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Smooth-Cast™ 326

Smooth-Cast™ 326 vs. EpoxAcast™ 650 + 102 Hardener

Ultra Low Viscosity Liquid Plastics

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EpoxAcast™ 650 + 102 Hardener

Smooth-Cast™ 326 vs. EpoxAcast™ 650 + 102 HardenerSmooth-Cast™ 326

Mineral Filled General Purpose Casting Epoxy Resin

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Key Differences

Product Type
  • Urethane Resins
  • Epoxy Casting and Laminating Resins
Mixed Viscosity100 cps7,000 cps
Mix Ratio By Volume1A:1BN/A (gram scale required)
Pot Life9 minutes90 minutes
Cure Time60 minutes4 hours
Barcol 935 Hardness93
Shore D Hardness72
Specific Volume25.9 cu. in./lb.18.22 cu. in./lb.
ColorClear AmberOff White
Tensile Modulus140,000 psi1,503,000 psi
Compressive Strength3,080 psi16,350 psi
Compressive Modulus32,200 psi142,600 psi
Flexural Strength3,100 psi5,890 psi
Flexural Modulus95,700 psi710,000 psi
Shrinkage0.0075 in. / in.0.001 in. / in.
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™ 326EpoxAcast™ 650 + 102 Hardener
Product Type
  • Urethane Resins
  • Epoxy Casting and Laminating Resins
Mixed Viscosity100 cps7,000 cps
Mix Ratio By Volume1A:1B
Mix Ratio By Weight115A:100B100A:13B
Pot Life9 minutes90 minutes
Cure Time60 minutes4 hours
Barcol 935 Hardness93
Shore D Hardness72
Specific Gravity1.07 g/cc1.52 g/cc
Specific Volume25.9 cu. in./lb.18.22 cu. in./lb.
ColorClear AmberOff White
Tensile Strength3,170 psi
Tensile Modulus140,000 psi1,503,000 psi
Ultimate Tensile6,000 psi
Tensile Elongation0.42 %
Elongation @ Break10 %
Compressive Strength3,080 psi16,350 psi
Compressive Modulus32,200 psi142,600 psi
Flexural Strength3,100 psi5,890 psi
Flexural Modulus95,700 psi710,000 psi
Shrinkage0.0075 in. / in.0.001 in. / in.
Heat Deflection Temp120 °F129 °F

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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EpoxAcast™ 650 + 102 Hardener

EpoxAcast™ 650 is a mineral filled general purpose casting epoxy resin that is low cost and versatile. It features a low mixed viscosity for minimal bubble entrapment.

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Important Announcement
Smooth-On, Inc. will be closed Friday July 4th in observance of Independence Day. Resuming normal operations on Monday, July 7th.