How long does PVA glue take to dry bookbinding?

The drying time of PVA glue for bookbinding can vary depending on various factors such as the thickness of the glue layer, humidity, and temperature. Generally, PVA glue takes around 1 to 2 hours to dry to the touch. However, for complete curing and maximum strength, it is recommended to leave the book under pressure for at least 24 hours.