Why does black car paint appear dull and lose its shine?
1 Answers
Black car paint appearing dull and losing its shine may be caused by the following reasons: 1. Paint oxidation: Under the exposure to the sun's ultraviolet rays, the paint film continuously evaporates oils into the air to protect itself. Over time, excessive loss of oils from the paint surface can occur, significantly reducing the brightness and depth of the paint, causing it to slowly turn white. Severe oxidation can be treated through grinding and polishing. 2. Traffic 'film': While driving, friction generates a strong electrostatic layer on the car. Static electricity has a strong ability to attract dust, oil stains, and chemical particles, forming a hard traffic film over time. This can easily lead to oxidation and corrosion of the paint surface, which can be addressed with grinding and polishing. 3. Fading: Oil smoke and pollutants in the atmosphere are the main causes of paint fading and discoloration. Fading differs from oxidation; when fading occurs, uneven color differences appear on the paint. Moderate to mild fading can be treated with grinding and polishing, while severe cases require repainting. 4. Etching: Etching refers to surface abrasion. Insects, bird droppings, tree sap, tar, and asphalt can all cause etching. Only very slight etching can be resolved with grinding and polishing.
