Alternative Chromium(VI)-free pre-treatment processes for plating on plastics Biconex develops chromium(VI)-free and manganese-free pre-treatment processes for polymers, especially for the plating on plastics industry. We offer research and development services, plating for various polymers in our fully automated small scale plating facility and licenses of our environmentally friendly processes. Our preconditioning technology for ABS based polymers uses less bath stations than the state of the art with chromium(VI) and therefore fits in every existent production line. All chemicals can be processed in existing standard wastewater systems. Low temperatures and short processing times reduce energy costs and avoid any deformation of ABS parts during the process.