Smooth-On Oomoo 30 Silicone

This easy-to-use silicone rubber is perfect for first-time silicone users who don’t have specialized mold-making equipment.

Smooth-on Oomoo is good for making simple one- or two-piece block molds. Its low viscosity assures easy mixing and pouring, making vacuum degassing unnecessary.

Smooth-on cures at room temperature with negligible shrinkage and has a 30-minute pot life with a six-hour cure time. It has a convenient one-to-one by volume mix ratio, so no scale is necessary.