CYG-DWT(3000) Semi-regid Heat Shrink Dual Wall Tubing

Category: Heat Shrink Busbar Sleeving

Product manual

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.

SpecificationsInner diameterWall thickness after complete shrinkage
Minimum inner diameter before shrinkageMaximum inner diameter after shrinkageThickness of shuckThickness of hose liningTotal wall thickness
mmInch sizesmmInch sizesmmInch sizesmmInch sizesmmInch sizes
CB-3000-15.720.2251.270.0500.640.0250.560.0221.200.047
CB-3000-27.440.2931.650.0650.760.0300.760.0301.520.060
CB-3000-310.850.4272.410.0950.890.0351.020.0401.910.075
CB-3000-417.780.7004.450.1751.040.0411.370.0542.410.095
ItemTest methodIndicatorValues
Longitudinal length change rateASTM D26710-10%5%
Tensile strengthASTM D2671≥10.3MPa18.87MPa
Elongation at breakASTM D4.3.1.2≥250%330%
Thermal agingASTM D2671≥137MPa370MPa
Hot shock250±3℃,4hWithout dripping, flowing or crackQualified
Cut continuityASTM D303213.6kgQualified
Volume resistivityASTM D2671≥1.0×1012Ω.cm9.0×1014Ω.cm
Flame retardantASTM D2863≥2829
RT-111230s Self-extinguishingQualified
Pressure2500V,60sNo breakdownQualified
Tensile strength after agingASTM D2671≥6.9MPa11.0MPa
Oil resistance97#gasoline23±3℃,24h
100℃±3℃,1h
IRM902#oil
IRM903#oil
Hydraulic oil
No crackingQualified