TFC silicone rubber Type 15 is an addition-curing, two-component silicone rubber for the production of sophisticated, elastic, and hard-wearing shapes with pronounced undercuts. Due to the high translucency—the rubber is nearly transparent—and the shore hardness of the cured material of 32, cutting of the mold near the molded original is very possible. At the same time, Type 15 is not deformable over a long period due to its high dimensional stability and is characterized by a high resistance to aggressive components of some plastics. For a blow-free result of the mold, we recommend venting the mixture with a vacuum unit before pouring.
TFC silicone Type 15 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.
We have updated our product range. TFC silicone rubber Type 15 replaces Protosil RTV 245.