Zinsser B-I-N White Shellac Base Interior & Spot Exterior Primer, 1 Gallon is a versatile flat white primer designed for use on every interior surface, including metal and glass. This primer effectively closes the pores of most surfaces, preventing bleeding stains and sappy wood from damaging your paint job. It covers a variety of tough marks such as crayon, grease stains, and dark wallpaper designs. Made with a pure shellac base, it dries quickly within 45 minutes and can be applied easily using a brush, roller, or airless sprayer. This primer excellent coverage of up to 450 square feet and ensures a smooth, flat finish that prepares surfaces for painting. Model Number: 0901