These degasser tanks are subjected to corrosion, abrasion & cavitation due to continuous contact of fumes of chemicals which are exhaled from the surrounding process equipments in a chemical industry. A uniform & pitting type of corrosion is found over the surface.
On identifying the causing factors of corrosion over the surface, necessary protection methods have been implemented to safeguard the tank from falling prey to freely hovering corrosive agents. The tank surface was blast cleaned and made contamination free using relevant test methods ensuring the surface to Swedish standard of Sa2.5, i.e., near white metal finish along with average surface profile of 75 μ i.e., surface roughness.
Prior to the application of protective coating, at few places reclamation of metal on tank surface was carried out on with ProCoat Metal Repair & Reclamation Compounds. Sequentially the entire surface was coated with chemical resistant coating system to the recommended thickness, which has been measured using relevant measuring devices most importantly ensuring coating integrity.
Sequentially the entire surface was coated with chemical resistant coating system to the recommended thickness, which has been measured using Elcometer Wet Film Thickness Gauge to ensure the deposition of recommended coating thickness.
Once the coating was cured Dry Film Thickness was measured using the Elcometer DFT Gauge & checked with Holiday Spark Testing to ensure coating integrity. As per the clients need over and top the applied ProCoat Chemical Corrosion Protection Coating System a weather resistant coating was applied for dual protection of chemical & weather degradation, which also serves the purpose of color- coding.