Evonik is the sole North American producer of quality ammonium, potassium and sodium persulfates, specially designed for the cleaning and preparation of printed circuit boards (PCBs). Thermally stable, economical, and an ability to maintain an extended shelf life are just a few qualities that make our printed circuit board etching chemistries stand out from the rest
The oxidation power of persulfates is used to clean and microetch a variety of printed circuit board substrates. Persulfates are important oxidants in plating and coating processes. They are also etchants for nickel, titanium, and zinc alloys. Persulfates are used to clean and mill aluminum, brass, copper, and many other metal surfaces prior to plating or adhesive bonding.