Matters needing attention in the production of PU paint bright series
- 2021-12-17-
1. Because the PU paint bright series has a longer drying time than the matte series, it is necessary to ensure that the surface of the bright paint is free of impurities, and the sealing and cleanliness of the spray booth are stricter. In addition, it should be noted that when doing sanitation, most of them will sprinkle water on the floor of the dry room or rinse the room with water, because the dry room itself is better closed and the temperature is relatively high, which will form a high temperature and high humidity environment, making the gloss paint Dark bubbles are more likely to occur. Therefore, it is recommended that the temperature of the drying room be controlled at about 25 degrees, which will increase the qualified rate of the product.
2. In the production of leather or sticker furniture, the sealing treatment of the substrate and the primer selected on the paper will affect the gloss of the bright paint. The dry ordinary PU primer has poor solvent resistance, and the bright light on it will easily cause flow. The flatness is poor, the surface unevenness and the maintenance of gloss and fullness will be significantly poor. Therefore, if you want to get a better mirror effect, you should increase the amount of primer curing agent appropriately to improve the surface effect of the topcoat. There will be improvement.