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SBRS-(2X)G—2:1 Environmentally Friendly Double Wall Pipe
SBRS-(2X)G—2:1 Environmentally Friendly Double Wall Pipe
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Application areas:
Applications requiring sealing include wiring connections in electronic devices, automotive wiring harnesses, household wiring harnesses, wire and cable branches, metal conduits, wire and cable repairs, and submersible pump wiring.
Product Description
The double-walled tube is composed of two layers: a flexible, flame-retardant polyolefin layer and a hot-melt adhesive layer. The outer polyolefin layer is flexible, flame-retardant, and shrinks at low temperatures, while the inner hot-melt adhesive layer buffers mechanical strain and provides a strong seal. Its main functions are sealing against water, corrosion, and air leakage. It is primarily used in applications requiring sealing, such as wire connections in electronic equipment, automotive wiring harnesses, household wiring harnesses, wire and cable branches, metal conduits, wire and cable repairs, and submersible pump wiring.
Heat shrink ratio: 2:1
Initial shrinkage temperature: ≥ +70 ℃
Complete shrinkage temperature: ≥ +125 ℃
Operating temperature: -45 ℃ ~ +125 ℃
Soft , flame-retardant outer layer
Environmental Standards: RoHS
Standard color: Black (other colors can be customized)
Product Parameters
|
Outer layer technical specifications |
||
|
performance |
index |
Test methods |
|
Tensile strength |
≥10.4 MPa |
ASTM D 2671 |
|
Elongation at break |
≥200% |
ASTM D 2671 |
|
Strength after aging |
≥7.3 MPa |
158 ℃ × 168h |
|
Elongation at break after aging |
≥100% |
158 ℃ × 168h |
|
Axial change rate |
-8% to +8% |
ASTM D 2671 |
|
Flame retardancy |
pass |
ASTM D 2671 B method |
|
Breakdown strength |
≥15kV/mm |
IEC 60243 |
|
Volume resistivity |
≥10 14 Ω·cm |
IEC 60093 |
|
Hot melt adhesive technical specifications |
||
|
performance |
index |
Test methods |
|
softening point |
95±5 ℃ |
ASTM E 28 |
|
Water absorption rate |
< 0.2% |
ASTM D 570 |
|
Peel strength ( PE ) |
≥120N/25mm |
ASTM D 1000 |
|
Peel strength ( Al ) |
≥80N/25mm |
ASTM D 1000 |
Product Selection
|
Specification |
Supply inner diameter (mm) |
Fully shrunk dimensions (mm) |
Standard packaging Rice / plate, Rice / stick |
|||
|
Imperial |
Metric |
inner diameter |
Total wall thickness |
Adhesive layer wall thickness |
||
|
1/16 |
Φ1.6 |
≥1.6 |
≤0.8 |
0.60±0.30 |
0.30±0.20 |
200 |
|
3/32 |
Φ2.4 |
≥2.4 |
≤1.2 |
0.70±0.30 |
0.35±0.20 |
200 |
|
1/8 |
Φ3.2 |
≥3.2 |
≤1.6 |
0.70±0.30 |
0.35±0.20 |
200 |
|
3/16 |
Φ4.8 |
≥4.8 |
≤2.4 |
0.80±0.30 |
0.40±0.20 |
100 |
|
1/4 |
Φ6.4 |
≥6.4 |
≤3.2 |
0.80±0.30 |
0.40±0.20 |
100 |
|
5/16 |
Φ7.9 |
≥7.9 |
≤3.9 |
0.90±0.30 |
0.45±0.20 |
100 |
|
3/8 |
Φ9.5 |
≥9.5 |
≤4.8 |
0.90±0.30 |
0.45±0.20 |
50 |
|
1/2 |
Φ12.7 |
≥12.7 |
≤6.4 |
0.95±0.40 |
0.45±0.20 |
1.22 |
|
5/8 |
Φ15.9 |
≥15.9 |
≤7.9 |
0.95±0.40 |
0.45±0.20 |
1.22 |
|
3/4 |
Φ19.1 |
≥19.1 |
≤9.5 |
1.00±0.40 |
0.45±0.20 |
1.22 |
|
1 |
Φ25.4 |
≥25.4 |
≤12.7 |
1.10±0.40 |
0.50±0.20 |
1.22 |
|
1-1/4 |
Φ31.8 |
≥31.8 |
≤15.0 |
1.15±0.40 |
0.50±0.20 |
1.22 |
dd
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