What Causes Paint Bubbling on Car Surfaces?

[VonPatrick]

The causes of paint bubbling on car surfaces may include poor paint quality or improper repainting procedures where the primer wasn't fully dry before applying the topcoat, trapping moisture between the topcoat and body filler. When exposed to high temperatures, this moisture evaporates, creating air pockets that cause the paint to bubble. Additionally, rust formation due to moisture under the paint on metal surfaces can also lead to bubbling. Here are detailed solutions for addressing paint bubbling: 1. Rust prevention treatment: Remove the bubbled paint area, apply rust prevention treatment, then fill with body filler. After allowing the filler to dry completely, sand it smooth and finally respray the paint. 2. Paint quality issues: If the bubbling results from paint quality or repainting errors, you may file a claim. It's advisable to seek assessment at certified professional repair shops or 4S dealerships for expert handling.