Using a combination of dip and spray, ED coating plants are used extensively throughout the automotive, aerospace and other manufacturing industries. In ED systems, electrically charged paint pigments reach every nook and cranny of even the most complex fabrication providing an even coating throughout. Undeposited material is washed away and after stoving the final coating becomes hard and durable.
The tank must always be kept in a very clean condition, free from erosion and corrosion which could affect the quality of the finished component. Corrocoat Benelux was contracted to carry out the cleaning and coating using Corrocoat materials approved by leading ED coating suppliers.
The contract included: blast cleaning all surfaces to cleanliness standard SA 2½ before applying Polyglass PPA primer, DFT 50-100 microns. This was followed by two coats of Polyglass VEF to a minimum total of DFT 1500 microns. Once cured the coating thickness was spark tested to ensure a pin-hole free surface before a final topcoat of white VE Veilcoat applied to a DFT 100-300 microns.