This 4 ounce bottle of Lineco Bookbinding Neutral pH Adhesive is an acid-free adhesive used for binding paper and book repairs. Easy to use polyvinyl acetate (PVA) formula is fast setting and remoistenable with water. Ideal for prints, photos, postcards or any paper item. This adhesive was formulated specifically for preservation materials and will not become brittle with age. Adheres to most porous surfaces. Made in the USA.