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Dual wall Heat Shrink tube

DW (3:1, 4:1) is a flexible, flame-retardant, dual wall, high-shrink-ratio, irradiated heat-shrinkable tubing manufactured by co-extrusion of polyolefin and hot-melt adhesive. Inner is hot-melt adhesive with good stickness and outer is flexible, irradiated cross-linked polyolefin. It is widely used to environmentally seal and protect interconnections, joints and components from fluids, moisture and corrosion. High shrink ratio allows for connector-to-cable sealing and makes it possible to repair most damaged cable jackets without removing connectors.

Features/Benefits

·Shrink ratio: 3:1, 4:1.

·Environmentally seals and protects components, joints and interconnections from fluids, moisture and corrosion.

·Good mechanical, electrical and chemical properties.

·Adhesive has good stickness and bonds to a wide variety of plastics, rubbers and metals.

·Conform to RoHS and Sony-ss00259 environmental directive.

Operating Temperature Range

·Operating temperature range: -55℃~110℃

·Minimum shrink temperature: 80℃

·Minimum full recovery temperature: 110℃

Specifications/Standards

UL224 125℃ 600V

AMS-DTL-23053/4 class3

Specification values

	Property	Requirement	Test method	Typical value
Physical：	Tensile strength	9.0MPa min.	ASTM D 638	≥12MPa
	Elongation	200% min.	ASTM D 638	≥400%
	Heat shock	No cracking, dripping or flowing of outer wall	ASTM D 2671	Pass
	Low temperature flexibility	No cracking	ASTM D 2671	Pass
	Aging 158℃,168hrs
	Tensile strength after aging	70% of original min.	ASTM D 638	≥90%
	Elongation after aging	100% min.	ASTM D 638	≥300%
Electrical：	Dielectric voltage withstand	2500V, 60sec no breakdown	ASTM D 2671	Pass
Electrical：	Volume resistivity	10¹⁴Ω·cm min.	ASTM D 876	≥10¹⁴Ω·cm
Chemical：	Copper corrosion 158℃,168hrs	No corrosion	ASTM D 2671	Pass
	Flammability	ALL TUBING FLAME TEST	UL224	Pass

Product sizes

Size (inch/mm)	As supplied（mm）		After recovery（mm）			Standard length （m/length, m/spool）
Size (inch/mm)	Inside diameter (min.)	Wall thickness* (nominal)	Inside diameter (max.)	Wall thickness* (nominal)	Adhesive wall thickness (nominal)	Standard length （m/length, m/spool）
3:1
1/8 (3/1)	3.0	0.35	1.0	1.00±0.28	0.50	1.2/200
3/16 (4.8/1.6)	4.8	0.35	1.6	1.00±0.28	0.50	1.2/100
1/4 (6/2)	6.0	0.4	2.0	1.00±0.28	0.50	1.2/100
3/8 (9/3)	9.0	0.5	3.0	1.40±0.28	0.60	1.2
1/2 (12/4)	12.0	0.6	4.0	1.78±0.38	0.76	1.2
3/4 (18/6)	18.0	0.7	6.0	2.25±0.55	0.76	1.2
1 (24/8)	24.0	0.8	8.0	2.54±0.55	1.02	1.2
1 1/4 (30/10)	30.0	0.8	10.0	2.54±0.55	1.02	1.2
1 1/2 (39/13)	39.0	0.8	13.0	2.54±0.55	1.02	1.2
4:1
4/1	4.0	0.4	1.0	1.00±0.28	0.50	1.2
6/1.5	6.0	0.45	1.5	1.00±0.28	0.50	1.2
8/2	8.0	0.45	2.0	1.00±0.28	0.50	1.2
12/3	12.0	0.5	3.0	1.40±0.28	0.60	1.2
16/4	16.0	0.6	4.0	1.78±0.38	0.76	1.2
24/6	24.0	0.7	6.0	2.25±0.55	0.76	1.2
32/8	32.0	0.8	8.0	2.54±0.55	1.02	1.2
52/13	50.0	0.8	13.0	2.54±0.55	1.02	1.2