marblex

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Is is a clay that hardens? I suppose that if it dries to a plaster-like hardness then it could work. I haven't personally tried vacuum forming yet, but I think that what you are wanting to do should work, if I'm understanding right.

Is it that you want to make your sculpt without having to mess around with making a negative and then a positive cast?

If you want to get some more answers try asking your question here.

Hope that helped!
 
something like that, and i do belive it drys to a plaster like hardness ill have to check again. been at my grandparents all day watchin the super bowl and eating chilly cheese dip stuff with tostidos, mmmmm
 
I played with this last winter to make a little statue. After you finish working on your piece you just leave it out and the clay will dry out and harden. It will get a bit harder than plaster, and won't melt, but i haven't worked with vac-forming, so I'm not sure how that will go. I think it would work if you're careful about not having any undercuts on your model.
 
thats good enough for me and i plan to smooth out my model as good as possible lol. if it doesnt work for these purposes ill be sure to post about it,

but before i go gettting myself into something i coulda prevented, you know how long this stuff takes to dry and how easy it would be to smooth after letting it sit but not till it drys, you know kinda at the leather hard stage with ceramic clay?
 
The statue I made was about the size of a bobble head, and it took a couple weeks to dry out. A thicker piece takes longer to dry, and can crack if it's not hollow. The surface does dry out first (overnight) which makes it harder to smooth. Other than the clay not needing to be fired to be hard, it works about the same as normal clay. One tip I read about is to wrap the clay in plastic or wet towels to keep it from drying before you want it to.
 
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