No. | Test Item | Unit | Standard Value | ||
1 | Appearance | - | A white color, no crust, impurities | ||
- | B black color, no crust, impurities | ||||
2 | Sagging | Vertical | mm | ≤3 | |
Horizontal | - | No deformation | |||
3 | Application time | min | ≥20 | ||
4 | Surface dry time | h | ≤2 | ||
5 | Elastic recovery | % | ≥80 | ||
6 |
Tensile bonding properties |
Ultimate tensile strength | Mpa | ≧0.60 | |
Maximum tensile rate | % | ≧50 | |||
Bond damage area | % | ≤10 | |||
7 | Tensile properties after water ultraviolet |
Ultimate tensile strength | Mpa | ≧0.45 | |
Maximum tensile rate | % | ≧40 | |||
Bond damage area | % | ≤30 | |||
Remark | The above specifications are tested according to weight rate: A:B=12:1 |