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Mold Star™ 31T is an easy to use Shore 30A translucent platinum silicone that is mixed 1A:1B by volume (no weighing scale necessary). It features a relatively low viscosity and vacuum degassing is not required for most applications. Pot life is 5 minutes and cure time is 23 minutes at room temperature.
Mold Star™ 31T cures in to a soft, strong rubber that is tear resistant and 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, and other materials. An infinite number of color effects can be achieved by adding Silc Pig™ silicone pigments or Cast Magic™ effects powders.
Mold Star™ 31T is heat resistant up to 450°F (232°C) and is suitable for casting low-temperature melt metal alloys.
Cured Mold Star™ 19T, 20T and 31T silicones have been tested and certified skin safe by an independent laboratory.
Note: This product will not cure against surfaces containing sulfur, even when sealed.
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