Silicone Casting Moulds

Explore our silicone casting moulds for resin casting, pen blank making and other small casting projects.

Our moulds are available in a range of sizes and are made from fully degassed silicone. Each mould is pressure tested to 70 psi, with straight sides and square corners. An indicator line 5mm from the top helps with filling, or the mould can be filled to the top for a thicker cast.

For other mould styles, see our HDPE Pen Blank & Resin Casting Moulds and Less-Resin Casting Moulds. Complete your casting setup with our Epoxy Resin and Mica Powders.

Please note: Due to the wide range of sizes and variations in HDPE and silicone moulds, we keep only limited stock. If you need more than is currently available, place an order and they will normally be made within 2–4 days.