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| NO. | BASE | PY | G | |||
| TYPE | I | II | I | II | ||
| 1 | Soluble content g/m2≥ | 2mm | - | 1300 | ||
| 3mm | 2100 | |||||
| 4mm | 2900 | |||||
| 2 | impermeability | pressure.Mpa≥ | 0.3 | 0.2 | 0.3 | |
Keeping time.min | 30 | |||||
| 3 | Heat resistance,℃ | 90 | 105 | 90 | 105 | |
No slipping,no flowing,no dripping | ||||||
| 4 | Cold flexibility,℃ | -20 | -25 | -20 | -25 | |













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