Foundry Mold Making Products

Foundry

Premium Polyurethane and Silicone Products for Foundry Casting Molds

Silpak polyurethane and silicone rubbers are built for foundry mold making, capturing fine detail from original artwork to produce wax patterns and resin replicas with exceptional repeatability. Both material types are available in a range of hardnesses to fit different originals, casting methods, and production volumes. Whether your project ends in a bronze pour or a painted resin piece, Silpak has a mold-making material suited to the work.

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Foundry Mold Materials That Capture Fine Detail

Reproduce surface texture, sculpted features, and intricate forms with accuracy.

Silpak’s mold-making materials capture fine surface texture, sculpted features, and intricate forms, preserving the character and shape of the original piece. For foundry applications where the original artwork is one of a kind, that level of fidelity matters from the first pour to the last.

 

Reliable Results for Wax and Resin Foundry Casting

Support clean release and repeatable results across casting methods and finishes.

Silpak’s rubbers deliver dependable demolding and reliable reproduction for wax patterns, resin replicas for painting, and specialty finishes like bonded bronze. The same mold can support multiple casting methods, giving you more flexibility without needing to remold from the original.

 

Choosing Between Polyurethane and Silicone

Match the material to your project, casting method, and production volume.

Silicone rubber is well-suited for originals with fine undercuts or delicate surfaces, offering excellent release without adhesion to most substrates. Polyurethane rubber is a strong choice when mold durability and higher production runs are the priority. Both are available in a range of hardnesses to fit your foundry application.