What Causes White Spots on Car Paint?

1 Answers
CourtneyRose
07/30/25 8:43am
White spots on car paint can be caused by the following reasons: Reasons: Under humid and hot conditions, when the air humidity approaches saturation, tiny water droplets may mix into the damp air layer. The airflow from the spray gun and the evaporation of thinners can lower the surface temperature of the paint below the ambient temperature, causing moisture in the air to condense into droplets on the paint layer. Alternatively, it may occur due to excessively fast evaporation of spraying air pressure or thinners. Preventive Measures: During humid and hot seasons, early morning is the most suitable time for painting. Try to complete the work in the morning, make appropriate adjustments to the spray gun, and use proper painting techniques.
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