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Ecoflex™ 5

Ecoflex™ 5 vs. Smooth-Cast® 310 vs. Dragon Skin™ 10 NV

Super-Soft, Addition Cure Silicone Rubber

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Smooth-Cast® 310

Ecoflex™ 5 vs. Smooth-Cast® 310 vs. Dragon Skin™ 10 NVEcoflex™ 5

Bright White, Ultra Low Viscosity Liquid Plastics

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Dragon Skin™ 10 NV

Ecoflex™ 5 vs. Smooth-Cast® 310 vs. Dragon Skin™ 10 NVEcoflex™ 5 versus Smooth-Cast® 310

Low Viscosity, High Performance Platinum Silicone

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Key Differences

Product Type
  • Silicone Rubber - Platinum Cure
  • Urethane Resins
  • Silicone Rubber - Platinum Cure
Mixed Viscosity13,000 cps80 cps6,000 cps
Pot Life1 minute20 minutes15 minutes
Cure Time5 minutes4 hours75 minutes
Shore D Hardness70
Shore A Hardness510
ColorTranslucentWhiteWater White Translucent
Tensile Strength350 psi3,000 psi400 psi
Elongation @ Break1,000 %7.5 %663 %
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™ 5Smooth-Cast® 310Dragon Skin™ 10 NV
Product Type
  • Silicone Rubber - Platinum Cure
  • Urethane Resins
  • Silicone Rubber - Platinum Cure
Mixed Viscosity13,000 cps80 cps6,000 cps
Mix Ratio By Volume1A:1B1A:1B1A:1B
Mix Ratio By Weight1A:1B100A:90B1A:1B
Pot Life1 minute20 minutes15 minutes
Cure Time5 minutes4 hours75 minutes
Shore D Hardness70
Shore A Hardness510
Specific Gravity1.07 g/cc1.05 g/cc1.07 g/cc
Specific Volume25.8 cu. in./lb.26.4 cu. in./lb.25.8 cu. in./lb.
ColorTranslucentWhiteWater White Translucent
Die B Tear Strength75 pli90 pli
Tensile Strength350 psi3,000 psi400 psi
Tensile Modulus134,000 psi
Elongation @ Break1,000 %7.5 %663 %
100% Modulus15 psi27 psi
Compressive Strength3,800 psi
Compressive Modulus44,900 psi
Flexural Strength4,000 psi
Flexural Modulus118,000 psi
Shrinkage<.001 in. / in.0.0065 in. / in.<.001 in. / in.
Heat Deflection Temp120 °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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Smooth-Cast® 310

The Smooth-Cast® 300 Series of liquid plastics are ultra-low viscosity casting resins that yield castings that are bright white and virtually bubble free. Vacuum degassing is not necessary. They offer the convenience of a 1A:1B by volume or 100A:90B by weight mix ratio. The differences between them are pot life and demold time.

These resins readily accept fillers (such as URE-FIL® 3 from Smooth-On) and can be colored with SO-Strong® or Ignite® color tints (Smooth-Cast® 325 series accepts pigments better than the Smooth Cast® 300 series). Fully cured castings are tough, durable, machinable and paintable. They resist moisture and mild solvents. Applications for Smooth-Cast® 300 Series Liquid Plastics include reproducing small to medium size sculptures, making prototype models, special effect props and decorative jewelry.

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Dragon Skin™ 10 NV

Dragon Skin™ 10 NV is a low viscosity, high performance platinum cure silicone rubber that is easy to use and versatile. Mix ratio is 1A:1B by weight or volume, pot life is 15 minutes and cure time is 75 minutes at room temperature. Rubber cures with negligible shrinkage to a Shore 10A. Vacuum degassing is not necessary Color is water white translucent.

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