Frigidaire-real-stainless-steel-protective-coating, see smudge-proof stainless steel kitchen appliances with a protective coating that make it easy to keep your kitchen looking beautiful at frigidaire.com.. Thanks for stopping by frigidaire to help you make the most of your time with us, begin by choosing your preferred site., stainless steel will degrade like all other architectural metals. the term "stainless" implies a resistance to staining, rusting and pitting. stainless steel generally has a higher resistance to the effects of exposure but will still be affected by the elements. stainless steel is susceptible to fingerprints and smudges.