| Test items | normal type | Reflective | protrusion |
| density | 1.8~2.3g/cm³ | ||
| Softening Point | 90~125℃ | ≥100℃ | |
| Coating Appearance | After drying, there should be no wrinkles, spots, air bubbles, cracks, peeling off, sticky tires, and the color and appearance of the coating film should not be much different from the standard board | ||
| Non-stick drying time | ≤3min | ||
| Chroma performance | White/Yellow: The chromaticity coordinates and lightness factor of the paint should meet the regulations | ||
| Compressive strength | ≥12Mpa | At 23°C±1°C, ≥12Mpa; at 50°C±2°C, ≥2Mpa | |
| Wear resistance (weight loss after 200r/1000g) | ≤80mg (JM-100 rubber grinding wheel) | - | |
| water resistance | Soaked in water for 24 hours, there should be no abnormal phenomenon | ||
| Alkali resistance | Immersed in calcium hydroxide saturated solution for 24 hours without any abnormal phenomenon | ||
| glass bead content | - | 18~25% | |
| Liquidity | 35±10s | - | |
| Coating Low Temperature Crack Resistance | Keep at -10°C for 4 hours, and place at room temperature for 4 hours as a cycle. After 3 consecutive cycles, there should be no cracks. | ||
| heating stability | Keep stirring at 200~220°C for 4 hours, there should be no obvious yellowing, coking, agglomeration, etc. | ||
| Artificially accelerated weather resistance | After the artificial accelerated weather resistance test, the coating of the test panel does not produce cracks or peeling; slight chalking and discoloration are allowed, the coordinates of monochromaticity should meet the requirements, and the range of brightness factor change should not be greater than 20% of the brightness factor of the original sample | ||
Cheryl Roberts