TFC silicone rubber Type 12 is a two-component silicone rubber for the production of sophisticated, elastic, and hard-wearing shapes with undercuts. Molds made from this rubber are particularly suitable and resistant to certain types of casting resins. The material is distinguished by its very long processing and curing times. The very durable rubber Type 12 can be processed for 70 to 90 minutes. Curing and deaeration of the finished mold is 6 to 8 hours.
TFC silicone Type 12 can be used in both single and multi-part molds. Impressions can be made of original models made of wood, glass, metal, plastic, wax, and ceramic casting compounds. All water-soluble and solvent-containing casting compounds can be cast into the molds produced.
The water-soluble casting compounds include, for example, relief casting compounds such as Stewalin, Plastalin Super, Keraflott or gypsum, Keramin, Alabit, modeling and building plaster, cast clay, cement, concrete, etc. For solvent-containing casting compounds, e.g. resin and epoxy resin, the mold should be pretreated with a release agent, since casting resins can lead to embrittlement of the mold after repeated casting. Seed casting compounds (soap-glycerin), for the production of soap or waxes for the production of candles, can also easily be brought into the molds.
Please note that the silicone is not tested for skin and mucous membrane tolerability, nor for use in conjunction with food.