This report basically discusses the research done and basic understanding of the chosen
topic, which is Study on Epoxy Mastic Coating of Submerge Structure (Jackets, Buoy,
and Ballast Tank). The objective of the project is to study the performance the chosen
coating with different surface roughness and the corrosion properties of the sample. This
study also includes the effect of barnacle to the coating system especially in the marine
environment. Submerge structure e.g. jackets of offshore platform, buoy, and also ballast
tank wiii fail when painting or coating failure. When coating fail, seawater corrosion,
oxygen corrosion and microbiologically induced corrosion (MIC) wiii contribute and
lead to the mass failure. Corrosion is the main threat in the oil and gas industries and
miiiions of dollar has been expense by oil and gas company to study the corrosion
behavior so that they can encounter corrosion and prevent it before corrosion attacks the
piping, equipments and other steels attached. In order to achieve optimum perfurmance
of the coating system, the right choosing of coating specification, surface preparation
and application technique is very important. Coating can fail if inappropriate surface
preparation is chosen since this criteria are important to the adhesion of the coating itself
and the respective substrate surface. At the end of the project, we wiii know the result
expected on epoxy coating adhesion, corrosion properties and also it barnacle effect
