都南ビーピー List of Products and Services

Chrome plating is adopted in various industries for its color tone and corrosion resistance. The Pyroalloy SC process introduced here is an environmentally friendly surface treatment that does not contain harmful substances during the process or in the coating. Unlike chrome plating, it can be processed in a barrel, allowing for the plating of small items such as screws. In recent years, concerns have arisen regarding the use of hexavalent chromium in the chrome plating process due to environmental issues, but our product is very easy to handle. ● For more details, please download the catalog or contact us.

• Other metal materials

Black nickel has a distinctive appearance, and we have decided to process black nickel of the tin-nickel alloy type. With the growing awareness of environmental issues and the demands of customers, there has been a desire for even higher quality products. Our company has decided to process black nickel of the tin-nickel alloy type to supply higher quality products. It is a very easy-to-handle product. ● For more details, please download the catalog or contact us.

• Other metal materials

Our company implements quality control to supply safer products, obtains customer certification, and provides products accordingly. Hexavalent chromium is used in black chromate (black zinc) as a rust prevention treatment coating. With the increasing awareness of environmental issues and the demands of customers, there has been a growing need for higher quality and safer products, starting with the RoHS directive. To meet this demand, we supply products that have a hexavalent chromium-free black conversion treatment coating (trivalent black chromate) with an appearance equivalent to conventional black chromate. This product is particularly safe, meeting the EN15205 standard of 0.1μg/cm² for hexavalent chromium leaching. It is very easy to handle. For more details, please download the catalog or contact us.

• Other metal materials

Chromate is used as a rust prevention treatment coating. With the rise in awareness of environmental issues and the demands of customers, there has been a growing desire for higher quality and safer products, starting with the RoHS directive. To supply safer products, we implement quality control, obtain customer certification, and provide our products. Our products do not contain hazardous substances or regulated substances such as RoHS target substances and PFOS compounds. The coating is primarily composed of trivalent chromium and inorganic materials. It has a characteristic of being more resistant to heating after treatment compared to chromate. It is a particularly safe product that meets the EN15205 standard of 0.1μg/cm² for hexavalent chromium leaching. It is very easy to handle. ● For more details, please download the catalog or contact us.

• Other metal materials

Our company's non-chromate treatment complies with RoHS (EN 15205), PFOS, and other customer requirements, achieving high corrosion resistance, environmental compatibility, and safety. 【Features】 ■ Trivalent Chromate / Trivalent Black Chromate ■ Environmental Compatibility… Does not contain harmful substances or regulated substances such as RoHS target substances and PFOS. Safety… A particularly safe product that meets the EN 15205 standard of 0.1μg/cm² for hexavalent chromium leaching. Corrosion Resistance, Conductivity, Torque Coefficient… Comparable to chromate (verified by salt spray testing). Main Components… Trivalent chromium and inorganic materials.

• Surface treatment contract service