The performance of ZINGA is, like any coating or paint, highly dependent on the degree of surface preparation before application. Therefore, ZINGA can be applied on a slightly rusted surface, but due to the barrier of rust between ZINGA and steel, the galvanic protection is affected and therefore the performance of ZINGA is reduced.
Since ZINGA can offer a sustainable, longlasting protection of steel surfaces, it is profitable to invest in a thorough surface preparation which prevents premature failure of the coating.