I've been looking into what I would need to get started in rubber-casting custom penetrating toys, and while the setup is somewhat expensive most of the elements last a long time. The real problem is what kind of material to actually cast the toys from - I've only found one company that is willing to sell medical-grade silicone in small batches to the general public, and it's ferociously expensive.
Dow Corning has several products that would be appropriate but they don't even quote you a price unless you enter an agreement to order thousands of dollars of material.
Food-grade is easier to get in modest batches, and I suppose that food-grade might be safe enough for this sort of thing, but I doubt that the existing companies, even the smallest ones, in the silicone-molded toy business are using anything short of medical-grade material for liability reasons. I'd ask them about their suppliers, but on a certain level this project makes me competition, so I don't expect they'd give me any answers.
Does anyone have any information on this?
The basic idea is I'd carve a master, probably from modeling clay, build a permanent silicone rubber mold around it, build a frame for the mold so it doesn't deform when you pour the liquid rubber into it, and then you can use it potentially hundreds of times before it wears out.
Dow Corning has several products that would be appropriate but they don't even quote you a price unless you enter an agreement to order thousands of dollars of material.
Food-grade is easier to get in modest batches, and I suppose that food-grade might be safe enough for this sort of thing, but I doubt that the existing companies, even the smallest ones, in the silicone-molded toy business are using anything short of medical-grade material for liability reasons. I'd ask them about their suppliers, but on a certain level this project makes me competition, so I don't expect they'd give me any answers.
Does anyone have any information on this?
The basic idea is I'd carve a master, probably from modeling clay, build a permanent silicone rubber mold around it, build a frame for the mold so it doesn't deform when you pour the liquid rubber into it, and then you can use it potentially hundreds of times before it wears out.