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.
 

PVA Freeze Warning: The adhesive properties of PVA significantly diminish when it freezes. Therefore, during the winter months we try to monitor when we ship our PVA glues. If the weather is such that our glue shipments may be affected, we will hold your entire order until conditions allow us to ship.  A tell-tale sign that your PVA was frozen is if the glue exhibits a chalky or cottage cheese like texture. If you can stir the glue and it smooths out, it should be fine. If not, it should be discarded.  We suggest you do not order PVA glue during the winter months when you know the temperature may below freezing.