Dual Wall Semi-Rigid Heat Shrink Tubing (Item ASR230, Adhesive Lined Tubing, Black, 3:1 Shrink Ratio)

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Dual Wall Semi-Rigid Heat Shrink Tubing (Item ASR230, Adhesive Lined Tubing, Black, 3:1 Shrink Ratio) Application

The outer layer of the dual wall semi-rigid heat shrink tubing is a semi-rigid EVA material. The inner material is a hot-melt adhesive. After heating and shrinking, the outer layer EVA can provide insulation and abrasion resistance and the inner can provide waterproofing and sealing.

This kind of tubing is mainly used for insulation protection of medium and low voltage cables and anti-corrosion and abrasion resistance of various tubing.

Product 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 semi-rigid	EVA
Standard color	black (other colors can be ordered)

Specification chart

Specification	Inner diameter before shrinking (mm)	Size after shrinking (mm)						Package standard
Specification	Inner diameter Minimum	Inner diameter maximum			The outer layer wall thickness	Adhesive layer thickness	Average total wall thickness	Meter / piece
Φ6.0 /2.0	6	2	1.4±0.20	1.85±0.25	0.45±0.10			1.22
Φ8.0 /2.0	8	2	1.4±0.20	1.85±0.25	0.45±0.10			1.22
Φ10.2/3.0	10.2	3	1.4±0.20	1.90±0.25	0.50±0.10			1.22
Φ12.0/3.0	12	3	1.4±0.20	1.90±0.25	0.50±0.10			1.22
Φ16.0/5.0	16	5	1.5±0.20	2.15±0.30	0.55±0.15			1.22
Φ19.1/5.6	19.1	5.6	1.8±0.20	2.40±0.30	0.60±0.15			1.22
Φ22.0/6.0	22	6	2.0±0.30	2.60±0.30	0.60±0.15			1.22
Φ25.0/8.0	25	8	2.4±0.30	2.70±0.30	0.95±0.20			1.22
Φ28.0/6.0	28	6	2.5±0.30	3.30±0.35	0.80±0.15			1.22
Φ33.0/8.0	33	8	2.4±0.30	3.30±0.35	0.80±0.15			1.22
Φ38.1/12.0	38.1	12	2.4±0.30	3.30±0.35	0.80±0.15			1.22
Φ43.2/12.7	43.2	12.7	2.4±0.30	3.30±0.35	0.80±0.15			1.22
Φ55.0/16.0	55	16	2.5±0.30	3.30±0.35	0.80±0.15			1.22
Φ65.0/19.0	65	19	2.9±0.30	3.30±0.35	0.80±0.15			1.22
Φ75.0/22.0	75	22	2.9±0.30	3.70±0.40	0.80±0.15			1.22
Φ85.0/25.0	85	25	3.0±0.30	3.70±0.40	0.80±0.15			1.22
Φ95.0/30.0	95	30	3.0±0.30	3.80±0.40	0.80±0.15			1.22
Φ115/34.0	115	34	3.0±0.30	3.80±0.40	0.80±0.15			1.22
Φ140/42.0	140	42	3.1±0.30	3.80±0.40	0.80±0.15			1.22
Φ160/50.0	160	50	3.1±0.30	3.90±0.40	0.80±0.15			1
Φ180/65.0	180	65	3.1±0.30	3.90±0.40	0.80±0.15			1
Φ200/69.0	200	69	3.1±0.30	3.90±0.40	0.80±0.15			1
Φ230/78.0	230	78	3.1±0.30	3.90±0.40	0.80±0.15			1

Dual wall semi-rigid heat shrink tubing technology index

Property	Index	Test method
Minimum tensile strength	≥14MPa	ASTM D 2671
Minimum breaking elongation	≥400%	ASTM D 2671
Tensile strength after heat aging	≥12MPa	158℃×168h
Minimum breaking elongation after heat aging	≥300%	158℃×168h
The axial changing ratio	-8%～+8%	ASTM D 2671
Minimum disruptive strength	20kV/mm	IEC 60243
Minimum volume resistivity	Ω·cm	IEC 60093
Water absorption ratio	0.005	ASTM D 570
Heat impact	No crack and dripping	225℃×4h

Hot-melt adhesive technology index

Property	Index	Test method
Softening point	95℃±5℃	ASTM E 28
Water absorption point	0.5%	ASTM D 570
The minimum peel strength of PE	≥120N/25mm	ASTM D 1000
The minimum peel strength of AL	≥80N/25mm	ASTM D 1000

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