Importance of Die Casting Surface Treatment

Update:Dec 11 2017

Once your part is cast, this process does not necessari […]

Once your part is cast, this process does not necessarily end. Many industrial operations choose to invest in the die-casting surface treatment of their parts. Although die casting surface treatments are not required, you or your customers may find it appealing by adding extra features, so adding exterior finishes to die castings can significantly improve the quality and value of the product.

Paint: Paint or powder coating paint is a natural coating used for die casting. When you paint or powder paint on pre-treated or untreated metal surfaces, you'll see a look that looks great and can be tailored to your brand.

Aluminum Passivation: This coating for aluminum parts, also called conversion coating, is a corrosion-resistant coating added to your part without impairing the part's electrical conductivity.

Anodizing: When coating metal parts, we often use three types of anodizing. Type I anodization, also known as chromic acid anodization, involves the use of toxic chromic acid and is therefore usually only used where maximum corrosion resistance is required. Type II anodization is the most common type, providing corrosion resistance while improving the appearance of the part. Type III or Hard Coating Anodization is a hard coating that significantly increases the part's surface hardness and reduces metal wear and tear.

Casting Impregnation: Some porosity is usually unavoidable during metal casting. In many cases, small pores do not significantly affect the structural integrity of your part and can be ignored. However, if your part must be absolutely strong and tight, you must take steps to eliminate porosity. Pour impregnation to fill and seal tiny voids in Die Casting that must be completely sealed.