The process for making molds and casts from silicone rubber is quite simple and straightforward. The material is easy to use and delivers excellent results when made in the appropriate manner.
Materials for Lifecasting Projects - Reynolds Advanced Materials
Making hollow casts in open or 'closed' moulds
Casting the past: How to make cheap, easy moulds and casts
Basics of Mold Making Tutorials by Smooth-On, Inc.
How to Make Silicone Molds: A Practical Guide
Emily Simpson's FX Prosthetic Blog: Life casting and Moulding: Part 1
Emily Simpson's FX Prosthetic Blog: Life casting and Moulding: Part 1
The Uterus Project - A BTS look at resin casting - Period Nirvana
Lifecasting Tutorial: How To Make a Silicone Mold of a Kid's Face
Mold Making: Two Part Silicone Mold : 7 Steps (with Pictures
Basic Silicone Mold Making & Casting
Silicone Mold for making Plaster Skulls – Moreton Manor
Are there any mould making materials for casting hard materials