Achieve the perfect foundation for any paint job with Sherwin-Williams' interior primers. These primers are formulated to block stains, seal porous surfaces, and promote better adhesion of topcoats, ensuring smoother, more vibrant finishes. Available in various options for specific surfaces like drywall, plaster, or wood, our primers prepare interior spaces for flawless, long-lasting results, reducing the need for multiple coats and enhancing color accuracy.