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Smooth-Cast™ 326

Smooth-Cast™ 326 vs. Matrix Dryve™

Ultra Low Viscosity Liquid Plastics

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Matrix Dryve™

Smooth-Cast™ 326 vs. Matrix Dryve™Smooth-Cast™ 326

All-powder polymer modified gypsum system

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Key Differences

Product Type
  • Urethane Resins
  • Flame Rated Materials
  • Polymer Modifiers for Concrete and Gypsum
Mixed Viscosity100 cpsVariable
Pot Life9 minutes20 minutes
Cure Time60 minutes90 minutes
Shore D Hardness72
Specific Volume25.9 cu. in./lb.17.45 cu. in./lb.
ColorClear AmberWhite
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

Smooth-Cast™ 326Matrix Dryve™
Product Type
  • Urethane Resins
  • Flame Rated Materials
  • Polymer Modifiers for Concrete and Gypsum
Mixed Viscosity100 cpsVariable
Mix Ratio By Volume1A:1B3 Parts Powder : 1 Part Water By Volume
Mix Ratio By Weight115A:100B100 Parts Powder : 27 Parts Water by Weight
Pot Life9 minutes20 minutes
Cure Time60 minutes90 minutes
Shore D Hardness72
Specific Gravity1.07 g/cc
Specific Volume25.9 cu. in./lb.17.45 cu. in./lb.
ColorClear AmberWhite
Tensile Strength3,170 psi3300 - 5500 psi
Tensile Modulus140,000 psi
Elongation @ Break10 %
Compressive Strength3,080 psi6500 - 9500 psi
Compressive Modulus32,200 psi
Flexural Strength3,100 psi
Flexural Modulus95,700 psi
Shrinkage0.0075 in. / in.
Heat Deflection Temp120 °F
Useful Temperature (max)200 °F
Density99 lbs lb/ft³
Flexural Strength on 6 ply / 10 oz. Laminate7500 - 9800 psi
Freeze / Thaw Resistance300 cycles
Impact Resistance175 in lb / in²
Water Absorption0.5 ‰ after 24 hour water soak

Product Description

Smooth-Cast™ 326

The Smooth-Cast™ 325, 326 & 327 ColorMatch™ Series plastics are fast-cast resins that were developed specifically for adding color pigments and fillers to achieve true color representation or filler effect. The ColorMatch™ Series is formulated “color neutral”. Small amounts of pigment will yield accurate, vivid colors from cured castings using So-Strong™ tints or Ignite™ color pigments. The ColorMatch™ Series offers the convenience of a 1A: 1B mix ratio by volume and has a very low viscosity. Demold times range from about 10 minutes to 2-4 hours (depending on product, mass and mold configuration). Note: Large mass castings will get very hot and shrink more, depending on mold configuration.

The ColorMatch™ Series also readily accept fillers (such as URE-FIL™ 3 from Smooth-On). Applications for the ColorMatch™ Series plastics include making pigmented prototype models or figures, special effect props, reproducing small to medium size sculptures, decorative jewelry, etc.

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Matrix Dryve™

Matrix Dryve™ is a versatile all-powder polymer modified gypsum system that has superior physical and performance properties compared to regular gypsum products. It is an “all-powder” alternative to our original Matrix™ NEO powder/liquid system.

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