plaster of paris molds

[Homefire]

I have about 800 ceramic molds made of plaster of paris.
These molds are spent as far as ceramics use.
I was wondering if anyone knows of a use for old plaster of paris molds.

I had thought about using them as a heat mass in my garage. Maybe use my salamander heater to get them hot then let them give off heat for several hours while I work in there.
If I stack them in the shape of an oven or igloo and let the heater blow in the center for an hour of so until they heat up a bit.
Anyone ever seen anything like this?

 

[Homefire]

Never mind I just read the molds will re-calcine when heated to high temp leaving me with a plie of plaster.

 

[Roospike]

glad we could help. :cheese:

 

[Homefire]

glad we could help. :cheese:

ah shucks , I peels so espeshecial now

 

[Corie]

I don't even know what re-calcine means.



Glad we could help