Corrosion performance of zinc-rich paints (ZRP) on mild steel in NaCl solution

Zinc rich paints (ZRP) are one of the most effective coatings used to protect steel from corrosion and they have been studied under severe environment like sea water, marine and industrial environments. Classic solvent based paint contributes to the increasing of harmful volatile organic compounds (VOC) to the environment have been a major problem. Here we focus on the corrosion behavior of an epoxy based ZRP with less organic solvent so they keep on with environment standards was studied. In this work, metal substrate was coated with 1, 3 and 5 coatings of ZRP and the cross section of the coating was observed by means of scanning electron microscopy (SEM). Electrochemical behaviors were compared, using potential corrosion measurement system.