What Causes Pitting on the Paint Surface After Spray Painting?

[McKate]

The reasons for pitting on the paint surface after spray painting are as follows: 1. Dust contamination: Pitting occurs when dust settles on the paint after spraying. Painting should ideally be done in a well-sealed paint booth. Pitting and lack of gloss after car painting can also result from overly thick paint or high temperatures. Paint is sprayed as fine particles that adhere to the car body and require time to flow and bond together to form a smooth paint film. 2. High paint concentration: If the granular paint adhering to the car body solidifies before forming a film, the paint surface becomes uneven, resulting in pitting. High external temperatures can cause the thinner in the paint to partially evaporate before the paint reaches the car body, increasing the concentration of the paint that does make contact. This leads to premature solidification before a smooth film can form, causing pitting. 3. High car body temperature: If the car body itself is too hot, the paint adhering to it may solidify before forming a smooth base layer, resulting in an uneven paint surface with pitting.