Silicone Mold Rubbers

Silicone Mold RubbersPolytek® manufactures a full range of two-part, room-temperature curing silicone rubbers that offer great flexibility, tear strength, chemical resistance, and release properties. Silicone molds can be used to cast a variety of materials, including polyurethane, polyester and epoxy resins, polyurethane foam, plaster, wax, concrete, low melting metals, and more.

Silicone mold rubbers are more expensive than polyurethane rubbers, but well worth the expense when the user does not want to use release agent when casting resins and foams.

Polytek® manufactures two different types of silicone rubbers: platinum-cured (PlatSil®) silicones and tin-cured (TinSil®) silicones. Read about their differences below in the section titled A Comparison: PlatSil® vs. TinSil® Silicone Mold Rubbers

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