Hot dip galvanizing steel articles after fabrication is one of the most widely used methods to provide corrosion protection. As a final step in the process, the hot dip galvanized coating is inspected for compliance with specifications. Correct measurement techniques and accurate interpretation of the results are necessary to provide an acceptable hot dip galvanized coating.
To maintain strict environmental conditions, tanks are dehumidified during the surface preparation, coating application and curing. A practical approach, detailed project calculations, practical field problems & their solutions and on-site implementation of dehumidification of huge crude storage tanks is described in this paper.