CB-DWT(1000) Military Heat Shrink Dual Wall Tubing

Category: Heat Shrink Busbar Sleeving

Product manual

Material: Outer: crosslinked modified polyolefin resin
Inner layer: hot melt adhesive
Shrink ratio: 2:1, 3:1, 4:1
Features:
• has excellent oil and chemical resistance;
• low smoke, flame retardant, meet SAE-AMS-DTL25053 / 4 standards;
• Good flexibility;
• continuous use temperature: -55 ℃ ~ + 135 ℃;
• shrink temperature: 100 ℃ ~ 140 ℃.

Applications: The product according to automotive wiring harness, specific requirements the oil and gas path of the car designed, has excellent oil resistance and insulation properties, flame retardant, RoHS environmental requirements. Meanwhile, the material combines softness and excellent mechanical properties, and the need for applications that require the use of special protection sites in the harsh environment can be widely used in various automotive tubing and line protection.

Specifications Performance

Specifications	Inner diameter				Wall thickness after complete shrinkage
	Minimum inner diameter before shrinkage		Maximum inner diameter after shrinkage		Total wall thickness		Within a thick plastic
	mm	Inch sizes	mm	Inch sizes	mm	Inch sizes	mm	Inch sizes
CB-1000-201	6.060	0.238	3.180	0.125	0.737±0.127	0.029±0.005	0.102	0.004
CB-1000-202	9.020	0.355	4.750	0.187	0.737±0.127	0.029±0.005	0.102	0.004
CB-1000-203	12.07	0.475	6.350	0.250	0.762±0.127	0.030±0.005	0.127	0.005
CB-1000-204	18.08	0.712	9.530	0.375	0.889±0.127	0.035±0.005	0.127	0.005
CB-1000-205	24.13	0.950	12.70	0.500	1.070±0.178	0.042±0.007	0.178	0.007
CB-1000-206	35.20	1.425	19.05	0.750	1.190±0.203	0.047±0.008	0.178	0.007
CB-1000-301	3.050	0.120	1.020	0.040	1.020±0.254	0.040±0.010	0.508	0.020
CB-1000-302	6.100	0.240	2.040	0.080	1.020±0.254	0.040±0.010	0.508	0.020
CB-1000-303	11.94	0.470	4.060	0.160	1.780±0.356	0.070±0.014	0.762	0.030
CB-1000-304	23.87	0.940	8.130	0.320	2.540±0.508	0.100±0.020	1.020	0.040
CB-1000-305	39.38	1.570	12.95	0.510	2.540±0.508	0.100±0.020	1.020	0.040

Item	Test method	Indicator	Values
Tensile strength	ASTM D638	≥10.4MPa	14.1MPa
Elongation at break	ASTM D638	≥200%	329%
Cutting modulus	ASTM D882，2%应变	≤172MPa	153MPa
Hot shock	250±3℃，4hrs	Without dripping, flowing or crack	Qualified
Cold shock	ASTM D745，-55±2℃	No cracking	Qualified
Breakdown strength	ASTM D2671	≥19.7kv/mm	26kv/mm
Volume resistivity	ASTM D876	≥1×1012	3.6×1013
Thermal aging	175±2℃，168hrs	In gel does not drip, the skin does not crack	Qualified
Tensile strength after aging	ASTM D638	≥6.9MPa	9.5MPa
Breakdown strength after aging	ASTM D2671	≥15.8kv/mm	24kv/mm

Description: The tube cross-sectional area is not a strength test; 2 After cooling to room temperature aging at 10 & plusmn; within 2s wound on the specified diameter mandrel without cracking.