Unlike traditional primer/sealer products, Sheetrock® First Coat Primer has been formulated specifically to equalize both porosity and surface texture differences and provide greater uniformity of the finish coat. In contrast to a sealer, First Coat Primer does not provide a film that seals the substrate surface. First Coat Primer also provides the proper Type and amount of pigments and fillers (lacking in many conventional primers and sealers) to equalize surface texture differences.
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