Smooth-on Trowelable Plasti-Paste
cynthia+2016-05-16T14:17:51-07:00Normally, I craft my mother molds out of plain old plaster of paris. It's cheap, relatively quick and the cleanup is easy. But the resulting shell is also heavy and brittle, hard to store and prone to chipping off in exactly the spot you need it to be whole. Smooth-on's Plasti-Paste promises to alleviate at least 75 percent of those problems but costs about $17; plaster costs about $3. To work, the Plasti-Paste shell needs to be VERY light, VERY rigid and VERY easy to get off the mold. So...here goes.