A high-quality bookbinding glue, PVA (Polyvinyl Acetate) is archival and water soluble. It is the standard glue being used in most bookbinding applications. PVA dries quickly and cleans up easily with water. One of its outstanding qualities is that it remains flexible and won't become brittle after it's dry, which makes it great as a bookbinding glue. May be mixed with wheat paste or methyl cellulose, which extends the drying time. Image shows range of glues from 4 ounces to 32 ounces.