08-20-2008, 07:34 PM
(This post was last modified: 08-20-2008, 07:34 PM by Dr.Killjoy.)
Usually when I get this problem I go back in with more plaster. I put the two halves back together and I wet the half that has cracks with a spray bottle of water. when the water is soaked in by the plaster I make a new batch of plaster and fill in the cracks. Then I build up another layer of plaster or two on that side. If you want, along with that you can even do one layer of plaster and burlap at one point for added strength just incase.