How to Repair a Plaster Sculpture | Hunker
Step 1. Glue all of the pieces back into position with school glue. Most people automatically think they need to grab the super glue, epoxy or hot glue, but the best glue to use on plaster or ceramics is plainold, white school glue. It seeps into the pores on the plaster and ceramics and rebuilds the bond between the broken pieces.