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SBRS-(3X)H—3:1 Halogen-free Flame-retardant Double Wall Pipe
SBRS-(3X)H—3:1 Halogen-free Flame-retardant Double Wall Pipe
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Application areas:
It is mainly used in sealing, insulation, bundling and fixing of various wire harnesses, marine wires and cables and metal pipes that require sealing, waterproofing, moisture protection and corrosion protection.
Product Description
SBRS-(3X)H(3:1) halogen-free flame-retardant double-wall tubing is composed of two layers: halogen-free flame-retardant polyolefin and hot melt adhesive. The outer layer is a halogen-free, flame-retardant polyolefin insulating material, while the inner hot melt adhesive layer provides cushioning against mechanical strain and strong sealing. Its main functions are sealing and waterproofing, corrosion prevention, leak prevention, and insulation protection. It is primarily used in various wire harnesses, marine electrical cables, and metal pipes requiring sealing, waterproofing, moisture-proofing, and corrosion resistance for sealing, insulation, and bundling.
Features:
Heat shrink ratio: 3:1
Initial shrinkage temperature: ≥ +70 ℃
Complete shrinkage temperature: ≥ +125 ℃
Operating temperature: -45 ℃ ~ +125 ℃
UV resistant, flame retardant outer layer
Environmental standards : RoHS , SONY
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 |
≥300% |
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 |
90±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 |
|||
|
Metric |
Imperial |
inner diameter |
Total wall thickness |
Adhesive layer wall thickness |
||
|
Φ2.4 |
3/32 |
≥2.4 |
≤0.80 |
0.80±0.30 |
0.40±0.20 |
200 |
|
Φ3.2 |
1/8 |
≥3.2 |
≤1.00 |
0.90±0.30 |
0.40±0.20 |
200 |
|
Φ4.8 |
3/16 |
≥4.8 |
≤1.60 |
1.05±0.30 |
0.40±0.20 |
100 |
|
Φ6.4 |
1/4 |
≥6.4 |
≤2.20 |
1.25±0.30 |
0.45±0.20 |
100 |
|
Φ7.9 |
5/16 |
≥7.9 |
≤2.70 |
1.35±0.30 |
0.45±0.20 |
100 |
|
Φ9.5 |
3/8 |
≥9.5 |
≤3.20 |
1.45±0.30 |
0.50±0.20 |
50 |
|
Φ12.7 |
1/2 |
≥12.7 |
≤4.20 |
1.65±0.40 |
0.50±0.20 |
1.22 |
|
Φ15.0 |
5/8 |
≥15.0 |
≤5.20 |
1.80±0.40 |
0.55±0.20 |
1.22 |
|
Φ19.1 |
3/4 |
≥19.1 |
≤6.30 |
1.95±0.40 |
0.60±0.30 |
1.22 |
|
Φ25.4 |
1 |
≥25.4 |
≤8.50 |
2.00±0.40 |
0.60±0.30 |
1.22 |
|
Φ30.0 |
1-1/4 |
≥30.0 |
≤10.2 |
2.15±0.40 |
0.65±0.30 |
1.22 |
|
Φ39.0 |
1-1/2 |
≥39.0 |
≤13.5 |
2.45±0.40 |
0.75±0.30 |
1.22 |
|
Φ50.0 |
2 |
≥50.0 |
≤17.0 |
2.75±0.40 |
0.80±0.30 |
1.22 |
dd
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