Mold Star 31T Silicone
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Mold Star 31T Silicone

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. Moulds 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™ 31T 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.

Mold Star™ 31T is heat resistant up to 450°F (232°C) and is suitable for casting low-temperature melt metal alloys.
Note: This product will not cure against surfaces containing sulfur, even when sealed.


Product Name Pot LifeDemould Time Net Weight
Mold Star 31T Silicone (Gallon Unit)5 minutes23 minutes7.26 Kg
Mold Star 31T Silicone (Trial Unit)5 minutes23 minutes0.90 Kg