Valspar® Prep Step® All-Stain PrimerThis all stain primer is a universal blocker for stains. It hides stains caused from both water and oil. This oil fortified latex formula also provides a great base for any cabinets, trim, doors, furniture or paneling that are destined for paint. It leaves a smooth finish to allow for optimal topcoat performance and finish. Universal blocker for plaster, wood and drywall Improves adhesion to finished wood Hides both water and oil stains Cleans up with