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Econ™ 80

SORTA-Clear™ 40 vs. Econ™ 80

Lower Cost Shore 80A Urethane Rubber

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SORTA-Clear™ 40

SORTA-Clear™ 40 vs. Econ™ 80Econ™ 80

Addition Cure Silicone Rubber Compounds

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Key Differences

Product Type
  • Urethane Rubber
  • Silicone Rubber - Platinum Cure
  • Skin Safe FX Materials
Mixed Viscosity1,200 cps35,000 cps
Mix Ratio By Volume1A:1BN/A (gram scale required)
Pot Life13 minutes60 minutes
Cure Time24 hours16 hours
Shore A Hardness8040
ColorTranslucentWater Clear Translucent
Elongation @ Break127 %400 %
100% Modulus670 psi90 psi
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

Econ™ 80SORTA-Clear™ 40
Product Type
  • Urethane Rubber
  • Silicone Rubber - Platinum Cure
  • Skin Safe FX Materials
Mixed Viscosity1,200 cps35,000 cps
Mix Ratio By Volume1A:1B
Mix Ratio By Weight100A:90B100A:10B
Pot Life13 minutes60 minutes
Handling Time6 hours
Cure Time24 hours16 hours
Shore A Hardness8040
Specific Gravity1.06 g/cc1.08 g/cc
Specific Volume26.16 cu. in./lb.25.6 cu. in./lb.
ColorTranslucentWater Clear Translucent
Die B Tear Strength120 pli
Die C Tear Strength77 pli
Tensile Strength955 psi800 psi
Elongation @ Break127 %400 %
100% Modulus670 psi90 psi
Shrinkage0.0014 in. / in.<.001 in. / in.
Useful Temperature (min)-65 °F
Useful Temperature (max)450 °F

Product Description

Econ™ 80

Econ™ 80 is an economical Shore 80A urethane rubber suitable for a variety of mold making and industrial applications. It is a lower cost, faster cure alternative to our popular PMC™-780. Physical properties are lower vs. PMC™-780. This is a no odor system that features a 1A:1B mix ratio and a low viscosity for easy mixing and pouring. Working time is about 13 minutes at room temperature, handling time is 6 hours and rubber cures overnight. Econ™ 80 is translucent and easily colored with SO-Strong™ or Ignite™ colorants. Econ™ 80 is used to make short run molds for casting concrete and resins, concrete stamping pads, rubber mechanical parts, coating fabrics, pour-in-place gaskets for industrial equipment and burial vaults. Important: To minimize air bubbles in cured rubber, vacuum degassing is recommended.

FOR COMMERCIAL/INDUSTRIAL USE ONLY

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SORTA-Clear™ 40

SORTA-Clear™ Series rubbers are premium water clear translucent silicone rubbers (platinum catalyst) which cure at room temperature with negligible shrinkage. This product requires a gram scale for measuring parts A + B. SORTA-Clear™ 40 comes in Shore 40A hardness and features high tensile and tear strength.

SORTA-Clear™ silicones are ideal for making prototype, jewelry or other molds of any configuration where model visibility is important (i.e. extracting a model from the mold via cutting). Materials such as urethane, epoxy or polyester resins can then be cast into SORTA-Clear™ silicone without application of a release agent. Other materials such as wax and low melt metal alloys can also be cast into SORTA-Clear™. SORTA-Clear™ can be pigmented with SILC Pig™ silicone pigments.

SORTA Clear™ 40 silicone rubber is FOOD SAFE and can be used for culinary applications including casting chocolate and other confections.

Certified Skin Safe - Cured SORTA Clear™ 40 is skin safe and certified by an independent laboratory.

Click here for more SORTA-Clear™ silicone products.

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