One of the most important materials in the hobby of prop building is casting resin. It is used to make copies of a master model using a silicone rubber mold. Most prop kits on the market are made from some kind of resin.

Polyurethane Resin

Casting resin is available in many variants of different chemical and mechanical properties. I use a two component polyurethane quick casting resin without fillers with a working life of 2 minutes and a demolding time of less than 30 minutes. The resin is mixed with the hardener using a mixing ratio of 1:1 and cures to an opaque beige color. It has a very low viscosity and is suited for casting of highly detailed surface structures as well as complex parts.

Remember to wear protective gear such as gloves and a respiratory mask at all times when handling this chemical!

Modulor direct link: PUR fast cast resin G27

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