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Ecoflex™ 5

Ecoflex™ 5 vs. Alja-Safe™ Breeze vs. EpoxAcast™ 650 + 102 Hardener

Super-Soft, Addition Cure Silicone Rubber

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EpoxAcast™ 650 + 102 Hardener

Ecoflex™ 5 vs. Alja-Safe™ Breeze vs. EpoxAcast™ 650 + 102 HardenerEcoflex™ 5

Mineral Filled General Purpose Casting Epoxy

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Alja-Safe™ Breeze

Ecoflex™ 5 vs. Alja-Safe™ Breeze vs. EpoxAcast™ 650 + 102 HardenerEcoflex™ 5 versus EpoxAcast™ 650 + 102 Hardener

Crystalline Silica-Free Liquid Alginate

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Key Differences

Product Type
  • Silicone Rubber - Platinum Cure
  • Epoxy Casting and Laminating Resins
  • Lifecasting Materials
Mixed Viscosity13,000 cps7,000 cpsVariable
Mix Ratio By Volume1A:1BN/A (gram scale required)5 Parts Warm Water (80° F / 27° C) to 1 Part Alja-Safe Breeze liquid
Pot Life1 minute90 minutes3 minutes
Cure Time5 minutes4 hours8 minutes
Barcol 935 Hardness93
Shore A Hardness5
Specific Volume25.8 cu. in./lb.18.22 cu. in./lb.26 cu. in./lb.
ColorTranslucentOff WhiteBlue
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 HardenerAlja-Safe™ Breeze
Product Type
  • Silicone Rubber - Platinum Cure
  • Epoxy Casting and Laminating Resins
  • Lifecasting Materials
Mixed Viscosity13,000 cps7,000 cpsVariable
Mix Ratio By Volume1A:1B5 Parts Warm Water (80° F / 27° C) to 1 Part Alja-Safe Breeze liquid
Mix Ratio By Weight1A:1B100A:13B
Pot Life1 minute90 minutes3 minutes
Cure Time5 minutes4 hours8 minutes
Barcol 935 Hardness93
Shore A Hardness5
Specific Gravity1.07 g/cc1.52 g/cc
Specific Volume25.8 cu. in./lb.18.22 cu. in./lb.26 cu. in./lb.
ColorTranslucentOff WhiteBlue
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 °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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Alja-Safe™ Breeze

No powder - no dust! Alja-Safe™ Breeze (Patent Pending) is a new liquid alginate which blends easily with water, creating a unique, skin safe moldmaking material. Alja-Safe™ Breeze is perfect for making single-use pourable molds of hands, feet and other body parts. It captures excellent detail, giving you an accurate reproduction of your original. If you want to make a mold of vertical body surfaces, you can use original Alja-Safe™ or Alja-Safe™ Acrobat™.

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