Abstract :
Corrosion is an oxidation reaction between the material and its
environment which results in the erosion of the material which can cause damage
to the material. The most economical and efficient corrosion control is coating
material. This study aimed to investigate the variation of coating which is better to
withstand the acceleration of the corrosion rate in sea, river, and rain water media.
This study implemented weight gain loss method in which the initial weight was
reduced by the final weight.
The corrosion rate test results indicated that on the seawater media, the
Zinc Cold Galvanize coating had a corrosion rate value of 0.00035 mpy, Bodelac
2-in-1 coating was 0.00023 mpy, and Envy coating anti-corrosion base paint was
0.00094 mpy. In the river water media, the Zinc Cold Galvanize coating had a
corrosion rate of 0.00031 mpy, the Bodelac 2-in-1 coating was -0.00060 mpy and
the Envy coating anti-corrosion base paint was -0.00020 mpy. For rainwater
media, the Zinc Cold Galvanize coating had a corrosion rate of 0.00059 mpy,
Bodelac 2-in-1 coating was - 0.00055 mpy, and Envy coating anti-corrosion base
paint was - 0.000001 mpy. From the whole research, it could be concluded that
the variation of the 2?in?1 Bodelac coating was better for resisting the impact of
the corrosion rate.