>>972120
if you have a University nearby, maybe get in touch with some people at the foundry (if they have one), those people are really helpful and might even do that for you since they usually have the equipment for that sort of thing

>>972525
foundry=metal casting?
Also, dragon dildo

>>972120
Smooth on products have a line of silicone that works pretty well without degassing so long as the item you're making doesn't have any large undercuts.
However, casting silicone in a silicone mold runs the risk of the two bonding together.

I would suggest male sculpt, mold in one of Smooth on's rubbers, then cast in silicone. Or at the very least, research what sort of release agent to use in silicone to silicone casts. Good luck!

>>972649
>dragon dildo
My thoughts exactly.

>>973082
*mold in a different rubber

And to get the clay out, if your mold is under an inch or so thick, you may be able to turn it inside out to properly clean it.
Having a hard shell of plaster on the outside will support the shape, especially if you accidently tear the mold or need to run a slit down the side for easier cleaning.

Not going to post pics because this is a sfw board but I want to cast a silicone object.
I've got a knock-off chastity cage, that comes in two parts, a head cover and a ring for the scrotum and shaft. While the head's fine the ring is way too thick for comfort. So my choices seem to be to pay 140 dollars for a quality product or fix what I've got.
What's the cost I'm looking at for materials? I don't need much silicone for what I'm making but I wouldn't mind trying to make an online store hobby sort of thing out of it or casting bits and pieces for other stuff.

>>973131
From what I've seen 1-2 pounds goes for $30. 1 pound is about 1/10th gallon

>>973085
Brush on and plaster, that's a good idea