Thick coating of plastic coatings is an important method in the painting process, characterized by a thicker coating film and a series of significant advantages. First of all, the thick coated plastic coating has good durability and anti-aging performance, especially in the harsh climate environment, its performance is particularly prominent. This durability is mainly due to the effective protection of the plastic surface by the thick coating film, which enables it to maintain good appearance and performance for a long time. Secondly, thick coated films have strong impact resistance and are not easily affected by external forces, which helps to protect plastic substrates from damage. In addition, thick coating can better maintain the brightness of the color, prevent fading, and make the color on the plastic surface more vivid and long-lasting.