Analysis of the Effect of Shop Primer on the Adhesion of Fuel Oil Tank Paint on Hospital Auxiliary Ships
Imah Luluk Kusminah1,b), Dika Rahayu Widiana2,a), Am Maisarah Disrinama3,b), Endang Fitria Rahmawati4,b), Laili Fitria5,b), and Ersa Mei Dwiningsih6

1Department of Welding Fabrication and Engineering, Politeknik Perkapalan Negeri Surabaya, Surabaya, 60111, Indonesia
2Magister of Safety and Risk Engineering, Politeknik Perkapalan Negeri Surabaya, Surabaya, 60111, Indonesia
3Department of Occupational Safety and Health Engineering, Politeknik Perkapalan Negeri Surabaya, Surabaya, 60111, Indonesia
4 Department of Environmental Engineering, Chung Yuan Christian University, Taoyuan 32023, Taiwan
5 Department of Environmental Engineering, Tanjungpura University, Pontianak 78124, Indonesia
6Department of Design and Construction Engineering, Politeknik Perkapalan Negeri Surabaya, Surabaya, 60111,

Abstract

Steel is widely used as a raw material for shipbuilding in the marine industry. One is the Hospital Auxiliary Ship, which uses steel as its fuel tank material. Steel is susceptible to corrosion, so the material requires coatings to protect it from the effects of corrosion. This study covered the materials with primary deposits before fabrication to provide temporary protection during material storage and construction. After constructing the fuel tank, the entire surface of the material is covered with anticorrosion paint. The shop coat of primer was removed following SSPC SP10/NACE2/SA2.5 surface cleanliness standards. Next, the paint adhesion test was carried out by varying the remaining primer to 0%, 50% and 100%. The paint shop primer used is anticorrosion paint Jotun Muki Z and Jotun Tankguard HB Classic. The paint adhesion test uses the pull-off adhesion test method according to ASTM D-4541. The results of the paint adhesion test on materials without primer residue were 14.3 MPa, materials with 50% primer residue were 7.25 MPa, and materials with complete shop primer were 6.06 MPa. The material that has the best adhesion is material without a primary shop.

Keywords: Coating, Corrosion, Jotun Paint, Pull Off Test, Shop Primer

Topic: Materials Science