Polyvinyl acetate (PVA) is the best glue to repair broken ceramics. It is important to put all the pieces of a broken ceramic together precisely when making a repair. Instant glues and five-minute epoxies dry too quickly for precise repairs. Slower setting PVA glue is a better use for repair of broken ceramic.
Examine
Examine the ceramic to determine where you need to make the repair. Check to be sure you have all the ceramic pieces needed and you know how the pieces fit together.
Apply
Apply PVA adhesive to the broken pottery where you want to make the repair. You can find PVA in your local hardware, home supply and art supply stores. Although you can use any type of PVA, clear PVA is often the best choice. Clear PVA will yield a less visible repair.
Hold
Hold the ceramic in place for about one minute until the PVA has set. Remove any excess PVA with a craft knife after the PVA has set.
Repeat
Repeat as needed until all pieces have been put back in place.
Cure
Allow the PVA to fully cure. Let the repaired ceramic to sit overnight before use.