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Ecoflex™ 5

Ecoflex™ 5 vs. TASK™ 3 vs. TASK™ 14

Super-Soft, Addition Cure Silicone Rubber

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TASK™ 14

Ecoflex™ 5 vs. TASK™ 3 vs. TASK™ 14Ecoflex™ 5

Semi-Rigid Black Urethane Casting Resin

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TASK™ 3

Ecoflex™ 5 vs. TASK™ 3 vs. TASK™ 14Ecoflex™ 5 versus TASK™ 14

Performance Casting Resins

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Key Differences

Product Type
  • Silicone Rubber - Platinum Cure
  • Urethane Resins
  • Urethane Resins
Mixed Viscosity13,000 cps800 cps150 cps
Mix Ratio By Volume1A:1BN/A (gram scale required)1A:1B
Pot Life1 minute10 minutes20 minutes
Cure Time5 minutes45 minutes90 minutes
Shore D Hardness5080
Shore A Hardness5
ColorTranslucentBlackWhite
Tensile Strength350 psi1,800 psi6,650 psi
Elongation @ Break1,000 %125 %6 %
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™ 5TASK™ 14TASK™ 3
Product Type
  • Silicone Rubber - Platinum Cure
  • Urethane Resins
  • Urethane Resins
Mixed Viscosity13,000 cps800 cps150 cps
Mix Ratio By Volume1A:1B1A:1B
Mix Ratio By Weight1A:1B100A:120B115A:100B
Pot Life1 minute10 minutes20 minutes
Cure Time5 minutes45 minutes90 minutes
Shore D Hardness5080
Shore A Hardness5
Specific Gravity1.07 g/cc1.15 g/cc1.12 g/cc
Specific Volume25.8 cu. in./lb.24.1 cu. in./lb.24.7 cu. in./lb.
ColorTranslucentBlackWhite
Die B Tear Strength75 pli
Tensile Strength350 psi1,800 psi6,650 psi
Tensile Modulus290,000 psi
Elongation @ Break1,000 %125 %6 %
100% Modulus15 psi
Compressive Strength8,300 psi
Compressive Modulus78,000 psi
Flexural Strength9,500 psi
Flexural Modulus288,000 psi
Shrinkage<.001 in. / in.0.0035 in. / in.0.0025 in. / in.
Heat Deflection Temp134 °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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TASK™ 14

TASK™ 14 is a fast setting two-component urethane that cures quickly to black semi-rigid plastic. TASK™ 14 offers a longer pot life (10 minutes) and demold time of 45 minutes.

With a Shore value of 50D, these semi-rigid plastics are used for a variety of industrial applications including fast mold making, fast model duplication, prototyping, durable miniatures, black props and special effects, or making parts that are impact resistant. Fully cured castings are tough, durable and chemical resistant.

For Best Results… Do not cast TASK™ 14 into platinum cure (addition cure) silicone molds.

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TASK™ 3

TASK™ 3 low viscosity, high performance casting 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 (115A:100B by weight) mix ratio.

TASK™ 3 is white. It 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). TASK™ Plastics are moderately priced and are available in trial kits, one-gallon, five-gallon, 55-gallon drum and totes.

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