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In this paper the approach of an Oil Company is demonstrated from the initial choice between different primers: inorganic zinc and organic (epoxy) zinc., to all the preliminary pre-qualification tests, the subsequently field test performed, and the procedures adopted, costs included.
Corrosion protection of platform structures above the splash zone with paint systems is the focus for this study. Success of the coating work depends on many aspects (paint specifications, paint systems certification, surface preparation, coating application, certified inspectors activity, etc), but mainly it depends on the environmental conditions and procedures used to counteract their influences. Sometime it is not possible to have the best “environment” or, very often, enough time reserved for the paint activities, so it’s necessary to manage different paint systems to obtain the same performances in a short time. In this paper the approach of an Oil Company is demonstrated from the initial choice between different primers: inorganic zinc and organic (epoxy) zinc., to all the preliminary pre-qualification tests, the subsequently field test performed, and the procedures adopted, costs included.
KEY WORDS: Specification, paints, coatings, surface preparation, inspectors
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.
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Protecting mechanisms of a new generation of activated zinc primers with enhanced protection vs inorganic zinc rich primers. Performance properties have been proven with results from different corrosion tests.
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.