Zinsser HIDZ is a versatile interior/exterior primer designed for use on a wide range of surfaces, including drywall, cured plaster, paneling, new and previously painted wood, concrete, masonry, brick, stucco, trim, clean galvanized or painted metal, glossy laminates, and more. Ideal for remodeling projects, especially where new and existing surfaces meet, Zinsser HIDZ effectively hides previous colors and seals porous materials. It blocks common stains like crayon marks and oily handprints, while delivering excellent adhesion-even on hard-to-paint surfaces.