Iron, black dyeing <iron kettle> metal surface treatment

It blackens the steel and forms a 1μ oxide film on the surface to prevent rust. It also aims to enhance aesthetics (visual beauty).

The chemical reaction of black dyeing forms a 1μ oxide film on the surface of steel products, enhancing their rust resistance. Since painting is a topcoat, it causes dimensional changes, but black dyeing penetrates the item itself, resulting in minimal changes to the original dimensions, making it suitable for items that require dimensional accuracy. It improves rust prevention (rust stopping) and aesthetics (visual beauty) of iron and steel products, as well as suppresses light reflection. Additionally, our company hand washes each item for black dyeing, especially for complex shapes like machine parts or items prone to drug accumulation, resulting in clean products that are less likely to retain chemicals. <Other names for black dyeing> Ferric oxide treatment, ferric oxide treatment, Fe304, alkaline coloring.

Processing Contract