Chequepoint
New Member
I have a piece that I'm not quite ready to divulge yet, but it's a latex skin over flexible polyfoam "statue" type prop that was poured out of an original production mold. I'd like to cast it because to build my prop replica I need the piece to be resin not foam. I'm not sure where the lines on "recasting" fall in this regard, as while it's obvious to me that you don't buy a casting of someone's custom work on the RPF, cast some molds, and start selling them on eBay, I see tons of "Screen lineage" casts all over this board and they had to be liberated somehow.
Regardless, for my own personal use of the casting that I paid considerable money for, can I get some insight into the best materials to use for my mold. I believe I can't use silicone, because the latex will cause inhibition. Otherwise I'd do a simple fiberglass/silicone matrix mold. I attempted an alginate/plaster bandage mold of the piece today but I lack experience with the process so I had less than optimal results. The piece has deep undercuts, doesn't allow for you to really get your hand inside the piece to line up the mold after you cut it, and my plaster bandages were too thin apparently because the weight of the plaster deformed the mold as it is of considerable size.
Can I do a 2 piece box type mold with the alginate? Perhaps cast it in a bucket, cut the piece out, reassemble the mold and poor the plaster in the bucket to avoid the plaster bandages? It would take a ton more alginate..
Is there a material other than alginate that is compatible with latex? Would some crystal clear spray be enough to allow tin silicone to cure? All ideas are helpful.
Regardless, for my own personal use of the casting that I paid considerable money for, can I get some insight into the best materials to use for my mold. I believe I can't use silicone, because the latex will cause inhibition. Otherwise I'd do a simple fiberglass/silicone matrix mold. I attempted an alginate/plaster bandage mold of the piece today but I lack experience with the process so I had less than optimal results. The piece has deep undercuts, doesn't allow for you to really get your hand inside the piece to line up the mold after you cut it, and my plaster bandages were too thin apparently because the weight of the plaster deformed the mold as it is of considerable size.
Can I do a 2 piece box type mold with the alginate? Perhaps cast it in a bucket, cut the piece out, reassemble the mold and poor the plaster in the bucket to avoid the plaster bandages? It would take a ton more alginate..
Is there a material other than alginate that is compatible with latex? Would some crystal clear spray be enough to allow tin silicone to cure? All ideas are helpful.
