The advantages of powder coating are many. The first is to paint the bento, and it does not smell like other paints when it is applied to the wall, and it is not easy to dry.
The larger the volume, the less filler in the powder coating and the higher the cost. The better the powder quality. The smaller the volume, the higher the filler in the powder coating, and the lower the cost. The worse the powder quality.
As for the powder produced by the dry mixing method, due to the separation phenomenon during the spraying and recycling process, the recycled powder and the new powder will have a certain difference in the metal pigment content, which may lead to a different appearance of the coating film and a color cast phenomenon.
Thermoplastic powder coatings have poor film appearance (gloss and leveling) and poor adhesion to metals, so they are rarely used in the field of automotive painting.
There is residual treatment liquid on the surface to be painted.
This article describes how to avoid caking in powder coatings
