FRWT water-proof cap is designed to provide waterproof protection for pipeline thermal coating. It is suitable to prevent the end of thermal coating from water.
Quick operation, fast shrink and sound water repellency.
Chemical resistance, resistant to water immersion and water vapor permeability.
Operating speed, shrink rapidly, strong weather proofing and seal performance;
Excellent resistance against chemical corrosion,good water immersion,water vapor penetration prevention and other performances.
Service life is the same age with pipelines.
No. | Item | Unit | Test results | Test Method |
1 | Tensile strength | MPa | 24.6 | GB/T 1040.2/ASTM D638 |
2 | Ultimate Elongation | % | 640 | GB/T 1040.2/ASTM D638 |
3 | Electric strength | MV/m | 32.3 | GB/T 1408.1/ASTM D149 |
4 | Volume Resistivity | Ω·m | 6.05×1013 | GB/T 1410/ASTM D257 |
5 | chemical corrosion resistance 10% HCl (7d) 10% NaOH (7d) 10% NaCl (7d) | % % % | 98 98 98 | GB/T23257-2009 Appendix H |
6 | Heat Aging(150℃ 21d) (%Elongation) | % | 554 | GB/T 1040.2/ASTM D638 |
7 | Heat Shocking (225℃,4h) | - | No cracking, flow, or dripping | GB/T23257-2009 Appendix L/ASTM D2671 |
8 | Impact Resistance | J | >15 | GB/T23257 Appendix k/ ASTM G14 |
