Flame Retardant Dual Wall Heat Shrink Tubing (Item AFR140, Adhesive Lined Tubing, Black, 3:1 Shrink Ratio)

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Flame Retardant Dual Wall Heat Shrink Tubing (Item AFR140, Adhesive Lined Tubing, Black, 3:1 Shrink Ratio) Application

The flame retardant dual wall heat shrink tubing is made of polyolefin material and hot-melt adhesive. The outer layer is cross-linking polyolefin and the inner one hot-melt adhesive, both of which have excellent flame retardant properties.

At the same time, the product can provide insulation, waterproof, mechanical protection and impact resistance, so it is mainly used for the sealing and insulation protection of medium and low voltage cable termination or the joints in-between, insulation for all kinds of bus lines and other working environment requiring anti-corrosion, moisture prevention and mechanical sealing.

Flame Retardant Dual Wall Heat Shrink Tubing (Item AFR140, Adhesive Lined Tubing, Black, 3:1 Shrink Ratio)

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
Flame retardant type	YES
Major material	EVA
Standard color	black (other colors can be ordered)

Specification chart

Specification	Inner diameter before shrinking	Size after shrinking (mm)				Package standard (Meter/piece)
Specification	Inner diameter Minimum (mm)	Inner diameter maximum	The outer layer wall thickness	Adhesive layer thickness	Average total wall thickness	Package standard (Meter/piece)
10.2/3.0	10.2	3	1.40±0.20	0.35±0.10	1.75±0.25	1.22
19.1/5.6	19.1	5.6	2.00±0.20	0.45±0.10	2.45±0.25	1.22
28/9	28	9	2.00±0.20	0.50±0.10	2.60±0.25	1.22
38.1/12	38.1	12	2.20±0.20	0.50±0.10	2.70±0.25	1.22
55/16	55	16	2.30±0.25	0.50±0.10	2.80±0.30	1.22
75/22	75	22	2.60±0.25	0.50±0.10	3.00±0.30	1.22
95/29	95	29	3.10±0.30	0.60±0.20	3.70±0.35	1.22
140/42	140	42	3.10±0.30	0.60±0.20	3.70±0.35	1.22
180/58	180	58	3.10±0.30	0.60±0.20	3.70±0.35	1.22
230/69	230	69	3.10±0.30	0.60±0.20	3.70±0.35	1.22

Flame retardant dual wall heat shrink tubing technology index

Property	Index	Test method
Tensile strength	≥12 MPa	ASTM D 2671
Breaking elongation	≥300%	ASTM D 2671
Tensile strength after heat aging	≥8.4MPa	158℃×168h
Breaking elongation after heat aging	≥100%	158℃×168h
The axial changing ratio	-8%～+8%	ASTM D 2671
Flame retardant property	Outer layer self-extinguish within 30s	SAE-AMS-DTL-23053/5
Disruptive strength	≥15kV/mm	IEC 60243
Volume resistivity	≥1014Ω=cm	IEC 60093

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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