Die castings often need surface treatment since they need to be surface-decorated and have anti-corrosion properties. The following provides an overview of several processes:
Aluminum alloys have better corrosion resistance and can be passivated, or only light treatment can be applied; magnesium alloy parts must be treated with a film due to their active nature. Passivation (film) is primarily used in internal components; aluminum alloys have better corrosion resistance and can be passivated, or only light treatment can be applied.
Spray paint, often known as spray liquid paint, may produce a wide range of hues and textures.
Spraying powder to create a coating allows for a wide range of colors.
Aluminum alloy and magnesium alloy have a fairly limited range of applications, but items made of zinc alloy may be electroplated in a variety of colors.
There are currently numerous limitations on die-casting aluminum alloys, but anodizing - aluminum alloy goods may achieve a variety of colors and the metal texture will not be obscured.
Sandblasting - Can produce a surface that is more textured and rough.