The Investigation of Zinc-Rich Paint (ZRP) Behavior in NaCl Solution by Electrochemical Methods
Zinc-rich paints are coating materials designed to improve corrosion especially in marine and saline environments. Two types of zinc-rich paints (ZRPs) were employed in this research: 74 % ZRP and 96 % ZRP. The effectiveness of zinc coating systems has been analyzed in 0.5 M NaCl solution. Corrosion protections of coated metallic substrates were investigated using polarization measurement and electrochemical impedance spectroscopy (EIS). Electrochemical test showed that metallic substrates coated with 96 % ZRP have better corrosion resistance (galvanic protection) while those coated with 74 % ZRP have better barrier effect.
KeywordsElectrochemical Impedance Spectroscopy Corrosion Protection Metallic Substrate Zinc Coating Capacitive Loop
- 1.Kruba L, Stucker P, Schuster T (2005) Less metal, more protection. Eur Coat J 10:38–43Google Scholar
- 2.Eliasson J (2003) Prevention and management of marine corrosion. In: Intertanko presentation, Lloyd’s list events conference (economics of coatings/corrosion protection of ships selecting the correct type of anticorrosion protection for underwater application on new buildings) April 2 and 3, 2003, LondonGoogle Scholar
- 3.Brodd RJ, Leger VE, Bard AJ (eds) (1976) Encyclopedia of electrochemistry of the elements, vol 6. Marcel Decker, New York, p 35Google Scholar
- 4.Munger CG, Vincent LD (1999) Corrosion prevention by protective coatings, 2nd edn. NACE, USAGoogle Scholar
- 5.Karakasch N (2001) Zinc coating review-2000 and beyond. Corrosion Manage 10(1):3Google Scholar