General Techniques

A Guide to Mould Making

This guide introduces the fundamental principles of mould making, explaining how to choose appropriate moulding materials based on the master’s shape, the required detail, the intended casting material, budget, and number of reproductions. It outlines when to use release agents and sealants, and emphasises how surface preparation affects the final mould. The document then describes basic open moulds and more complex multi-part rubber moulds, including the use of jackets, keys, clay scrims, and release barriers. It concludes with casting considerations and a brief overview of alternative moulding materials such as alginate, moulding compounds, and polyurethane rubbers.