Check the listing for details. Book binding Glue. PVA Cold flex glue PH netrual printing equipment. Condition: New. Listed at 9.95 USD. Cold flex glue for professional book binding. Cold Flexible general purpose Bookbinders Glue has a good initial tack, works well with either potdiven sheet gluing machine or by hand brush. Starts out white and when dry is clear/cloudy. Stays flexible for spine use. Has a high solid content which helps in giving good mileage for long runs per pound of unit. Cleanup easily with warm water. pH range 6.5-7.0. F.D.A. Approved.... Keep from freezing..Cold flex glue for professional book binding. Cold Flexible general purpose Bookbinders Glue has a good initial tack, works well with either potdiven sheet gluing machine or by hand brush. Starts out white and when dry is clear/cloudy. Stays flexible for spine use. Has a high solid content which helps in giving good mileage for long runs per pound of unit. Cleanup easily with warm water. pH range 6.5-7.0. F.D.A. Approved.... Keep from freezing..