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Kenneth Trimber, 5/18/2014, 8:24 PM
You should contact the coating manufacturer for recommendations, but it is common to apply a mist coat of the intermediate before applying the full coat. The purpose of the mist coat is to seal the porosity of the inorganic zinc. If you add extra thinner to the mist coat to improve its ability to penetrate, make certain you don't exceed the limitations on VOC.
Bashir Ahmad, 5/13/2014, 3:10 PM
how we can avoid pin-holes? if primer is zinc silicate & mid coat is MIO.