | No cracking | No cracking |
| Low temperature performance | ASTM D746 -35℃，1Hours | No cracking | No cracking |
| Low temperature cracking | ASTM D1693 50℃，24Hours | No cracking | No cracking |
| Solvent Resistance | ASTM D2671/25℃/72h | ||
| Sulfuric acid (specific gravity: 1.28) | No cracking | ||
| Sodium hydroxide (0.1N) | No cracking | ||
| Automotive brake fluid | No cracking | ||
| Unleaded gasoline | No cracking |
