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SBS Modified Bitumen Waterproof Membrane Technical data: GB18242-2008 | ||||||||||
NO. | BASE | PY | ||||||||
TYRE | I | II | ||||||||
1 | Soluble content g/m2 ≥ | 2mm | --- | |||||||
3mm | 2100 | |||||||||
4mm | 2900 | |||||||||
2 | Impermeability | Pressure. Mpa | 0.3 | |||||||
Keeping time. min | 30 | |||||||||
3 | Heat resistance, °C | 90 | 105 | |||||||
no slipping, no flowing ,no dripping | ||||||||||
4 | Tension, N/50mm ≥ | Longitudinal | 450 | 800 | ||||||
transverse | ||||||||||
5 | Fracture elongation, %≥ | Longitudinal | 30 | 40 | ||||||
transverse | ||||||||||
6 | Cold flexibility, °C | -20 | -25 | |||||||
No crack | ||||||||||
7 | Tear resistance, N≥ | Longitudinal | 250 | 350 | ||||||
transverse | ||||||||||
8 | Phytotrons accelerating ageing | Appearance | First lass | |||||||
no slipping, no flowing, no dripping | ||||||||||
Tension keeping %≥ | Longitudinal | 80 | ||||||||
Cold flexibility,°C | -15 | -20 | ||||||||
No crack |