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Silicone Rubber Moldmaking Materials (Catalyst 4)


Product Description

Catalyst 4 for 3110, (45 gram tube)
The Silicone rubbers, when used to make molds, offer high fidelity reproductions, capture delicate details, master intricate shapes and hold severe undercuts. They are widely recognized as the superior moldmaking materials that are easy to use. Silastic 3110 RTV Rubber, formerly Silastic A. White in color, this is the lowest viscosity of the Silastics. It is also the easiest to work with and pour. It fills tiny crevices and indentations and does not require vacuum de-airing. Use only with Catalysts 1 or 4. Catalyst 1 is a blend of active catalysts in an inert silicone paste and is easier to use than Catalyst 4 which is a 100% active material. Silastice E RTV Rubber, white in color this rubber features very good tear resistance, long working times, heat accelerable curing, high elongation and virtually no shrinkage. Much more viscous than Silastic 3110, but much stronger physically after curing. Can pour low melting metals directly into Silastic E molds. Use only with Catalyst E and must be vacuum de-aired after mixing with the catalyst.

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