Limewash bonds by soaking into porous mineral surfaces, so it will not grip drywall paper or latex paint on its own. New drywall usually takes a drywall primer and then the product’s mineral or bonding coat; sound painted walls often need only the bonding coat. A primer tinted toward the finish color keeps any thin spot from showing white.
Before priming, walls are cleaned of dust and kitchen grease, nail pops and dents are filled, and glossy paint is dulled. Peeling paint is scraped back to a firm edge, since a coating that lets go takes the limewash with it. Masonry-only limewash ranges are not used on drywall; a lime paint made for interiors goes there instead.