Polymax® PA-31 is a low foaming electroplating additive. Polymax® PA-31 adds grain refinement in mat systems and leveling properties in bright systems. This product has utility in acid tin, tin/lead and zinc systems.
Polymax® PA-31 belongs to a line of products developed for plating applications. The Polymax® materials offer a variety of functions in both electroless and electrolytic plating baths. Low treat rates and a diversity of chemistries offer economic and formulation options in numerous types of baths.
Polymax® PA-31 is a highly acid compatible surfactant used commonly used in acid tin, tin/lead, and zinc systems at a recommended use level of 0.03-0.05 g/l. In mat systems, it offers outstanding grain refinement and provides leveling properties to bright systems. Polymax® PA-31 exhibits an aqueous cloud point slightly below 100°C, but still offers a low foam profile. The product is also effective at elevated ambient temperatures.
Polymax® PA-31 is a polyethoxylated beta naphthol. The nonionic nature of the product makes it readily compatible with a variety of traditional plating additives including boric acid, MSA, and sulfamic acid as well as brightener packages including benzylidene acetone.