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Ecoflex™ 5

Ecoflex™ 5 vs. EpoxAcast™ 650 + 102 Hardener vs. EpoxAcoat™ HT

Super-Soft, Addition Cure Silicone Rubber

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EpoxAcast™ 650 + 102 Hardener

Ecoflex™ 5 vs. EpoxAcast™ 650 + 102 Hardener vs. EpoxAcoat™ HTEcoflex™ 5

Mineral Filled General Purpose Casting Epoxy

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EpoxAcoat™ HT

Ecoflex™ 5 vs. EpoxAcast™ 650 + 102 Hardener vs. EpoxAcoat™ HTEcoflex™ 5 versus EpoxAcast™ 650 + 102 Hardener

High Temp Surface Coat Epoxy

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Key Differences

Product Type
  • Silicone Rubber - Platinum Cure
  • Epoxy Casting and Laminating Resins
  • Epoxy Casting and Laminating Resins
  • Epoxy and Urethane Coatings
Mixed Viscosity13,000 cps7,000 cpsLight Paste
Mix Ratio By Volume1A:1BN/A (gram scale required)N/A (gram scale required)
Pot Life1 minute90 minutes40 minutes
Cure Time5 minutes4 hours24 hours
Barcol 935 Hardness93
Shore D Hardness85
Shore A Hardness5
ColorTranslucentOff WhiteDark Red
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 HardenerEpoxAcoat™ HT
Product Type
  • Silicone Rubber - Platinum Cure
  • Epoxy Casting and Laminating Resins
  • Epoxy Casting and Laminating Resins
  • Epoxy and Urethane Coatings
Mixed Viscosity13,000 cps7,000 cpsLight Paste
Mix Ratio By Volume1A:1B
Mix Ratio By Weight1A:1B100A:13B100A:18B
Pot Life1 minute90 minutes40 minutes
Thin Film Working Time75 minutes
Thin Film Recoat Time4 hours
Cure Time5 minutes4 hours24 hours
Barcol 935 Hardness93
Shore D Hardness85
Shore A Hardness5
Specific Gravity1.07 g/cc1.52 g/cc
Specific Volume25.8 cu. in./lb.18.22 cu. in./lb.
ColorTranslucentOff WhiteDark Red
Die B Tear Strength75 pli
Tensile Strength350 psi
Tensile Modulus1,503,000 psi
Ultimate Tensile6,000 psi
Elongation @ Break1,000 %
100% Modulus15 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.
Heat Deflection Temp129 °F133 °F
Useful Temperature (min)-65 °F
Useful Temperature (max)450 °F
Heat Deflection With Post Cure284 °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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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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