PPS in Nickel Plating: Application Notes

PPS (Pyridinium, 1-(3-sulfopropyl)-, hydroxide, inner salt) is a strong leveling agent for bright nickel plating. Used with secondary brighteners such as acetylenic alcohols, ethers and their derivatives, it helps produce a smooth, mirror-bright surface. It has high purity, few decomposition products and good leveling at high current densities. Excessive addition may cause brittle deposits or dark spots in low-current-density areas. Match replenishment to bath analysis and the plating process. For specifications and source reference values, see the PPS product page. Evaluate additions against bath analysis and actual process conditions. Contact the technical team with your process and requirements. Source: Mengde PPS product information.