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Ecoflex™ 5

Ecoflex™ 5 vs. EpoxAcast™ 650 + 102 Hardener vs. Econ® 60

Super-Soft, Addition Cure Silicone Rubber

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EpoxAcast™ 650 + 102 Hardener

Ecoflex™ 5 vs. EpoxAcast™ 650 + 102 Hardener vs. Econ® 60Ecoflex™ 5

Mineral Filled General Purpose Casting Epoxy

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Econ® 60

Ecoflex™ 5 vs. EpoxAcast™ 650 + 102 Hardener vs. Econ® 60Ecoflex™ 5 versus EpoxAcast™ 650 + 102 Hardener

Lower Cost Shore 60A Urethane Rubber

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Key Differences

Product Type
  • Silicone Rubber - Platinum Cure
  • Epoxy Casting and Laminating Resins
  • Urethane Rubber
Mixed Viscosity13,000 cps7,000 cps1,400 cps
Mix Ratio By Volume1A:1BN/A (gram scale required)1A:1B
Pot Life1 minute90 minutes6 minutes
Cure Time5 minutes4 hours16 hours
Barcol 935 Hardness93
Shore A Hardness560
Specific Volume25.8 cu. in./lb.18.22 cu. in./lb.26.7 cu. in./lb.
ColorTranslucentOff WhiteTranslucent Amber
Disclaimer
Although we do our best to ensure the accuracy of this Compare Tool, Smooth-On offers no warranty either expressed or implied as to the reliability of the information contained herein. Smooth-On assumes no liability for loss or damage associated with use of the Compare Tool. If this is a critical project, we encourage you to review all of the technical data below and contact our Technical Service department with any questions or concerns.

All Technical Data

Ecoflex™ 5EpoxAcast™ 650 + 102 HardenerEcon® 60
Product Type
  • Silicone Rubber - Platinum Cure
  • Epoxy Casting and Laminating Resins
  • Urethane Rubber
Mixed Viscosity13,000 cps7,000 cps1,400 cps
Mix Ratio By Volume1A:1B1A:1B
Mix Ratio By Weight1A:1B100A:13B1A:1B
Pot Life1 minute90 minutes6 minutes
Handling Time4 hours
Cure Time5 minutes4 hours16 hours
Barcol 935 Hardness93
Shore A Hardness560
Specific Gravity1.07 g/cc1.52 g/cc1.04 g/cc
Specific Volume25.8 cu. in./lb.18.22 cu. in./lb.26.7 cu. in./lb.
ColorTranslucentOff WhiteTranslucent Amber
Die B Tear Strength75 pli
Die C Tear Strength85 pli
Tensile Strength350 psi350 psi
Tensile Modulus1,503,000 psi
Ultimate Tensile6,000 psi
Elongation @ Break1,000 %500 %
100% Modulus15 psi82 psi
Compressive Strength16,350 psi
Compressive Modulus142,600 psi
Flexural Strength5,890 psi
Flexural Modulus710,000 psi
Shrinkage<.001 in. / in.0.001 in. / in.<0.001 in. / in.
Heat Deflection Temp129 °F
Useful Temperature (min)-65 °F
Useful Temperature (max)450 °F

Product Description

Ecoflex™ 5

Ecoflex™ rubbers are platinum-catalyzed silicones that are versatile and easy to use. Ecoflex™ rubbers are mixed 1A:1B by weight or volume and cured at room temperature with negligible shrinkage.  Low viscosity ensures easy mixing and de-airing. Dispense using our convenient dispensing cartridges. Cured rubber is very soft, very strong and very “stretchy”, stretching many times its original size without tearing and will rebound to its original form without distortion.

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EpoxAcast™ 650 + 102 Hardener

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

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Econ® 60

Econ® 60 is an economical and fast curing Shore 60A urethane rubber. It has no odor, features a convenient 1A:1B by volume mix ratio and a low viscosity for easy mixing and pouring.  Working time is about 6 minutes and handling time is 4 hours at room temperature. Translucent clear amber color (light passes through) makes Econ® 60 easy to color with SO Strong®, UVO® or IGNITE® colorants.  Econ® 60 is used to make limited run production rubber molds, stamping pads, rubber prototype parts, rubber props and pour-in-place gaskets for industrial equipment. It is also suitable for coating fabrics.

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