Polyester resin is designed for adding coloured pigment and filler powder and casting into moulds, such as latex chess moulds. It is a base resin that can be filled up to a loading of 70 filler to 30 resin. Can be filled with various fillers, for general opaque casting we recommend stone powder plus pigment. Metal powders can be used for that resin metal look. Use with catalyst/hardener to harden at 1-2%. Use in a well-ventilated workspace. Contains 1kg resin, 30ml of catalyst (hardener) and syringe.