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In theory, it is feasible to spray 2K car paint on 1K car paint. 2K paint has strong adhesion and can cover 1K paint to form a strong paint film. Before spraying 2K paint, make sure that the 1K paint has been completely cured, otherwise it may cause the paint film to be unstable or fall off.

After spraying, the paint film needs to dry naturally. 1K color paint usually dries within 20-30 minutes, and it takes 1-2 hours to dry completely. The surface drying time of 1K clearcoat is about 10-20 minutes, and it takes 24 hours to dry completely.

If the budget is limited and the repair scope is small, 1K paint is an affordable choice. If the budget is sufficient and the paint film performance requirements are high, it is recommended to choose 2K paint. Although the price is higher, its excellent durability is worth the investment.

● 1K color paint: The mixing ratio of 1K color paint and thinner is usually 4:1, that is, 4 parts of 1K color paint to 1 part of thinner. ● 1K clearcoat: The mixing ratio of 1K clearcoat and thinner is usually 2:1, that is, 2 parts of 1K clearcoat to 1 part of thinner.

● 1K car paint: The label will be marked as "1K" or "single-component paint", and no curing agent needs to be added. ● 2K car paint: The label will be marked as "2K" or "two-component paint", which needs to be mixed with curing agent in proportion.

The "1K" in 1k automotive paint stands for "one-component", which means that this paint does not require mixing hardeners or other ingredients before use. 1k car paint is a pre-mixed paint that can be used right out of the can, which greatly facilitates construction and application.