“PURE MOLD”: TRANSLUCENT AND FAST LIQUID SILICONE RUBBER FOR THE CREATION OF MOULDS COMPATIBLE WITH RESIN. Very easy to use silicone for creating detailed moulds of any size! Description. Liquid medium-hard condensation pourable silicone rubber (13 shore A). PURE MOLD is a two-component addition silicone rubber that vulcanizes at room temperature. Due to its remarkable fluidity, it is ideal even for the duplication of models with undercut areas. The main qualities of the product make it particularly suitable for the use of: epoxy resins, polyester, polyurethanes and acrylics, cements and plasters. + Liquid + Fast (6-8H) + Translucent + Resistant.