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Smooth-On OOMOO 25 - FAST Curing Mold Making Silicone Kit - 2 Pints - EASY! Dimensions: 5.9' 7.6' 3.1' Easy to use 1:1 by volume ratio . No scale required. Oomoo 25 - Fast setting 75 minute cure time. For quick turnover of molds. Sets FASTER than Oomoo 30. Cast with smooth-cast, plaster or resin! Also Popular for use with Pros-Aide transfers! Great for craft moldmaking, candles, replicas, home remodeling, jewelry, and more! East to use, equal parts A and B. Degassing is not necessary. Cures at room temperature.