Home 3:1 Single Wall Flame Retardant Heat Shrink Tubing (Item FR140, Black)

3:1 Single Wall Flame Retardant Heat Shrink Tubing (Item FR140, Black)

3:1 Single Wall Flame Retardant Heat Shrink Tubing (Item FR140, Black) Application

The 3:1 single wall flame retardant heat shrink tubing is made by extruding the polyolefin after radiation disposal and has uniform wall thickness, the thickest layer reaching to 3.7mm.


This tubing not only has excellent electrical insulation property but also has good flame retardant properties and is mainly applied for insulation protection of medium or low voltage cables with flame retardant requirements or for anti-corrosion and mechanical protection used of any pipe.

3:1 Single Wall Flame Retardant Heat Shrink Tubing  (Item FR140, Black)
Product features
The lowest temperature of beginning shrinking70℃
The lowest temperature of finishing shrinking 125℃
Operating temperature -45℃~125℃
Heat shrinkage ratio 3:1
Environmental standard RoHS
Flame retardant type soft and flame retardant
Major material EVA
Standard colors black (other colors can be ordered)
Specification chart
Specification Size before shrinking (mm) Size after shrinking (mm) Package standard
Inner diameter Inner diameter maximum Wall thickness Meter/piece
6/2 6 2 1.80±0.25 1.22
10.2/3.0 10.2 3 1.75±0.25 1.22
16/5.0 16 5 1.90±0.25 1.22
19.1/5.6 19.1 5.6 2.45±0.25 1.22
25/8 25 8 2.45±0.25 1.22
28/9 28 9 2.60±0.25 1.22
35/10.2 35 10.2 2.70±0.25 1.22
38.1/12 38.1 12 2.70±0.25 1.22
43.2/12.7 43.2 12.7 2.70±0.25 1.22
55/16 55 16 2.80±0.30 1.22
63/19 63 19 3.00±0.30 1.22
75/22 75 22 3.00±0.30 1.22
85/25 85 25 3.30±0.30 1.22
95/29 95 29 3.70±0.35 1.22
115/34 115 34 3.70±0.35 1.22
140/42 140 42 3.70±0.35 1.22

3:1 Single wall flame retardant heat shrink tubing technology index
Property Index Test method
Tensile strength ≥12MPa 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 Self-extinguish within 30s SAE-AMS-DTL-23053/4
Disruptive strength ≥15kV/mm IEC 60243
Volume resistivity ≥1014Ω·cm IEC 60093

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