| Mineral Fiber Rubber Sheet Physical Property | ||||||
| GB/T539-1995 | ||||||
| Item | B70145 | B70140 | B70135 | B70130 | B70120 | B70115 |
| Color |
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| Tensile Strength ≥Mpa | 19.0 | 15.0 | 12.0 | 9.0 | 6.0 | 5.0 |
| Aging Coefficient≥ | 0.9 | |||||
| Burning loss ≤ % | 28 | 30 | 30 | |||
| Density g/cm3 | 1.6~2.0 | |||||
| Compressibility % | 12+/-5 | |||||
| Rebound Degree | 45 | 40 | 35 | |||
| Pliability | No crack | |||||
| Stress relaxation ≤ | 50 | |||||
| Steam Airtightness | With the temperature of 440~450oC and the pressure of 11~12Mpa, keep for 30 min without puncture | With the temperature of 390~400oC and the pressure of 8~9Mpa, keep for 30 min without puncture | With the temperature of 340~350oC and the pressure of 7~8Mpa, keep for 30 min without puncture | With the temperature of 290~300oC and the pressure of 4~5Mpa, keep for 30 min without puncture | With the temperature of 200~220oC and the pressure of 2~3Mpa, keep for 30 min without puncture | With the temperature of 140~150oC and the pressure of 1.5~2Mpa, keep for 30 min without puncture |
