How to Deal with Paint Bubbling on Car?

[DeRyan]

For paint bubbling on a car, the bubbled paint area should be scraped off, rust-proof treatment applied, followed by filling with body filler. After the body filler has completely dried, sand it smooth, and finally spray the car paint. Below are the reasons for paint bubbling: 1. Poor paint quality: Paint bubbling may be due to inferior paint quality. In such cases, a claim can be made. It's best to have it assessed at a professional repair shop or 4S store and handled by professionals. 2. Issues during the repainting process: If the primer is not dry before the topcoat is applied during repainting, moisture trapped between the topcoat and body filler can evaporate under high temperatures, creating air pockets that cause the paint to bubble. 3. Rust caused by moisture under the paint: If paint bubbling is not addressed promptly, it not only affects appearance but the bubbled area will gradually expand, eventually leading to paint cracking and peeling.