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General Finishes White Undercoat is similar to General Finishes Sanding Sealer with the addition of a white colorant to provide a primer undercoat for white/ off white wood finishes. The high solids facilitate a fast film build and sand easily.  Use as a base coat for pigmented acrylic finishes.  It dries tack free in 10-20 minutes.  Particularly effective on MDF

White Undercoat*

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