12-07-2006, 01:24 PM
If you are wonting to make a master copy, so that you can re-cast that and make production molds from it, you need to fill the whole mold up with latex prob for an hour or 2. You wont a thick copy so that when you cast over it, it wont collapse. If you are just wonting to mak a quick mask, then just add some water in the mold, then dump it out(this gets the stone wet, and redudces air bubble in the latex) then add your latex. You can slush or let it sit and dwell.