Milk Paint is an ancient all-natural paint containing basic ingredients including milk protein (casein), limestone, clay and natural pigments. When absorbed into the surface, Miss Mustard's Milk Paint will never chip or peel when applied to a raw wood surface. It is suitable for both interior and exterior applications and is naturally mold resistant. Milk paint provides a completely breathable coating and is ideal for painting wood, plaster, drywall and a variety of other surfaces. This environmentally friendly paint is non-toxic and contains no VOCs.