The electrochemical Tafel test was used to evaluate the anti-corrosive performance of epoxy-based coatings on steel substrate.The electrochemical measurements were carried out by using an electrochemical work station, Auto Lab PGSTAT30 Potentiostat (The Netherlands) equipped with the General Purpose Electrochemi-cal Software (GPES). The electrolyte was NaCl (3.5 wt.%) aqueous solution.