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Ecoflex™ 5

Ecoflex™ 5 vs. EZ-Spray® Plastic vs. Epsilon™ PRO

Super-Soft, Addition Cure Silicone Rubber

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Epsilon™ PRO

Ecoflex™ 5 vs. EZ-Spray® Plastic vs. Epsilon™ PROEcoflex™ 5

High Performance Impact Resistant EPS Foam Coating

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EZ-Spray® Plastic

Ecoflex™ 5 vs. EZ-Spray® Plastic vs. Epsilon™ PROEcoflex™ 5 versus Epsilon™ PRO

Sprayable Urethane Plastic Compound

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Key Differences

Product Type
  • Silicone Rubber - Platinum Cure
  • Epoxy and Urethane Coatings
  • Urethane Resins
Mixed Viscosity13,000 cps4,000 cpsVariable
Pot Life1 minute22 minutes2 seconds
Cure Time5 minutes16 hours3 hours
Shore D Hardness6575
Shore A Hardness5
ColorTranslucentClear AmberOff White
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™ 5Epsilon™ PROEZ-Spray® Plastic
Product Type
  • Silicone Rubber - Platinum Cure
  • Epoxy and Urethane Coatings
  • Urethane Resins
Mixed Viscosity13,000 cps4,000 cpsVariable
Mix Ratio By Volume1A:1B2A:1B1A:1B
Mix Ratio By Weight1A:1B100A:44B
Pot Life1 minute22 minutes2 seconds
Thin Film Working Time35 minutes
Thin Film Recoat Time3 hours
Cure Time5 minutes16 hours3 hours
Shore D Hardness6575
Shore A Hardness5
Specific Gravity1.07 g/cc1.11 g/cc1.11 g/cc
Specific Volume25.8 cu. in./lb.25.0 cu. in./lb.25 cu. in./lb.
ColorTranslucentClear AmberOff White
Die B Tear Strength75 pli
Tensile Strength350 psi
Tensile Modulus100,000 psi
Ultimate Tensile2,650 psi
Elongation @ Break1,000 %10 %
100% Modulus15 psi
Compressive Strength5,000 psi
Compressive Modulus45,000 psi
Flexural Strength5,000 psi
Flexural Modulus153,000 psi
Shrinkage<.001 in. / in.0.016 in. / in.
Heat Deflection Temp130 °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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Epsilon™ PRO

Epsilon™ PRO is a thixotropic epoxy coating that self-thickens for brushing onto a variety of surfaces.  Compared to original Epsilon™, Epsilon™ PRO offers a longer working time and cured epoxy is semi-rigid, offering better impact resistance.  Mix ratio for Epsilon™ PRO is 2A:1B by volume (100A:44B by weight).  A gram scale is not needed to use this product.

Applied in thin layers, mixed material holds a vertical surface without sagging or slumping. Material wets out uniformly over different surfaces.  Pot life is 22 minutes, with a re-coat time of 3 hours.  All layers should be allowed to cure for 16 hours at 73° F / 23° C and can be accelerated with mild heat.  Epsilon™ PRO is clear and can be easily colored using Ignite™ or UVO™ colorants.  Cured coating has a gloss finish and can be sanded, primed and painted.

Applications: Epsilon™ PRO is suitable for use as a protective, impact resistant coating for EPS or polyurethane foam. It can also be applied to plaster, concrete, wood and fabrics. This product is not sensitive to moisture / humidity and contains no VOC’s. 

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EZ-Spray® Plastic

EZ~Spray® Plastic is an improved version of our original sprayable polyurethane plastic compound. With higher impact resistance, this new spray plastic was specifically formulated to be mixed and sprayed via Smooth-On’s EZ~Spray® Jr. Spray System. EZ~Spray® Plastic is versatile and can be sprayed over a rubber mold to create “mother molds” or support shells. It can also be sprayed or meter mixed into rubber molds as a fast setting casting resin. Cured plastic is lightweight, tough and durable. EZ~Spray® Plastic has a fast gel time for vertical surface application. Material cures in about 3 hours (depending on mass). Refer to the EZ~Spray® Machine Jr. Video Manual before spraying plastic.

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Select a Material from a Category Below

Silicone Rubber - Tin Cure ›

Silicone Rubber - Platinum Cure ›

Urethane Rubber ›

Polysulfide Rubber ›

Urethane Resins ›

Epoxy Casting and Laminating Resins ›

Epoxy Putties ›

Epoxy and Urethane Coatings ›

Mix and Pour Expanding Foams ›

Adhesives ›

Lifecasting Materials ›

Skin Safe FX Materials ›

Polymer Modifiers for Concrete and Gypsum ›