| Oil resisting Mineral Fiber rubber sheet physical property | |||||||
| GB/T539-1995 | |||||||
| Item | B70340 | B70330 | B70325 | B70315 | B703M1 | B703M2 | |
| Color |
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| With the temperature of 150+/-2oC, dipped in No.20 aviation oil for 5h, then take out and laid for 5min | Horizontal strain ≥ Mpa | 26.0 | 10.8 | 9.0 | 8.0 | 13 | 15 |
| Oil absorptivity ≤ | 9 | 23 | 23 | 23 | 20 | 20 | |
| Thickness increasing ≤ % | 15 | 15 | 20 | 15 | 15 | ||
| Change of outlook | No bubble | ||||||
| With the temperature of 15~30 oC, dipped in No.75 aviation gasoline for 5h, then take out and laid for 5min | Horizontal Strain ≥ Mpa | 14.7 | 7.9 | 7.0 | 6.0 | 8.5 | 10 |
| Oil Absorptivity ≤ % | 15 | 22 | 22 | 22 | 18 | 18 | |
| Thickness increasing ≤% | 20 | 25 | 25 | 23 | 23 | ||
| Softness | No crack | ||||||
| Softness | No crack | ||||||
| Density g/cm3 | 1.6~2.0 | ||||||
| Compressibility % | 12+/-5 | ||||||
| Elasticity ≥ | 50 | 45 | 45 | 35 | 45 | 45 | |
| Oil-sealing | Temperature 15~30oC medium: No#75 aviation gasoline or No#3 jet fuel | Pressure: 12Mpa | Pressure: 15Mpa | Pressure: 10Mpa | Pressure: 8Mpa | Pressure: 15Mpa | Pressure: 15Mpa |
| Corrosiviness | Hard aluminium plate, low carbon steel | No corrosion | |||||
| Horizontal strain ≥ Mpa | 12.7 | 11.0 | 9.0 | ||||
| Stress relaxation ≤% |
45 |
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