Smooth cast 300 is a liquid plastic, ultra-low viscosity casting resin that yields castings that are bright white and virtually bubble-free. Vacuum degassing is not necessary. It gives the convenience of a one to one mix ratio (by vol). 3 Minute pot life: 10 minute demold time: mixed viscocity 80 cps: 70d shore hardness fully cured castings are tough, durable, machinable and paintable.

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