Оптовая продажа водонепроницаемая мембрана наружные кровельные материалы ПВХ листовая основа
2,30-2,50 $
Сохранить в закладки 1601210352451:
No | Item(TPO waterproof coil with strong weather resistance and fracture resistance) | Indicator | ||||||
H | L | P | ||||||
1 | Thickness of resin layer above intermediate substrate/mm ≥ | 0.4 | ||||||
2 | tensile property | maximum tension/(N/cm) ≥ | 200 | 250 | ||||
tensile strength/Mpa ≥ | 12 | |||||||
Elongation at maximum tension/% ≥ | 15 | |||||||
elongation at break /% ≥ | 500 | 250 | ||||||
3 | Heat treatment size change rate /% ≤ | 2 | 1 | 1.5 | ||||
4 | Low temperature flexability | -40℃ Nocrack | ||||||
5 | unpermeability | 0.3MPa,2h impermeable | ||||||
6 | shock resistance | 0.5kg.m,impermeable | ||||||
7 | Resistance to static load | 20kg impermeable | ||||||
8 | Joint stripping strength/(N/mm) ≥ | 4.0 or coil damage | 3 | |||||
9 | Right-angle tearing strength/(N/mm) ≥ | 60 | ||||||
10 | Trapezoidal tearing strength/N ≥ | 250 | 450 | |||||
11 | water absorption(70℃ 168h)/% | 4 | ||||||
12 | thermal ageing(115℃) | Time/h | 672 | |||||
appearance | No bubbling, cracking, delamination, bonding and porosity | |||||||
Maximum tensile retention/% ≥ | 90 | 90 | ||||||
Tensile strength retention rate/% ≥ | 90 | |||||||
Elongation retention at maximum tension/% ≥ | 90 | |||||||
Elongation at break retention rate/% ≥ | 90 | 90 | ||||||
Low temperature flexability | -40℃ no crack | |||||||
13 | chemical resistance | appearance | No bubbling, cracking, delamination, bonding and porosity | |||||
Maximum tensile retention/% ≥ | 90 | 90 | ||||||
Tensile strength retention rate/% ≥ | 90 | |||||||
Elongation retention at maximum tension/% ≥ | 90 | |||||||
Elongation at break retention rate/% ≥ | 90 | 90 | ||||||
Low temperature flexability | -40℃,no crack | |||||||
14 | artificial weathering test | Time/h | 1500 | |||||
appearance | No bubbling, cracking, delamination, bonding and porosity | |||||||
Maximum tensile retention/% ≥ | 90 | 90 | ||||||
Tensile strength retention rate/% ≥ | 90 | |||||||
Elongation retention at maximum tension/% ≥ | 90 | |||||||
Elongation at break retention rate/% ≥ | 90 | 90 | ||||||
Low temperature flexability | -40℃ no crack |
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