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The double wall pipe is composed of halogen-free flame-retardant polyolefin and hot-melt adhesive. The outer layer is halogen-free and flame-retardant polyolefin insulation material. The inner layer of hot-melt adhesive can buffer mechanical strain and has strong sealing performance. The main functions are sealing, waterproof, anti-corrosion, air leakage and insulation protection. It is mainly used in the fields of sealing, insulation, binding and fixing of various wire harnesses, marine wires and cables and metal pipes where sealing, waterproof, moisture-proof and anti-corrosion are required.
Product features:
1. thermal shrinkage ratio: 3:1
2. initial shrinkage temperature: ≥ + 70 ℃
3. complete shrinkage temperature: ≥ + 125 ℃
4. service temperature: - 45 ℃ ~ + 125 ℃
5.UV resistance, flame retardant outer layer
6. environmental protection standard: RoHS
7. standard color: transparent, black, white, red, yellow, green, blue and other seven international standard colors
Outer layer technical index | ||
performance | index | test method |
tensile strength | ≥10.4 MPa | ASTM D 2671 |
elongation at break | ≥300% | ASTM D 2671 |
Strength after aging | ≥7.3 MPa | 158℃×168h |
Elongation after aging | ≥100% | 158℃×168h |
Axial change rate | -8%~+8% | ASTM D 2671 |
Flame retardancy | adopt | ASTM D 2671 B 法 |
Breakdown strength | ≥15kV/mm | IEC 60243 |
Volume resistivity | ≥1014 Ω·cm | IEC 60093 |
Technical index of hot melt adhesive | ||
performance | index | test method |
softening point | 90±5℃ | ASTM E 28 |
Water absorption | ＜0.2% | ASTM D 570 |
Peel strength (PE) | ≥120N/25mm | ASTM D 1000 |
Peel strength (AL) | ≥80N/25mm | ASTM D 1000 |
The double wall pipe is composed of halogen-free flame-retardant polyolefin and hot-melt adhesive. The outer layer is halogen-free and flame-retardant polyolefin insulation material. The inner layer of hot-melt adhesive can buffer mechanical strain and has strong sealing performance. The main functions are sealing, waterproof, anti-corrosion, air leakage and insulation protection. It is mainly used in the fields of sealing, insulation, binding and fixing of various wire harnesses, marine wires and cables and metal pipes where sealing, waterproof, moisture-proof and anti-corrosion are required.
Product features:
1. thermal shrinkage ratio: 3:1
2. initial shrinkage temperature: ≥ + 70 ℃
3. complete shrinkage temperature: ≥ + 125 ℃
4. service temperature: - 45 ℃ ~ + 125 ℃
5.UV resistance, flame retardant outer layer
6. environmental protection standard: RoHS
7. standard color: transparent, black, white, red, yellow, green, blue and other seven international standard colors
Outer layer technical index | ||
performance | index | test method |
tensile strength | ≥10.4 MPa | ASTM D 2671 |
elongation at break | ≥300% | ASTM D 2671 |
Strength after aging | ≥7.3 MPa | 158℃×168h |
Elongation after aging | ≥100% | 158℃×168h |
Axial change rate | -8%~+8% | ASTM D 2671 |
Flame retardancy | adopt | ASTM D 2671 B 法 |
Breakdown strength | ≥15kV/mm | IEC 60243 |
Volume resistivity | ≥1014 Ω·cm | IEC 60093 |
Technical index of hot melt adhesive | ||
performance | index | test method |
softening point | 90±5℃ | ASTM E 28 |
Water absorption | ＜0.2% | ASTM D 570 |
Peel strength (PE) | ≥120N/25mm | ASTM D 1000 |
Peel strength (AL) | ≥80N/25mm | ASTM D 1000 |
