Mild steel internal surface of LRS tank is always coming in contact with chemical water which contains sodium chloride and sodium hydroxide. Due to these electrolytic media the conductivity increases, which lead to corrosion reaction which got accelerated to form severe rusting on the LRS tank as the medium is highly conductive to electrons due to presence of salt & alkali. Apart from the chemical nature of medium inside LRS tank, variable temperatures of medium is highly influencing to the rate of corrosion.
The surface of the LRS tank was checked for the presence of adsorbed salts, and thereby relevant methods were incorporated for removing the contamination by means of blast cleaning and neutralizing the surface with thorough water jetting cleaning ensuring a rough, contamination free surface to the desired surface profile.
Over the prepared surface, application of ProCoat Coating System was carried out using rollers. The coating deposited over the surface was checked for complete and strong adhesion to the desired thickness which was measured using various Wet Film & Dry Film Gauges followed up with Spark Testing to enhance coating integrity.
Final view of the coated tank before being put back into operations.