We are considering starting a passivation line for a valued customer of ours. Currently, we specialize only in aluminum anodizing, and working with stainless steel would be new. Our customer would prefer a citric acid passivation process, and we would prefer that method as well, mainly due to environmental considerations. E.E.
I commented on the citric acid passivation process in the March 2005 Plating Clinic column. You can find this article as well additional information on the process by doing a search at www.pfonline.com using the term citric acid passivation. Much additional information can be found by “Googling” the same term.