Compare Tool

remove

Ecoflex™ 5

Ecoflex™ 5 vs. Smooth-Cast® 380 vs. Epsilon™ PRO

Super-Soft, Addition Cure Silicone Rubber

 View Product

Vs.
remove

Epsilon™ PRO

Ecoflex™ 5 vs. Smooth-Cast® 380 vs. Epsilon™ PROEcoflex™ 5

High Performance Impact Resistant EPS Foam Coating

 View Product

Vs.
remove

Smooth-Cast® 380

Ecoflex™ 5 vs. Smooth-Cast® 380 vs. Epsilon™ PROEcoflex™ 5 versus Epsilon™ PRO

High Density Urethane Tooling Resin

 View Product

Add Material to Compare

start over

Key Differences

Product Type
  • Silicone Rubber - Platinum Cure
  • Epoxy and Urethane Coatings
  • Urethane Resins
Mixed Viscosity13,000 cps4,000 cps1,140 cps
Pot Life1 minute22 minutes6 minutes
Cure Time5 minutes16 hours60 minutes
Shore D Hardness6582
Shore A Hardness5
Specific Volume25.8 cu. in./lb.25.0 cu. in./lb.15.9 cu. in./lb.
ColorTranslucentClear AmberTan
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™ PROSmooth-Cast® 380
Product Type
  • Silicone Rubber - Platinum Cure
  • Epoxy and Urethane Coatings
  • Urethane Resins
Mixed Viscosity13,000 cps4,000 cps1,140 cps
Mix Ratio By Volume1A:1B2A:1B1A:1B
Mix Ratio By Weight1A:1B100A:44B1A:1B
Pot Life1 minute22 minutes6 minutes
Thin Film Working Time35 minutes
Thin Film Recoat Time3 hours
Cure Time5 minutes16 hours60 minutes
Shore D Hardness6582
Shore A Hardness5
Specific Gravity1.07 g/cc1.11 g/cc1.74 g/cc
Specific Volume25.8 cu. in./lb.25.0 cu. in./lb.15.9 cu. in./lb.
ColorTranslucentClear AmberTan
Die B Tear Strength75 pli
Tensile Strength350 psi3,550 psi
Tensile Modulus490,000 psi
Elongation @ Break1,000 %1.43 %
100% Modulus15 psi
Compressive Strength7,860 psi
Compressive Modulus126,000 psi
Flexural Strength4,870 psi
Flexural Modulus315,000 psi
Shrinkage<.001 in. / in.0.0025 in. / in.
Heat Deflection Temp125 °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.

Read More

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. 

Read More

Smooth-Cast® 380

Smooth-Cast® 380 is a filled, high density casting resin formulated for a variety of tooling applications. This no-odor resin features a convenient 1A:1B mix ratio by volume, a 6 minute pot-life and cure time of about 60 minutes depending on mass and temperature. Low viscosity ensures minimal bubble entrapment and long term shrinkage of cured resin is very low. Cured material is very strong can be machined, drilled, sanded, etc. Color can be added with SO-Strong® color tints.

Read More

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 ›