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how many coats of primer on new drywall?
I am spraying primer on an entire house that I am building for myself (since '05!) My sheetrock guy suggested that I spray and backroll at least two coats on all the walls to eliminate any problems with being able to distinguish the paper from the mud. He thought the texture of the roller napp would do a better job of hiding the variations between surfaces. Another long time contractor suggested that I spray 2 or even 3 coats of primer, since spraying lleaves less paint on the surface. I am new to using the sprayer but it seemed that one coat of primer went on pretty well. Should I spend the money and time to apply a second coat, or would that just be overkill? Do most paint contractors spray and then backroll primer?