What Are the Functions of Car Polishing?
2 Answers
Here are the functions of car polishing: 1. Used to reduce the surface roughness of the car, obtaining a bright and smooth surface. 2. Removes issues affecting the paint appearance, such as the oxidized layer on the paint surface, shallow scratches, and loss of gloss caused by oxidation. Here are methods for polishing different car problems: 1. Defect Removal: Spray a small amount of water on the paint surface, use P1500 pyramid sandpaper with a dry grinder to sand the entire surface once in each direction (up, down, left, right) until the paint surface becomes matte. After sanding, use a rubber squeegee to remove the white foam on the surface, observe the paint surface to identify prominent defects, then spray a small amount of water on the sanding disc to remove the defects. 2. Over-Sanded Paint Surface: Use a dry grinder with P3000 pyramid sanding disc and a dry sanding soft pad to sand the over-sanded paint surface. Spray a certain amount of water on the disc and paint surface, then sand the entire surface twice in each direction (up, down, left, right) at a faster speed. After sanding, use a rubber squeegee to remove surface water and white foam. Quality Standard: The paint surface should have no defects such as oxidation layers or scratches. 3. Coarse Wax Polishing: Further remove sandpaper marks after sanding to restore the paint surface's smoothness and initial gloss. Apply wax evenly on a certain area of the paint surface, with the polisher speed controlled between 1200-2000 RPM. Initially, apply medium-high pressure to the polishing pad and polish the paint surface evenly. Observe the paint surface, and once the sandpaper marks are noticeably removed, reduce the pressure to remove wax marks and restore some gloss to the paint surface. After polishing, use a microfiber cloth to clean residual coarse wax and dust from the paint surface.
As an ordinary office worker who has been driving for five years, the step I look forward to the most after a car detailing session is polishing. The main purpose of polishing is to restore the shine to the car's paint. Over time, an oxidation layer forms on the surface, making the car look dull. Using a professional polishing machine with a compound to gently buff the surface can eliminate those fine swirl marks and minor scratches. The effect of waxing after polishing is particularly good, as the wax layer can evenly adhere to the smooth paint surface. I recommend doing it once every spring, especially for white cars, which are prone to yellowing. After polishing, the whole car shines like it just rolled off the production line. Remember to find a reputable detailing shop, as rough handling can actually thin the paint. Also, avoid using coarse cloths when washing your car, as these small habits can help the polishing effects last longer.
