Using AeroMarine Products 150 High Temp Silicone Rubber to create a two part mold and then using the mold to cast pewter keys.
Pewter Casting : 6 Steps (with Pictures) - Instructables
How to Make a Food Grade Silicone Mold by AeroMarine Products
The Must-Try Method for Pewter Casting with High Temp Silicone Mold - Aeromarine Products Inc.
The Must-Try Method for Pewter Casting with High Temp Silicone Mold - Aeromarine Products Inc.
Pewter casting help RPF Costume and Prop Maker Community
120 Casting Projects and Tips ideas silicone molds, mold making, molding
Mold Max 60 Available in the US and Canada - Reynolds Advanced Materials
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Pin by Roger Clive Finch on Old keys and locks
Pewter Casting : 6 Steps (with Pictures) - Instructables
Pewter Casting : 6 Steps (with Pictures) - Instructables