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Mold Max™ 60

Mold Max™ 60 vs. OOMOO™ 25

High Heat Resistance Silicone Mold Rubber

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OOMOO™ 25

Mold Max™ 60 vs. OOMOO™ 25Mold Max™ 60

No Scale or Vacuum Chamber Required

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Key Differences

Mixed Viscosity20,000 cps4,250 cps
Mix Ratio By VolumeN/A (gram scale required)1A:1B
Pot Life40 minutes15 minutes
Cure Time24 hours75 minutes
Shore A Hardness6025
ColorRedLight Blue
Die B Tear Strength63 pli40 pli
Tensile Strength398 psi240 psi
Elongation @ Break132 %250 %
100% Modulus331 psi100 psi
Shrinkage0.0015 in. / in.0.0025 in. / in.
Useful Temperature (max)560 °F400 °F
Disclaimer
Although we do our best to ensure accuracy, Smooth-On offers no warranties, promises, and/or representations of any kind, either expressed or implied, as to the accuracy, completeness, or reliability of the information contained on this Compare Tool, nor suitability of the information contained herein to your particular circumstances. Smooth-On assumes no liability for losses or damages of whatever nature (direct, indirect, consequential or other) associated with your use, or inability to use, the Compare Tool, or from your use (or failure to use) the information contained herein. Other useful tools include product technical bulletins and our extensive FAQ section. You can also contact our technical support team.

All Technical Data

Mold Max™ 60OOMOO™ 25
Product Type
  • Silicone Rubber - Tin Cure
  • Silicone Rubber - Tin Cure
Mixed Viscosity20,000 cps4,250 cps
Mix Ratio By Volume1A:1B
Mix Ratio By Weight100A:3B100A:130B
Pot Life40 minutes15 minutes
Cure Time24 hours75 minutes
Shore A Hardness6025
Specific Gravity1.45 g/cc1.34 g/cc
Specific Volume19.1 cu. in./lb.20.6 cu. in./lb.
ColorRedLight Blue
Die B Tear Strength63 pli40 pli
Tensile Strength398 psi240 psi
Elongation @ Break132 %250 %
100% Modulus331 psi100 psi
Shrinkage0.0015 in. / in.0.0025 in. / in.
Useful Temperature (min)-65 °F-65 °F
Useful Temperature (max)560 °F400 °F
Dielectric Constant, 100Hz3.4
Dielectric Strength>500 volts/mil
Dissipation Factor, 100Hz0.02
Thermal Conductivity0.347 W/M*K
Volume Resistivity9.000000E+14 ohm/cm

Product Description

Mold Max™ 60

Mold Max™ 60 is a Shore 60A tin catalyzed silicone mold rubber formulated for applications requiring high heat resistance (up to 560°F/294°C). It features a low mixed viscosity and cured rubber exhibits very low linear shrinkage. Parts A & B are mixed 100A & 3B by weight. Pot life is 40 minutes and cure time is 24 hours. Applications include making foundry patterns, flat pattern reproductions and casting low-melt metal alloys such as tin and pewter.

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OOMOO™ 25

No Vacuuming – No Scale – Easy To Use . . . OOMOO™ 25 is an easy to use tin cure silicone rubber compound that features a convenient one-to-one by volume mix ratio (no scale necessary). It has a 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 and 75-minute cure time.

For The Novice Mold Maker - OOMOO™ silicones do not have great tear strength. They are good for making simple one or two-piece block molds. If you require a high tear strength silicone, Mold Max™ silicones are recommended.

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.

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