The quality problem that should be paid attention to in the construction of mixed-color paint applied to metal surfaces

China Paint Online News Information:
1, the construction site should be kept clean, well ventilated, not dusty. Paint should be used before filtering impurities, grinding work should be careful to ensure smooth, avoid the surface of the living paint rough.
2, the deployment of coatings, should pay attention to the matching of products, strict control of the concentration of paint, not too thin or too thick, filling reinforcement agent, drying agent and thinner proportion should be appropriate. To prevent wrinkles, orange peels, and pendants after brushing (spraying).
3, brush (spray) paint, each should not be too thick too heavy, should strictly control the interval. Spraying should control the spray gun pressure and spray distance, to avoid causing orange peel, pendant, wrap and other problems
4, painting, should pay attention to the door and window of the upper and lower head, close to the small surface and door and window frame, the end of the bar to be painted in place. Before the installation of doors and windows and yarn doors, screens before the yarn, should first brush the paint, to avoid installation, yarn after the oilman can not work, resulting in leakage brush.
5, metal base surface should be carefully removed before painting rust, painting anti-rust coating, in order to prevent anti-rust.
6, before painting should be the end groove, up and down head, frame joints, nail holes, stitches and edge bruises and other places, careful sanding, putty and sandpaper polishing. Prevent defects such as uneven, not only, scarring, etc.
7, brush paint, bristles apply thin material bubble soft after use, should use wool plate brush, should not use brown brush. Avoid obvious brush marks on the surface due to too hard bristles and too thick paint.
8, work, metal pieces, different color lines to be carefully constructed, and cover protection, to avoid causing color lines are not clear, not straight and paint cross-border pollution phenomenon.
9, rainy season construction should control the air humidity at the job site, and use a hygrometer for testing. When the air humidity exceeds the prescribed requirements, a suitable amount of drying agent can be added to the paint to prevent the paint film whitening after completion.