3:1 Dual Wall Heat Shrink Tubing (Item ZH100, Adhesive Lined Tubing, Offer Yellow / Red / Green Color)

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3:1 Dual Wall Heat Shrink Tubing (Item ZH100, Adhesive Lined Tubing, Offer Yellow / Red / Green Color) Application

3:1 Dual wall heat shrink tubing is made of soft and flame retardant polyolefin and hot-melt adhesive double layers without producing any harmful substances. The outer layer is polyolefin insulation flame retardant material which can resist ultraviolet and the inner one is hot-melt adhesive with excellent sealing property.

This product can avoid water, resist corrosion and prevent air leakage mainly applied to the binding and fixing of multiple strands of metal tubing.

Main features

The lowest temperature of beginning shrinking	70℃
The lowest temperature of ending shrinking	125℃
Operating temperature	-45℃~125℃
Heat shrinking ratio	3:1
Environmental standard	RoHS
Major material	EVA
Standard color	black (other colors can be ordered)

Specification chart

Specification	Inner diameter before shrinking	Size after shrinking(mm)			Package standard
Specification	Inner diameter Minimum(mm)	Inner diameter maximum	Total wall thickness	Adhesive layer wall thickness	Meter/coil or piece
Φ2.4	2.4	0.8	0.85±0.15	0.40±0.10	200
Φ3.2	3.2	1.0	0.95±0.15	0.40±0.10	200
Φ4.8	4.8	1.6	1.10±0.15	0.40±0.10	100
Φ6.4	6.4	2.2	1.20±0.15	0.45±0.10	100
Φ7.9	7.9	2.7	1.35±0.15	0.50±0.10	100
Φ9.5	9.5	3.2	1.45±0.20	0.50±0.15	50
Φ12.7	12.7	4.2	1.70±0.20	0.50±0.15	1.22
Φ15.0	15.0	5.2	1.80±0.20	0.55±0.15	1.22
Φ19.1	19.1	6.3	2.00±0.20	0.55±0.15	1.22
Φ25.4	25.4	8.5	2.10±0.25	0.55±0.15	1.22
Φ30.0	30.0	10.2	2.20±0.25	0.60±0.15	1.22
Φ39.0	39.0	13.5	2.40±0.25	0.60±0.15	1.22
Φ50.0	50.0	17.0	2.70±0.25	0.80±0.15	1.22
Φ64.0	64.0	21.0	3.00±0.30	0.80±0.20	1.22
Φ76.0	76.0	25.0	3.00±0.30	1.00±0.20	1.22
Φ90.0	90.0	30.0	3.00±0.30	1.00±0.20	1.22
Φ100	100	34	3.00±0.30	1.00±0.20	1.22

Environmental dual wall tubing technology index

Property	Index	Test method
Tensile strength	≥10.4MPa	ASTM D 2671
Breaking elongation	≥300%	ASTM D 2671
Tensile strength after heat aging	≥7.3MPa	158℃×168h
Breaking elongation after heat aging	≥100%	158℃×168h
The axial changing ratio	-8%～+8%	ASTM D2671
Flame retardant property	Self-extinguish within 30s	SAE-AMS-DTL-23053/5
Disruptive strength	≥15 MV/m	IEC 243
Volume resistivity	≥1014Ω=cm	IEC 93

Hot-melt adhesive technology index

Property	Test method	Index
Softening point	ASTM E 28	85±3℃
Water absorption point	ASTM D 570	≤0.2%
The minimum peel strength of PE	ASTM D 1000	≥120N/25mm
The minimum peel strength of AL	ASTM D 1000	≥80N/25mm