Moldmaking and casting tutorial - In this video, we show how Mold Star™ 30 silicone is used to create a 2 part mold. TASK™ 4 urethane resin is poured into the mold to create a thin walled casting of a model train car.

Mold Star™ liquid rubbers from Smooth-On 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™ 30 is a harder material, with a 30A Shore hardness.

TASK™ 4 is a unique liquid polyurethane casting resin that is very strong when cast in Ultra-Thin sections ranging from 0.03” to 0.50”(0.075cm to 1.27cm). TASK™ 4 has a very low mixed viscosity, ensuring flawless pick-up of even the finest detail. Cured plastic exhibits very low shrinkage which is why this plastic has become a favorite of prototyping and design professionals throughout the world. Pot life is 20 minutes and cure time is 16 hours at 73°F/23°C.

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Reynolds Advanced Materials
Everything for Mold Making & Casting

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