What Causes Small Bubbles in Car Paint?
3 Answers
Small bubbles in car paint may be caused by excessively thick paint film application, incorrect spray viscosity, or improper spray pressure. Here is some relevant information about automotive painting: 1. Purpose of Automotive Painting: Automotive painting involves applying a layer of paint to the car's surface to achieve a protective effect. 2. Types of Automotive Paint: Car paints are categorized into standard paint, metallic paint, pearl paint, etc. 3. Precautions for Automotive Painting: Before painting, it's essential to treat areas that are difficult to spray, such as the engine hood, trunk, and door edges, by spraying these challenging spots first.
I pay quite a bit of attention to car detailing. Small bubbles in the car paint are quite common, mostly due to improper handling of the base layer during the painting process. For example, if there's dust or grease on the car body that wasn't cleaned properly before painting, moisture can seep in and form bubbles. Sudden temperature changes on hot days can cause the paint surface to expand and contract, leading to small bubbles as well. Even new cars with factory paint can develop this issue early if the environment is humid during painting. As for older cars, as the paint ages, the film becomes thinner or develops fine cracks, allowing rainwater to seep in and accumulate over time, eventually causing bubbles. My advice is to address any bubbling as soon as it's noticed by sanding and treating the small affected areas to prevent spreading and rust, which can affect the car's appearance and value. For daily care, park in dry, well-ventilated areas and make sure to dry seams thoroughly after washing to prevent water retention.
As a car owner, preventing paint bubbling is part of my daily routine. The main causes are residual impurities in the paint base layer or moisture intrusion, especially after heavy rain or in humid environments. Every time I wash my car, I carefully dry the door edges and wheel arches with a soft cloth to prevent water from seeping under the paint. I avoid parking under trees or in areas with bird droppings, as organic dirt can corrode the paint and cause bubbling. Regular waxing forms a protective layer, reducing the risk of oxidation. After painting, I wait at least a few days for it to dry completely before using the car outdoors. If I notice small bubbles, I address them immediately with local repairs to avoid costly and time-consuming full repainting. Parking in the shade during summer also helps prevent paint blistering caused by temperature differences.
