Zinsser B-I-N Shellac-Based Ultimate Stain Blocker Interior & Spot Exterior Primer, White, 5 Gal.

A flat, white primer for every interior surface, even metal or glass. Closes the pores of most surfaces and prevents bleeding stains, sappy wood from ruining paint job. Covers crayon marks, grease stains, dark wallpaper designs, etc. Made with a base of pure shellac, and dries in 45 minutes. May be applied with brush, roller, or airless sprayer.