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Ecoflex™ 5

Dragon Skin™ FX‑ Pro™ vs. Ecoflex™ 5 vs. EpoxAcast™ 655 + 102 Hardener

Super-Soft, Addition Cure Silicone Rubber

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Dragon Skin™ FX‑ Pro™

Dragon Skin™ FX‑ Pro™ vs. Ecoflex™ 5 vs. EpoxAcast™ 655 + 102 HardenerEcoflex™ 5 versus EpoxAcast™ 655 + 102 Hardener

Soft, stable, high performance platinum silicone rubber.

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Key Differences

Product Type
  • Silicone Rubber - Platinum Cure
  • Epoxy Casting and Laminating Resins
  • Silicone Rubber - Platinum Cure
  • Skin Safe FX Materials
Mixed Viscosity13,000 cps23,000 cps18,000 cps
Mix Ratio By Volume1A:1BN/A (gram scale required)1A:1B
Pot Life1 minute75 minutes12 minutes
Cure Time5 minutes9 hours40 minutes
Shore D Hardness90
Shore A Hardness52
Specific Volume25.8 cu. in./lb.16.7 cu. in./lb.25.0 cu. in./lb.
ColorTranslucentGreyTranslucent
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™ 655 + 102 HardenerDragon Skin™ FX‑ Pro™
Product Type
  • Silicone Rubber - Platinum Cure
  • Epoxy Casting and Laminating Resins
  • Silicone Rubber - Platinum Cure
  • Skin Safe FX Materials
Mixed Viscosity13,000 cps23,000 cps18,000 cps
Mix Ratio By Volume1A:1B1A:1B
Mix Ratio By Weight1A:1B100A:11B1A:1B
Pot Life1 minute75 minutes12 minutes
Cure Time5 minutes9 hours40 minutes
Shore D Hardness90
Shore A Hardness52
Specific Gravity1.07 g/cc1.66 g/cc1.062 g/cc
Specific Volume25.8 cu. in./lb.16.7 cu. in./lb.25.0 cu. in./lb.
ColorTranslucentGreyTranslucent
Die B Tear Strength75 pli61 pli
Tensile Strength350 psi288 psi
Tensile Modulus2,040,000 psi
Ultimate Tensile4,810 psi
Elongation @ Break1,000 %763 %
100% Modulus15 psi37.8 psi
Compressive Strength12,500 psi
Compressive Modulus125,500 psi
Flexural Strength7,660 psi
Flexural Modulus1,403,000 psi
Shrinkage<.001 in. / in.0.0006 in. / in.<.001 in. / in.
Heat Deflection Temp135 °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™ 655 + 102 Hardener

EpoxAcast655 (formerly Metalset™ A-30) is a versatile aluminum filled castable epoxy that is very hard and strong. It is dimensionally stable, even when mass cast up to 512 in3 / 8,390 cm3.

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Dragon Skin™ FX‑ Pro™

Dragon Skin™ FX-Pro™ is a soft, stable, high performance platinum silicone rubber specifically designed for creating silicone makeup appliances and skin effects. Dragon Skin™ FX-Pro™ is compatible with Skin-Tite™ silicone adhesive as well as medical grade pressure sensitive adhesives for adhering silicone appliances temporarily to the skin. Soft and stretchy FX-Pro™ has a Shore hardness of 2A. FX-Pro™ can be combined with SLACKER™ deadening agent to create a very soft silicone gel for filling encapsulated silicone pieces. An infinite number of color effects can be achieved by adding Silc-Pig™ silicone pigments. Cured rubber can also be painted with the Psycho Paint™ system.

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