Smooth-On Mold Max 29NV Trial Kit

Availability: In stock (4)

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.


  • Mold Max™ 29NV has a fast cure time - 6 hours at room temperature
  • Mold Max™ 29NV does not require vacuum degassing
  • Low viscosity for easy mixing and pouring

Mix Ratio By Weight 100A:10B

Specific Gravity 1.17 g/cc

Specific Volume 23.7 cu. in./lb.

Pot Life 40 minutes

Cure Time 6 hours

Color Yellow

Shore Hardness 29 A

Tensile Strength 417 psi

100% Modulus 54 psi

Elongation @ Break 361 %

Die B Tear Strength 96 pli

Shrinkage 0.002 in. / in.

Useful Temperature (max) 400 °F

Useful Temperature (min) -65 °F

Dielectric Strength >500 volts/mil

Dielectric Constant, 100Hz 3.4

Dissipation Factor, 100Hz 0.02

Volume Resistivity 9.000000E+14 ohm/cm

Thermal Conductivity 0.21 W/M*K

Mixed Viscosity 10,000 cps


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