CYG-DWT(3000) Semi-regid Heat Shrink Dual Wall Tubing
Category: Heat Shrink Busbar Sleeving
Material: Outer: crosslinked modified semi-rigid polyolefin resin
Inner layer: hot melt adhesive
Shrink ratio: 4: 1
Features:
• a higher shrinkage rate, the greater the probability range for the quilt was diameter containing;
• flame retardant, in line with European Union RoSH directive does not contain any halogen, more environmentally friendly, it is to upgrade the existing halogen flame retardant automotive replacement of oil products;
• semi-rigid polyolefin material, higher mechanical properties and wear resistance, perform wiring harness connector and terminal stress solution at the excellent abrasion resistance and protection;
• thicker layer of hot-melt adhesive, having excellent sealing performance, effectively resist into the immersion fluid and moisture;
• Excellent oil resistance, especially for use of the car interior environment;
• working temperature from -40 ℃ to 135 ℃, suitable for a wider temperature range (starting shrink temperature: 110 ℃, full recovery temperature: 135 ℃).
Applications: This product is designed for automotive wire harness and piping requirements and specific design, can be widely used in a variety of automotive wiring harness insulation seal, stress and other lines and terminals at the local indirect continued release and anti-wear protection properties.
Specifications | Inner diameter | Wall thickness after complete shrinkage | ||||||||
Minimum inner diameter before shrinkage | Maximum inner diameter after shrinkage | Thickness of shuck | Thickness of hose lining | Total wall thickness | ||||||
mm | Inch sizes | mm | Inch sizes | mm | Inch sizes | mm | Inch sizes | mm | Inch sizes | |
CB-3000-1 | 5.72 | 0.225 | 1.27 | 0.050 | 0.64 | 0.025 | 0.56 | 0.022 | 1.20 | 0.047 |
CB-3000-2 | 7.44 | 0.293 | 1.65 | 0.065 | 0.76 | 0.030 | 0.76 | 0.030 | 1.52 | 0.060 |
CB-3000-3 | 10.85 | 0.427 | 2.41 | 0.095 | 0.89 | 0.035 | 1.02 | 0.040 | 1.91 | 0.075 |
CB-3000-4 | 17.78 | 0.700 | 4.45 | 0.175 | 1.04 | 0.041 | 1.37 | 0.054 | 2.41 | 0.095 |
Item | Test method | Indicator | Values |
Longitudinal length change rate | ASTM D2671 | 0-10% | 5% |
Tensile strength | ASTM D2671 | ≥10.3MPa | 18.87MPa |
Elongation at break | ASTM D4.3.1.2 | ≥250% | 330% |
Thermal aging | ASTM D2671 | ≥137MPa | 370MPa |
Hot shock | 250±3℃,4h | Without dripping, flowing or crack | Qualified |
Cut continuity | ASTM D3032 | 13.6kg | Qualified |
Volume resistivity | ASTM D2671 | ≥1.0×1012Ω.cm | 9.0×1014Ω.cm |
Flame retardant | ASTM D2863 | ≥28 | 29 |
RT-1112 | 30s Self-extinguishing | Qualified | |
Pressure | 2500V,60s | No breakdown | Qualified |
Tensile strength after aging | ASTM D2671 | ≥6.9MPa | 11.0MPa |
Oil resistance | 97#gasoline23±3℃,24h 100℃±3℃,1h IRM902#oil IRM903#oil Hydraulic oil | No cracking | Qualified |