General Finishes Sanding Sealer is a fast-drying basecoat designed to create a smooth, even foundation for your final finish. Formulated to build quickly and sand easily, it fills the grain, minimizes imperfections, and helps topcoats lay down flatter with improved adhesion. Ideal for furniture, cabinetry, and interior wood projects, this sealer reduces the number of finish coats needed and speeds up your workflow while delivering a professional-quality result.