Smooth-On
Silicone Mold Making Rubber

Capture the most intricate details using these silicone rubber molds to make the perfect reproductions of original models. A convenient one-to-one by volume mix ratio (no scale necessary) and very low viscosity make this tin cure silicone rubber compound easy to mix and pour. Plus, vacuum degassing is not necessary.

This product cures at room temperature with negligible shrinkage. OOMOO 30 has a 30-minute pot life, with a six-hour cure time. OOMOO 25 has a 15-minute pot life with a 75 minute cure time.

For The Novice Mold Maker - OOMOO 30 and OOMOO 25 do not have great tear strength. They are good for making simple one or two-piece block molds.

OOMOO 30 and OOMOO 25 are suitable for a variety of art-related and industrial applications including making molds for sculpture and prototype reproduction, casting plaster, resins, and wax. Net weight 2.9 lbs.

Technical Information for OOMOO 30
Mixing Ratio: One to One by volume (100A:130B by weight)
Pot Life: 30 min.
Cure Time: 6 hrs.
Color: Lavender

Properties (Part A and B Mixed)
Viscosity: 4,250 cps
G/CC: 1.34
Cu. In./lb.: 20.6
Tensile Strength: 240 PSI
Elongation At Break: 250%
Die C Tear Strength: 40 pli
Compression Set: 37%
Shrinkage: .0025 in./in.

Technical Information for OOMOO 25
Mixing Ratio: One to One by volume (100A:130B by weight)
Pot Life: 15 min.
Demold: 75 min.
Color: Light Blue

Properties (Part A and B Mixed)
Viscosity: 4,250 cps
G/CC: 1.34
Cu. In./Lb.: 20.6
Tensile Strength: 240 PSI
Elongation At Break: 250%
Die C Tear Strength: 40 pli
Compression Set: 37%
Shrinkage: .0025 in./in.