Smooth-On Oomoo 25 - Molding Silicone

Sold Out $ 32.58

OOMOO® 25 is an easy to use silicone rubber compound that features a convenient one-to-one by volume mix ratio (no scale necessary). It has low viscosity for easy mixing and pouring. Vacuum degassing is not necessary. This product cures at room temperature with negligible shrinkage. OOMOO® 25 has a 15 minute pot life, with a 75 minute cure time.

OOMOO™ 25 is suitable for a variety of art-related and industrial applications including making one and two-piece block molds for sculpture and prototype reproduction, casting plaster, resins and wax. OOMOO™ silicones are also suitable for electrical potting and encapsulation applications.

Features

Convenient one-to-one by volume mix ratio (no scale necessary)
Low viscosity for easy mixing and pouring . . . vacuum degassing is not necessary

Data At-A-Glance

Mix Ratio By Volume	1A:1B
Mix Ratio By Weight	100A:130B
Specific Gravity	1.34 g/cc
Specific Volume	20.6 cu. in./lb.
Pot Life	15 minutes
Cure Time	75 minutes
Color	Light Blue
Shore Hardness	25 A
Tensile Strength	240 psi
Elongation @ Break	250 %
Shrinkage	0.0025 in. / in.
Die B Tear Strength	40 pli
Useful Temperature (min)	-65 °F
Useful Temperature (max)	400 °F
100% Modulus	100 psi
Mixed Viscosity	4,250 cps