I made a sculpture of one of my dogs that I would now like to make a mold of and cast in to concrete or hypertufa to place in the garden. Problem is, I'm not sure what product to use to make a mold, and was hoping someone here could advise me on that. I was figuring on a silicon two part mold, with a rigid plaster mother mold. I've been reading up online, but there are so many things out there that my head is spinning and I don't know what to order..plus silicons are very expensive, so I don't want to get the wrong thing. The clay master is made out of klean klay, which I think is oil based and sulfer free. (not positive on that)
Can anyone here help?
