No. | Test item name | Standard Requirements and Standard Terms Number | results of testing | in conclusion |
1 | The status in the container | After stirring, it is in a homogeneous liquid state or a thick fluid state without agglomeration. | After stirring, it became a homogeneous liquid without caking. | qualified |
2 | Drying time (dry) | ≤12h | 8h | qualified |
3 | Initial dry crack resistance | Allow 1 to 3 cracks, the width should be ≤ 0.5mm. | No crack | qualified |
4 | Bond strength | ≥0.15MPa | 1.12MPa | qualified |
5 | Water resistance | ≥24h The coating should be free from layering, foaming and peeling. | Soaked for 24h, the coating did not rise, foam, fall off. | qualified |
6 | Cold and heat cycle resistance | ≥ 15 times The coating should have no cracking, peeling or blistering. | After 15 cycles, the coating did not crack, peel off or blisters. | qualified |
7 | Fire resistance | When the coating thickness is not more than (5.0±0.5) mm, the fire resistance limit should not be less than 1.0h. Fire resistance determination: Loss of carrying capacity - The maximum deflection of the coated steel beam is L0/20 (L0 is the span of the steel beam in mm). |
The measured coating thickness was 4.7 mm, the fire resistance test was carried out until 160 min, and the fire endurance was equal to 2.7 h. | qualified |