Using AeroMarine Products 150 High Temp Silicone Rubber to create a two part mold and then using the mold to cast pewter keys.
How to Make a High Temp Silicone RTV Mold : 4 Steps - Instructables
How to Make Pewter Molds
How To Cast Pewter Into Mold Max® 60
Casting Pewter in Silicone Molds
How to Make a High Temp Silicone RTV Mold : 4 Steps - Instructables
Shape Memory Superelastic Poly(isocyanurate-urethane) Aerogels (PIR-PUR) for Deployable Panels and Biomimetic Applications
Sonnette Arts and Crafts - Plaque de cuivre martelé antique
How to Make a High Temp Silicone RTV Mold : 4 Steps - Instructables
EPBOT: My Resin Jewelry (Mis)Adventures!