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.
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basic information
This item originally had red rust, which has been removed and then treated with black dye. Iron is a relatively inexpensive material that is prone to rusting, leading to the formation of red rust. Therefore, by applying a black dye treatment, we can prevent the occurrence of red rust. Due to a chemical reaction, a 1μ thick oxide film is formed on the surface, so the dimensions hardly change. Since this is made of cast iron, even after black dyeing, it will have a reddish-brown finish. *Cast iron products will have this kind of reddish-brown finish.
Price range
Delivery Time
P3
Applications/Examples of results
All machines, tools, and precision parts that aim to improve aesthetics by being colored black, and those that require dimensional accuracy: - Bolts - Nuts - Screws - Machine parts - Wrenches - Scissors - Springs - Bobbins - Bicycle parts - Automobile parts - Precision instruments, etc.
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Company information
TM Corporation is a company that specializes in black dyeing and phosphating processing. We strive to protect the items infused with life during the processing stages from rust and to help maintain their precision. Being in an environment where we can engage with a variety of products in Sanjo City, Niigata Prefecture, a town known for its metalwork, we are committed to maximizing our know-how and continuously working towards further technological development. We accept processing from just one piece, so please feel free to contact us. Additionally, we also offer sample processing (for a fee) for first-time customers at any time.