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Mold Max™ 29NV

FOAM-iT!™ 10 SLOW vs. Mold Max™ 29NV

Low Viscosity Tin-Cure Silicone Mold Rubber

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FOAM-iT!™ 10 SLOW

FOAM-iT!™ 10 SLOW vs. Mold Max™ 29NVMold Max™ 29NV

Rigid Urethane Expanding Foams

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Key Differences

Product Type
  • Silicone Rubber - Tin Cure
  • Urethane Expanding Foams
Mixed Viscosity10,000 cps400 cps
Mix Ratio By VolumeN/A (gram scale required)1A:1B
Pot Life40 minutes3.5 minutes
Cure Time6 hours4 hours
Shore A Hardness29
Specific Volume23.7 cu. in./lb.157 cu. in./lb.
ColorYellowBeige
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™ 29NVFOAM-iT!™ 10 SLOW
Product Type
  • Silicone Rubber - Tin Cure
  • Urethane Expanding Foams
Mixed Viscosity10,000 cps400 cps
Mix Ratio By Volume1A:1B
Mix Ratio By Weight100A:10B100A:87B
Pot Life40 minutes3.5 minutes
Tack Free Time1 hour
Cure Time6 hours4 hours
Shore A Hardness29
Expansion (approximate)6 times
Foam Density10 lb/ft³
Specific Gravity1.17 g/cc0.16 g/cc
Specific Volume23.7 cu. in./lb.157 cu. in./lb.
ColorYellowBeige
Die B Tear Strength96 pli
Tensile Strength417 psi
Elongation @ Break361 %
100% Modulus54 psi
Shrinkage0.002 in. / in.
Useful Temperature (min)-65 °F
Useful Temperature (max)400 °F
Dielectric Constant, 100Hz3.29
Dielectric Strength330 volts/mil
Dissipation Factor, 100Hz0.005
Thermal Conductivity0.21 W/M*K
Volume Resistance8.29E+11 ohm
Volume Resistivity5.83E+13 ohm/cm

Product Description

Mold Max™ 29NV

Mold Max™ 29NV is a Shore 29A tin-catalyzed silicone mold rubber that offers low viscosity, fast cure and long library life.
Mold Max™ 29NV does not require vacuum degassing. Mix ratio is 100A:10B by weight. Working time is 45 minutes and cure time is 6 hours at room temperature.
Mold Max™ 29NV will reproduce the finest detail and is suitable for a variety of industrial and art related applications including making molds for reproducing prototypes, furniture, sculpture and architectural elements. Cure time can be reduced with Accel-T™ cure accelerator. Mold Max™ 29NV can be used to cast a variety of materials including wax, gypsum, low melt alloys/metals and urethane, epoxy or polyester resins.  Important: Do not cast concrete into rubber molds made with this product. Concrete will not cure properly and inhibition will result.  

Important; you must weigh Part A & B components using a gram scale to be successful with Mold Max™ 29NV.

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FOAM-iT!™ 10 SLOW

Smooth-On’s FOAM-iT!™ Series are two-component water blown rigid foams that are versatile and easy to use. FOAM-iT!™ products are available in 3lb., 4 lb., 5 lb., 8 lb., 10 lb.,15 lb. or 26 lb. per cubic foot densities. Parts A and B are measured and mixed in equal amounts by volume. The mixture is then poured into a mold or other form (apply release agent if necessary). The mixture will expand many times original volume (depending on which FOAM-iT!™ product you are using) and develop a uniform cell structure. FOAM-iT!™ 10 SLOW is a 10 lb. density foam with a long, 3.5 minute working time, taking 1 hour to reach handling strength and 4 hours to cure. FOAM-iT!™ 10 SLOW is designed for large-pour industrial, art-related and special effects applications.

FOAM-iT!™ products can be used as a straight casting material, backfill material for hollow castings (adds structural strength) or as an encapsulation material, etc. They can be color pigmented with SO-Strong™, UVO™ or IGNITE™ colorants and are used for a variety of art/ craft, industrial design and special effects applications.

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