Mold Star rubbers are easy to use platinum silicones which are mixed 1A:1B by volume (no weighing scale necessary). Mold Star silicones feature relatively low viscosities and vacuum degassing is not required for most applications. Mold Star 16 FAST is a fast material with a 6 minute pot life and 30 minute cure time.
Mold Star silicones cure to soft, strong rubbers which are tear resistant and exhibit 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. Cured Mold Star rubber is heat resistant up to 450°F (232°C) and is suitable for casting low-temperature melt metal alloys. Note: Mold Star rubbers are not intended for brush-on moldmaking.
Note: This product will not cure against surfaces containing sulfur, even when sealed.