Air pollution, salt exposure, weather patterns, design and cleaning frequency must be considered when selecting stainless steel and other construction materials if good long term performance is desired. IMOA has created a library of resources on this website to provide industry professionals with the information needed to make good stainless steel selection decisions.
In applications with coastal or deicing salt, industrial pollution, volcanic or other corrosive environment exposure, a molybdenum-containing stainless steel with a smooth surface finish is needed unless frequent cleaning is acceptable. Molybdenum improves pitting and crevice corrosion resistance, which is particularly helpful in preventing staining due to salt and corrosive pollution damage.