Zinsser Bulls Eye 1-2-3 Plus Primer in White prepares interior and exterior surfaces for a smooth, even paint finish. Its low-odor, low-VOC water-based formula seals porous materials, hides dark colors and blocks common water, smoke and tannin stains. It bonds to properly prepared wood, drywall, masonry, metal, vinyl and glossy painted surfaces, and the dried primer film resists mold and mildew. This 5 gallon container covers approximately 2,000 sq. ft., depending on application and surface porosity. Under recommended conditions, it dries to the touch in about 30 minutes and can generally be recoated in one hour. Allow two hours for interior stain blocking and overnight on bare cedar or redwood. Apply by brush, roller or airless sprayer, then clean tools promptly with warm water and detergent.