Prosoco PorousPrep Water-Based Sealer for Raw Gypsum Board Edges 1 Gallon
PorousPrep seals the dry, cut edges of gypsum wallboards exposed in rough openings for windows and doors. It ensures the application of Joint & Seam Filler or FastFlash to dry-cut edges of gypsum wallboard is fast and efficient. Its glue-like viscosity makes application smooth and easy while reducing the potential for spills and rundown.
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