Cold cure silicone moulds are used for each component to translate the
Milliput masters into metal. These moulds take several days to make and are made from a special high temperature silicone to withstand casting our metal masters.
Silicone molds are made in two halves over several days. Lego is used to form boxes into which the silicone is poured around the Milliput masters.
The completed silicone molds for the 1:48 scale Hawker Typhoon.
A closeup of the silicone mold for the Typhoon propellor. Feed channels have been cut to allow molten metal to flow in from the top, air vents have also been cut.