What Causes Car Paint to Bubble When It Rains and Disappear When It's Sunny?

[Pinto]

Bubbling in car paint is definitely caused by inferior paint combined with poor application, where the metal surface was not properly treated or rust-proof primer was not applied during the painting process. Here is some relevant information: 1. Overview: Automotive paint has undergone three major leaps in history: alkyd (enamel) paint in the 1920s; acrylic (enamel) paint in the 1960s; and clear coat (urethane) in the 1980s. In the 20th century, automotive technology made significant leaps. For easier understanding, automotive paint can be simply categorized into standard paint and clear coat. 2. Function: Automotive paint is a protective film sprayed onto cars, a type of coating that makes the car body less susceptible to corrosion and enhances its aesthetic appeal. Different automotive paints produce different effects, and the quality of the paint itself, along with the techniques used and a proper painting environment, is crucial.