[Case Study of Conductive Diamond Technology] Pre-treatment for Plating on PPS Resin

Chrome-free, heavy metal-free resin plating pre-treatment technology

We would like to introduce a case study of conductive diamond technology that has realized an alternative to chromic acid used in the plating process of automotive parts. PPS is a super engineering plastic that is lightweight and excels in heat resistance, durability, and chemical resistance. However, since plastic transmits electromagnetic waves, when used for enclosures of electronic devices, it is necessary to form a metallic thin film on the surface to provide a shielding effect and prevent malfunctions caused by electromagnetic interference. Due to its high chemical resistance, PPS is a material that is very difficult to plate using conventional processes. However, by using an electrolytic treatment with a sulfuric acid solution as a pre-plating treatment, it is possible to achieve the formation of a highly adhesive plating layer. This technology uses a solution electrolyzed with a diamond electrode in sulfuric acid, making it a clean and environmentally friendly alternative technology that does not involve toxicity or waste. Additionally, since the sulfuric acid solution can be reused, it helps reduce wastewater. *For more details, please download the PDF or feel free to contact us.

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