Do you have to grind the car before polishing?
1. Clean the whole vehicle. Clean the whole car with a strong paint cleaning agent. When cleaning agents are used, dust particles should be avoided to cause new scratches in the process of grinding.2, water sandpaper. For the painted surface coarse, fine sandpaper marks, flow marks, in polishing before using 600#~1000# water water sandpaper wrapped in a small rubber pad, the grinding gently to a flat (not worn paint).3, coarse and fine grinding. Using machine grinding machine (electric or pneumatic) plus coarse grinding paste, the water sand paper traces of rough grinding, and then add abrasive paste polishing, polishing, fine grinding.
Polish if you use polishing agent, otherwise it will soon leak.I've been polishing for months, but it was a long time ago, and I don't know if the technology is improving now.Repair car scratches should first see if it has cracked primer, if it has been painted in the end, you have to paint first, and then polished. No, first with a very fine sandpaper, more than 1000 mesh, carefully scratch the first gently polished, and then carefully polished on it, be careful, otherwise you will throw paint leakage. After polishing, waxing, OK.
Polish. Using mechanical polishing machine, coupled with mirror treatment agent, throw the rough grinding paste to leave the spiral imprint, to achieve the mirror surface polishing effect.5 hand polish. After grinding and polishing, wipe the grinding and polishing paste immediately, dip the cotton oil on the polishing wax, wipe all the polishing parts, and then wipe the excess polish with dry cotton yarn, make the paint bright and mirror like, and dazzling.
Yes, the car needs polishing before polishing.The surface of the car by spraying, may appear coarse, fine sandpaper mark, flow mark, white, orange and other defects in the film surface, in order to remedy these defects, usually for grinding polishing after spraying in the car, in order to improve the film mirror effect, is bright, smooth, bright requirements.
