Lineco acid-free adhesive has excellent lay-flat properties and dries clear. Easy to use polyvinyl acetate (PVA) formula is fast setting and re-moistenable with water. This adhesive was formulated specifically for preservation materials and will not become brittle with age. Adheres to most porous surfaces. Now you can use our rugged, reusable plastic pump to dispense small quantities of glue from gallon containers. No more drips, spills, or sticky messes to clean up.