3350 W. 48th Pl. Chicago, IL 60632-3000. Phone 773-927-3484, FAX 773-650-5853.
Source for liquid thermosets: silicones, moldmaking urethanes, casting plastics, polyester resins, epoxy.
Fiberglass fabrics, release agents, fillers and dyes.
All products available in small quantity.

Casting a Silicone Part

If you want to cast silicone, people have been successful using aluminum molds, but this may be difficult and expensive to produce. Clay or silicone would also work. In any case, you would want to use a release agent such as ER800 to make sure that the silicone does not adhere to the surface.

One very important consideration in choosing the molding silicone and the casting silicone is whether to use tin or platinum cure silicones. As a general rule, tin-cure silicones can be poured (cast) into either platinum-cure silicone molds or into other tin-cure silicone molds. However, platinum cure silicones can ONLY be poured into other platinum cure molds, but NOT into tin-cure molds.

It seems confusing, but as long as you tell us what you want to do, we will supply you with systems that are compatible. To read more about moldmaking and casting silicones, see our online silicones catalog.

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