Mold Star® 20T is an easy to use translucent platinum silicone that is mixed 1A:1B by volume (no weighing scale necessary) and features a relatively low viscosity (vacuum degassing is not required for most applications). Mold Star® 20T cures to a soft, strong and tear resistant rubber that exhibits very low long term shrinkage. Molds made with Mold Star® will last a long time in your mold library and are good for casting wax, gypsum, resins, concrete and other materials. Mold Star® 20T silicone can be thickened with Thi-Vex® thickener for brush-on application and effects. An infinite number of color effects can be achieved by adding Silc Pig® silicone pigments or Cast Magic® effects powders.