There has been a huge popularity amongst the mold makers in using Silicone rubber for the molding and casting projects. The reason is simple - the material is extremely versatile and is easy-to-use material. It is possible to create almost anything without the need of a release agent. Also, the silicone rubbers can be used to replicate molds without losing the intricacies of the original.
Depending on the type of mold one's making, they can choose from a very soft rubber that can help in de-molding the undercuts. Also, there's choice of firmer silicone that can have longer life and many more castings without mislaying any details. So, it is not just the easiness and safety but longer library life is what makes it a perfect choice for the mold makers. In particular, platinum catalyzed silicones can be archived for as long as 20 years which is a contrast to the tin-catalyzed silicone experience which do not have any more than five years of life.
One of the most interesting points of the rubber compound of silicone is that it can double as both mold and casting material. The products such as, SkinRite 10, is a translucent silicone that can be used to create prosthetics, dolls and realistic looking body parts. But it should be remembered that silicone does not stick to anything apart from itself and requires a nice mold release agent when casting silicone into a silicone mold.
You can find all the necessary kits and products at https://www.artmolds.com