Kilz® 1 standard primer is designed for use on multiple interior surfaces helping save cost by reducing the number of coats of paint needed to achieve optimal results. It seals porous surfaces, hides minor scuffs and marks and promotes a more uniform appearance of the topcoat. It's ready-to brush, roll or spray and can be top-coated after 1 hr with latex or oil-based paint. Use Kilz standard primer on almost all interior surfaces including wood, drywall, plaster, brick, masonry and more. Not recommended for flooring, glossy surfaces, mold and mildew prone surfaces or for stain blocking.