Places to Buy Products 

Tap Plastics
Great S.F. Bay area resource, especially for beginners. Where we go when it’s the day before the con and we’ve run out of materials… this happens way more than it should.

Silpak
Located in the Los Angeles area. We really like their polyurethane quick cast resin.

Smooth-On
The website leaves something to be desired but they have great products. Their stuff tends to require some know-how but we really like their mold rubbers.

How-To Resources 

The Prop Builder’s Molding & Casting Handbook
All encompassing guide to making props with varying techniques from very simple, like hot glue casting and paper mache, to more advanced techniques, like fiber-glassing and vacuum forming

Do It Yourself Vacuum Forming
Put out by Tap Plastics. Great guide to building a vacuum form setup at home using stuff you can find pretty easily and for fairly cheap

YouTube
There are a lot of how-to videos posted on YouTube. Tap Plastics has tutorials posted there too.

Materials We Talked About 

Polystyrene / ABS plastics – used for vacuum forming

Polyurethane Resin – a resin you mix and pour into molds

RTV Silicone Rubber- a mix and pour rubber that you use to make molds

Polyester Resin – a clear resin

X-30 expanding foam – a mix and pour foam that expands

Fiberglass – a paper mache like material using glass cloth and epoxy