Brand:SHUNDA
Model:EP,Nylon, CC
MOQ:-0 -
Application：
Rubber water-proof belt is generallt used in large concrete construction such as dam, reservoir and basement etc. Rubber water-proof belt is poured in deformation joint and construction joint of these project to avoid leakage.
Physical and mechanical property of rubber should accord with requirement listed below:
| Item | Description | Nature rubber | Synthetic rubber | ||
| 1 | Hardness A | 60±5 | 60±5 | ||
| 2 | Tensile strength Mpa ≥ | 18 | 16 | ||
| 3 | Tensile yield % ≥ | 450 | 400 | ||
| 4 | Permanent compression set | 70℃x24h%≤ | 35 | 35 | |
| 23℃x168h%≤ | 20 | 20 | |||
| 5 | Tear strength N/m≥ | 35 | 35 | ||
| 6 | Brittleness temperature ℃≤ | -45 | -40 | ||
| 7 | Hot air aging | 70℃x72h | Hardness variation | 8 | |
| Variation of tensile strength (lower) %≤ | 10 | | |||
| Variation of tensile yield(lower) %≤ | 20 | | |||
| 70℃x96h | Hardness variation | | 8 | ||
| Variation of tensile strength (lower) %≤ | | 10 | |||
| Variation of tensile yield(lower) %≤ | | 20 | |||
| 8 | Ozone aging 50pp 20% 48h | Grade 2 | 0 | ||
