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Ecoflex™ 5

Ecoflex™ 5 vs. TASK™ 6 vs. EpoxAcast™ 650 + 102 Hardener

Super-Soft, Addition Cure Silicone Rubber

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EpoxAcast™ 650 + 102 Hardener

Ecoflex™ 5 vs. TASK™ 6 vs. EpoxAcast™ 650 + 102 HardenerEcoflex™ 5

Mineral Filled General Purpose Casting Epoxy

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TASK™ 6

Ecoflex™ 5 vs. TASK™ 6 vs. EpoxAcast™ 650 + 102 HardenerEcoflex™ 5 versus EpoxAcast™ 650 + 102 Hardener

Low Cost, High Performance

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Key Differences

Product Type
  • Silicone Rubber - Platinum Cure
  • Epoxy Casting and Laminating Resins
  • Urethane Resins
Mixed Viscosity13,000 cps7,000 cps800 cps
Mix Ratio By Volume1A:1BN/A (gram scale required)1A:1B
Pot Life1 minute90 minutes7 minutes
Cure Time5 minutes4 hours75 minutes
Barcol 935 Hardness93
Shore D Hardness75
Shore A Hardness5
Specific Volume25.8 cu. in./lb.18.22 cu. in./lb.25.9 cu. in./lb.
ColorTranslucentOff WhiteTan
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 HardenerTASK™ 6
Product Type
  • Silicone Rubber - Platinum Cure
  • Epoxy Casting and Laminating Resins
  • Urethane Resins
Mixed Viscosity13,000 cps7,000 cps800 cps
Mix Ratio By Volume1A:1B1A:1B
Mix Ratio By Weight1A:1B100A:13B1A:1B
Pot Life1 minute90 minutes7 minutes
Cure Time5 minutes4 hours75 minutes
Barcol 935 Hardness93
Shore D Hardness75
Shore A Hardness5
Specific Gravity1.07 g/cc1.52 g/cc1.07 g/cc
Specific Volume25.8 cu. in./lb.18.22 cu. in./lb.25.9 cu. in./lb.
ColorTranslucentOff WhiteTan
Die B Tear Strength75 pli
Tensile Strength350 psi5,200 psi
Tensile Modulus1,503,000 psi146,000 psi
Ultimate Tensile6,000 psi
Elongation @ Break1,000 %4 %
100% Modulus15 psi
Compressive Strength16,350 psi5,570 psi
Compressive Modulus142,600 psi65,000 psi
Flexural Strength5,890 psi6,200 psi
Flexural Modulus710,000 psi182,500 psi
Shrinkage<.001 in. / in.0.001 in. / in.0.0031 in. / in.
Heat Deflection Temp129 °F162 °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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TASK™ 6

TASK™ 6 low cost, high performance casting resin yields castings that are tan and virtually bubble free. This resin offers superior physical and performance properties compared to our popular Smooth-Cast™ Series of general purpose casting resins. Vacuum degassing is not necessary and it offers the convenience of a 1A:1B by volume or weight mix ratio.

TASK™ 6 has high tensile and flexural strength, as well as high flexural modulus. This plastic was formulated for a variety of industrial applications including pattern making and making prototype models. This resin is designed for casting in thicknesses up to ½” (1.27 cm).

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