Zinsser Shieldz Clear Acrylic Wallpaper Primer, 1 Gallon is an economical and fast-drying acrylic primer designed to prepare most surfaces for hanging a wide variety of wallcoverings, especially prepasted types. This versatile primer seals, primes, and sizes in one easy step, effectively eliminating common issues such as poor adhesion, open seams, shrinking, and raised edges. It is tintable to help conceal seams, appearing light pink when applied but drying clear for a seamless finish. I for priming painted surfaces in good condition, paneling, and existing wallcoverings, it removes the need to sand glossy paints or finishes. Suitable for use on porous surfaces under both latex and oil-based paints, it is choice for preparing new drywall for wallpapering. Its fast-drying formula allows wallcoverings to be hung in just two hours. Covering 500 to 750 square feet per gallon depending on surface porosity, it can be applied easily by brush, roller, or sprayer, with tools cleaned up using warm soapy water. Model Number: 2101