A study on zinc rich paint (ZRP) and its behaviors of protecting JIS SS400 constructional steel against impacts of industrial port environment at Phu My port (Ba Ria - Vung Tau Province, Vietnam) was started in January 2014. After three years of investigation, thickness of ZRP decreased slowly and the reduction reached to 38 µm and 31 µm in atmospheric and tidal zone, respectively. Moreover, in accelerated environmental conditioning tests, separation and failures of ZRP from steel substrate were responsible for blistering. By comparison of field exposure test and accelerating test, growth of blistering on ZRP is caused by high temperature and time of wetness. | Vietnam Journal of Science and Technology 55 (5B) (2017) 194-202 DIFFERENT BEHAVIORS OF ZINC RICH PAINT AGAINST CORROSION IN ATMOSPHERIC ZONE AND TIDAL ZONE OF INDUSTRIAL PORT ENVIRONMENT Vinh-Dat Vuong1, 2, 3, Anh Quang Vu2, Hoang-Nam Nguyen4, Thang Van Le1, 2, * 1 Materials Technology Laboratory, HCMUT-VNUHCM 268 Ly Thuong Kiet Street, Ward 14, District 10, Ho Chi Minh City, Viet Nam 2 Department of Energy Materials, Faculty of Materials Technology, HCMUT-VNUHCM 268 Ly Thuong Kiet Street, Ward 14, District 10, Ho Chi Minh City, Viet Nam 3 Graduate University of Science and Technology, Vietnam Academy of Science and Technology 18 Hoang Quoc Viet Street, Cau Giay District, Ha Noi City, Viet Nam 4 School of Electrical Engineering, Hanoi University of Science and Technology 1 Dai Co Viet Street, Ha Ba Trung District, Ha Noi City, Viet Nam * Email: vanthang@ Received: 11 August 2017; Accepted for publication: 8 October 2017 ABSTRACT A study on zinc rich paint (ZRP) and its behaviors of protecting JIS SS400 constructional steel against impacts of industrial port environment at Phu My port (Ba Ria - Vung Tau Province, Vietnam) was started in January 2014. After three years of investigation, thickness of ZRP decreased slowly and the reduction reached to 38 µm and 31 µm in atmospheric and tidal zone, respectively. Moreover, in accelerated environmental conditioning tests, separation and failures of ZRP from steel substrate were responsible for blistering. By comparison of field exposure test and accelerating test, growth of blistering on ZRP is caused by high temperature and time of wetness. Keywords: zinc rich paint, JIS-SS400 steel, accelerated environmental tests, brackish environment, industrial port. 1. INTRODUCTION Generally, the ability of coating materials to protect metallic structures against impacts of environments depends on their characteristics, as well as on properties of bonding interface between coating layers and metal substrate. For
