Yes, that's why I typed that.
The question is, why make a silicone mould in the first place?
I guess silicone is a good material to make a seamless mould of a smooth object. Since it's flexible you can remove it from the original object without cutting it.
Re:3D Printing Sex Toys
by BillieRuben on Sunday October 10, 2021 @05:18PM
(#28822073)
this is the reason.
Silicone absolutely loves silicone. If you pour silicone into a silicone mould you end up with one piece of silicone — which now includes the mould. So a barrier is absolutely essential.