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Smooth-Cast™ 326

Smooth-Cast™ 326 vs. EpoxAcoat™ HT

Ultra Low Viscosity Liquid Plastics

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EpoxAcoat™ HT

Smooth-Cast™ 326 vs. EpoxAcoat™ HTSmooth-Cast™ 326

High Temp Surface Coat Epoxy

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Key Differences

Product Type
  • Urethane Resins
  • Epoxy Casting and Laminating Resins
  • Epoxy and Urethane Coatings
Mixed Viscosity100 cpsLight Paste
Mix Ratio By Volume1A:1BN/A (gram scale required)
Pot Life9 minutes40 minutes
Cure Time60 minutes24 hours
Shore D Hardness7285
ColorClear AmberDark Red
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™ 326EpoxAcoat™ HT
Product Type
  • Urethane Resins
  • Epoxy Casting and Laminating Resins
  • Epoxy and Urethane Coatings
Mixed Viscosity100 cpsLight Paste
Mix Ratio By Volume1A:1B
Mix Ratio By Weight115A:100B100A:18B
Pot Life9 minutes40 minutes
Thin Film Working Time75 minutes
Thin Film Recoat Time4 hours
Cure Time60 minutes24 hours
Shore D Hardness7285
Specific Gravity1.07 g/cc
Specific Volume25.9 cu. in./lb.
ColorClear AmberDark Red
Tensile Strength3,170 psi
Tensile Modulus140,000 psi
Elongation @ Break10 %
Compressive Strength3,080 psi
Compressive Modulus32,200 psi
Flexural Strength3,100 psi
Flexural Modulus95,700 psi
Shrinkage0.0075 in. / in.
Heat Deflection Temp120 °F133 °F
Heat Deflection With Post Cure284 °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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EpoxAcoat™ HT

EpoxAcoat™ HT is a slightly thixotropic epoxy gel coat that offers high heat resistance (post cure required).  Cured epoxy is tough and offers exceptional abrasion resistance.  This surface coat will wet out well over a variety of surfaces with good sag resistance.  Applications include laminating, precision tooling, master and pattern making, core boxes and fixtures.
Use as a surface coat for EpoxAmite™ HT high temperature laminating epoxy.

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