How to mark the polishing accuracy, which grades and how to distinguish it.

Tools: polishing machine (vertical and horizontal), wool ball, sea ball, nano towel, shielding film, white tape. Material: abrasive (coarse, medium and fine) polishing function: solve the deep-seated problems that affect the appearance of paint, such as oxide layer, stripes, pollution and fading. Polishing force principle: from heavy to light, gravity grinding, light lifting. Three links of polishing: (1) the specific meaning and quality standard of each link: 1. Polishing: Remove the dirt on the paint surface through surface pretreatment, eliminate serious oxidation and micro-scratches or alleviate surface defects. Quality standard: the paint surface has no defects such as oxide layer, stripes, pollution and fading. 2. Polishing: Polishing is to further smooth the polished paint surface. Remove the residual stripes of polishing, and the polishing agent makes the gloss of paint surface appear naturally. Quality standard: Remove the secondary scratches on the paint surface caused by abrasive. 3, restore: find the original color of the car paint and restore it to the same state as a new car. Quality standard: the gloss is obviously improved compared with that before polishing, and the reflection is clearly visible. In order to determine the type of abrasive used, it is necessary to judge the paint problem. Use abrasives in small areas in unknown places. Light abrasives are preferred as abrasives. If the paint surface is seriously defective, consider medium or heavy abrasives. Note: 1. When polishing, we must adhere to the principle of "rather slow than fast, rather light than heavy" to avoid exposing the primer. 2. Neutral abrasive is the best polishing material for paint care. 3, it is forbidden to rough grinding when polishing. 4, the wire back up, so as not to hurt people, machine, winding, it is forbidden to wire contact. 5. After the abrasive is applied to the paint surface, throw it first to prevent the paint surface from splashing. 6, paint must be clean, avoid other items on it, dirty paint. 7. When swinging the front cover, cover the front glass with a large towel (2m long) or a shielding film to prevent abrasive from sticking to the glass sealing strip and wiper. 8. Apply a proper amount of abrasive on the lathe bed, compact the polishing machine on the abrasive, then start the machine to rotate and throw it around. 9, make the abrasive evenly coated on the hair ball, to prevent splashing, waste of materials. 10. Place the machine correctly, with two handles on the ground and the hair wheel facing up.