What Causes Car Paint to Peel?

[DeJasper]

Car paint peeling can be caused by poor surface preparation, improper primer application methods, and other factors. The specific causes of car paint peeling and preventive measures are as follows: Specific causes of car paint peeling: Poor surface preparation, contaminated by wax, grease, water, rust, etc.; failure to use a metal surface treatment agent on steel or aluminum surfaces, or using the wrong type of treatment agent; substrate surface temperature being too high or too low during painting; improper primer application method, using the wrong type or poor-quality thinner; excessively high compressed air pressure. Preventive measures for car paint peeling: Thoroughly prepare the substrate surface before painting; always use the correct metal surface treatment agent on steel or aluminum surfaces, and begin painting within 30 minutes after treatment to prevent rust; ensure painting and drying are conducted within the recommended temperature range; use the correct process to apply primer, ensuring the primer layer is fully cured before applying the topcoat.