What Causes Bubbles in Car Paint?
2 Answers
Mainly due to the relatively poor sealing capability of the intermediate coating, which allows moisture to remain in the primer and intermediate paint layers. Below is relevant information about car paint: Introduction: Automotive paint refers to the coating applied to vehicles, which is a type of paint. Function: Applying paint to a car not only forms a protective film on the body surface, making it less susceptible to corrosion and extending the vehicle's lifespan, but also provides aesthetic enjoyment. Different types of automotive paint produce different effects. Choosing various paint types and colors can showcase the car's unique personality, making automotive paint crucial to the vehicle itself.
I've noticed that car paint bubbling is quite common, especially in vehicles that have been driven for many years. These bubbles are usually caused by moisture accumulation beneath the paint layer, such as when rainwater seeps into tiny scratches or gaps. Over time, rust forms and expands, pushing the paint upward. Another possible cause is improper surface cleaning during paint repairs, where residual dust or moisture leads to poor paint adhesion. Last winter, my own car was parked outdoors, and after washing, it wasn't completely dry before freezing, resulting in bubbles appearing within two to three weeks. For treatment, it's best to visit a professional shop to sand down the bubbled area, remove the rust, and respray new paint; otherwise, the damage can spread and ruin the entire body. Prevention is simple: avoid parking in damp places for extended periods, wash and dry the car regularly, apply wax every six months for extra protection, and address minor scratches before they become major issues. The key is to handle early damage promptly, saving both money and hassle.
