Does Car Polishing Have a Significant Impact on the Paint?

[Myrtle]

Car polishing has minimal impact on the paint. Polishing refers to the process of using mechanical, chemical, or electrochemical actions to reduce the surface roughness of a workpiece, thereby achieving a bright and smooth surface. The method for car polishing and waxing is as follows: 1. Use tape to mark off the areas that need waxing; 2. Pour an appropriate amount of polishing compound onto a green sponge block; 3. Wipe back and forth in a straight line along the areas with scratches; 4. After a few minutes, wipe clean with a soft cloth; 5. After wiping, check the waxing effect. Precautions for car polishing and waxing include: 1. Ensure the car body is dry before waxing—no water should be present; 2. The waxing environment should be clean and equipped with good ventilation and filtration; 3. Polishing should follow the order of wax application; 4. Polishing should be performed within the specified time after waxing is completed; 5. After waxing, clean and properly store all equipment and materials.

[Emil]

Polishing is something I've learned a lot about after driving for ten years. When I first got my new car, I was also superstitious about polishing and did it every three months. The surface did shine like a mirror. But later, I noticed the paint on the roof started to look dull. An experienced mechanic told me it was because excessive polishing had worn down the clear coat, allowing UV rays to penetrate. Actually, car paint consists of a color layer and a transparent protective layer, and polishing essentially grinds away that top clear film. The key lies in the technician's skill and the tools used—whether coarse abrasives or fine finishing compounds make a huge difference. Now, I only polish once every two years and immediately apply sealant or ceramic coating afterward. Measurements with a paint thickness gauge show almost no reduction in the clear coat. Regular waxing is the most practical way to protect the paint in daily use.

[McOmar]

Honestly, polishing is essentially physical friction repair. It feels great to watch those swirl marks and light scratches disappear from the car body, but each polishing session removes at least 3 to 5 microns of paint. The clear coat on new cars is generally around 100 microns thick—do it ten times and you'll hit bare metal. I once bought a dual-action polisher for experiments, pairing different wool pads with all-in-one compounds, and found that the most obvious side effect of over-polishing is the paint becoming brittle. Water spots seep in as soon as the sun hits them, and car wash residue becomes harder to clean. Nowadays, I advise friends to use a DA (dual-action) machine instead of an RO (rotary) machine, paired with ultra-fine finishing compounds for safer results. Remember: dark-colored cars, once a year max; light-colored cars can handle once every two years.

[Julie]

Polishing is like giving your car a facial peel—it shows immediate results but don't get addicted. I've seen too many people rush to polish their cars the moment they lose shine, only to end up with paint as rough as sandpaper after two or three years. In reality, most scratches can be concealed with scratch wax. If you must polish, remember three things: avoid doing it under scorching sun; wait until protective coatings like ceramic coatings wear off; and allow newly repainted areas to cure for at least two months. My personal rule? No polishing for cars under five years old—regular use of non-abrasive liquid wax preserves value better.

[VanMargaret]

During a visit to the 4S dealership's service area, I was greatly inspired by a technician measuring paint thickness on a polished Audi. The factory clear coat is 120 microns, and after ten polishing sessions, when it drops below 80 microns, the resistance to stone chips significantly decreases. Now, I always have the technician check the thickness before polishing—if it's under 80 microns, I refuse the service. My daily maintenance tips: remove bird droppings and tree sap the same day; avoid using cleaning wax when washing the car; apply a titanium dioxide-infused wax every two months. As long as you don't scratch with your nails, these practices can keep your car's paint shiny for five years without needing a polish.

[AsherLynn]

I remember once helping a friend buy a used car, and we came across a heavily polished Magotan that was a complete disaster. Not only did the entire car have orange peel texture, but the clear coat on the fenders had turned semi-transparent. In reality, car paint is like a sandwich: it consists of an electrocoat layer, primer, base coat, and clear coat. Polishing only affects the topmost layer, but if you grind too aggressively, the base coat gets directly exposed. Nowadays, it's recommended to first try a localized restoration using a mirror-finish compound with over 80% coverage rate, paired with an infrared heating lamp to reduce polishing time. However, the most crucial aspect is prevention at the source—parking away from areas prone to branch scratches and using a pre-wash solution to soften dirt during car washes. These small habits can save you from multiple polishing sessions.