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Dual Wall Adhesive Waterproof Shrink Tubing
SBRS-125G(2X)(3X)(4X) is a cross-linked polyolefin tube that is extruded with an inner layer of adhesive. The inner layer of adhesive, with superior sealing capability, is also a buffer against mechanical strain. Dual wall heat shrink tubing is designed to provide superior sealing against water, corrosive gas and chemicals. Typical applications include environmental sealing of in-line splices, sealing and strain relief of connectors and terminals, abrasion protection and electrical insulation of automotive wiring harness splices and valuable components, fleet & marine sealing & protection and wire bundling etc.
Features Standard:UL 224 Shrink ratio:2:1 3:1 4:1 Flame retardant out layer, environmentally friendly,UV resistant Min shrink temp.:80°C Min full recovery temp.:110℃ Continuous operating temperature:-55℃~125℃ RoHS compliant Standard colors:black,other colors are available on request
Technical performance
Property
Typical
data
Test
method/condition
Tensile strength
≥12MPa
ASTM D 2671
Elongation at break
≥400%
ASTM D 2671
Tensile strength after heat aging
≥11MPa
158℃ ×168h
Elongation after heat aging
≥350%
158℃ ×168h
Longitudinal change
0~+10%
ASTM D 2671
Flammability
Self extinguishing in 30 sec.
AMS-DTL-23053/4
Dielectric strength
≥15kV/mm
IEC 60243
Volume resistivity
≥1014Ω.cm
IEC 60093
Technical performance of adhesive
Property
Typical
data
Test
method/condition
Softening point
95±5°C
ASTM E 28
Water absorption
<0.5%
ASTM D 570
Peel strength(PE)
≥120N/25mm
ASTM D 1000
Peel strength(AI)
≥80N/25mm
ASTM D 1000
Structure
Dimensions 2:1
Size
(mm)
As
supplied D(mm)
After
full recovery(mm)
Standard
Package
Inner diameter d
Wall thickness w1
Thickness of adhesive layer w2
(M/Roll or M/Pcs)
Φ1.6
≥1.6
≤0.80
0.60±0.15
0.30±0.10
200
Φ2.4
≥2.4
≤1.20
0.70±0.15
0.35±0.10
200
Φ3.2
≥3.2
≤1.60
0.70±0.15
0.35±0.10
200
Φ4.8
≥4.8
≤2.40
0.80±0.15
0.40±0.10
100
Φ6.4
≥6.4
≤3.20
0.80±0.15
0.40±0.10
100
Φ7.9
≥7.9
≤3.90
0.90±0.15
0.45±0.10
100
Φ9.5
≥9.5
≤4.80
0.90±0.15
0.45±0.10
50
Φ12.7
≥12.7
≤6.40
0.95±0.20
0.45±0.10
25
Φ15.9
≥15.9
≤7.90
0.95±0.20
0.45±0.10
25
Φ19.1
≥19.1
≤9.50
1.00±0.20
0.45±0.10
25
Φ25.4
≥25.4
≤12.70
1.10±0.20
0.50±0.10
25
Φ31.8
≥31.8
≤15.0
1,15±0.20
0.50±0.10
1.22
Φ38.1
≥38.1
≤19.0
1.25±0.20
0.50±0.10
1.22
Φ44.5
≥44.5
≤22.0
1.35±0.20
0.55±0.10
1.22
Φ50.8
≥50.8
≤25.4
1.50±0.25
0.60±0.10
1.22
Size(mm)
As supplied D(mm)
After full recovery (mm)
Standard Package
Inner
diameter d
Wall
thickness w1
Thickness
of adhesive layer w2
(M/Roll
or M/Pcs)
Φ3.0(3.2)
≥3.0
≤1.00
≥1.00
0.50
200
Φ4.8
≥4.8
≤1.50
≥1.00
0.50
100
Φ6.0(6.4)
≥6.0
≤2.00
≥1.00
0.50
100
Φ7.9
≥7.9
≤2.70
≥1.30
0.50
100
Φ9.0(9.5)
≥9.0
≤3.00
≥1.40
0.60
50
Φ12.0(12.7)
≥12.0
≤4.00
≥1.60
0.80
25
Φ15.0
≥15.0
≤5.00
≥1.80
0.80
25
Φ19.0(19.1)
≥19.0
≤6.00
≥2.10
0.80
25
Φ24.0(25.4)
≥24.0
≤8.00
≥2.40
1.00
25
Φ30.0
≥30.0
≤10.0
≥2.40
1.00
25
Φ40.0(39.0)
≥39.0
≤13.0
≥2.40
1.00
1.22
Φ50.0
≥50.0
≤19.0
≥2.40
1.00
1.22
Size(mm)
As
supplied D(mm)
After
full recovery (mm)
Standard
Package
Inner diameter d
Wall thickness w1
Thickness of adhesive layer w2
(M/Roll or M/Pcs)
Φ4.0
≥4.0
≤1.00
≥1.00
0.50
200
Φ6.0
≥6.0
≤1.50
≥1.00
0.50
100
Φ8.0
≥8.0
≤2.00
≥1.00
0.50
50
Φ12.0
≥12.0
≤3.00
≥1.40
0.60
25
Φ16.0
≥16.0
≤4.00
≥1.60
0.80
25
Φ19.0
≥19.0
≤4.50
≥1.80
0.80
25
Φ24.0
≥24.0
≤6.00
≥2.10
0.80
25
Φ32.0
≥32.0
≤8.00
≥2.40
1.00
1.22
Φ40.0
≥40.0
≤10.0
≥2.40
1.00
1.22
Φ52.0
≥52.0
≤13.0
≥2.40
1.00
1.22
Note: Other nonstandard dimensions and packages are available on your request.
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Single Wall Heat Shrink Tubing 
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