Compare Tool

remove

Ecoflex™ 5

Ecoflex™ 5 vs. ReoFlex™ 30 vs. Smooth-Cast® 310

Super-Soft, Addition Cure Silicone Rubber

 View Product

Vs.
remove

Smooth-Cast® 310

Ecoflex™ 5 vs. ReoFlex™ 30 vs. Smooth-Cast® 310Ecoflex™ 5

Bright White, Ultra Low Viscosity Liquid Plastics

 View Product

Vs.
remove

ReoFlex™ 30

Ecoflex™ 5 vs. ReoFlex™ 30 vs. Smooth-Cast® 310Ecoflex™ 5 versus Smooth-Cast® 310

'Next Generation' Urethane Rubber

 View Product

Add Material to Compare

start over

Key Differences

Product Type
  • Silicone Rubber - Platinum Cure
  • Urethane Resins
  • Urethane Rubber
Mixed Viscosity13,000 cps80 cps1,500 cps
Pot Life1 minute20 minutes30 minutes
Cure Time5 minutes4 hours16 hours
Shore D Hardness70
Shore A Hardness530
ColorTranslucentWhiteOff White
Tensile Strength350 psi3,000 psi450 psi
Elongation @ Break1,000 %7.5 %1,000 %
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® 310ReoFlex™ 30
Product Type
  • Silicone Rubber - Platinum Cure
  • Urethane Resins
  • Urethane Rubber
Mixed Viscosity13,000 cps80 cps1,500 cps
Mix Ratio By Volume1A:1B1A:1B1A:1B
Mix Ratio By Weight1A:1B100A:90B1A:1B
Pot Life1 minute20 minutes30 minutes
Cure Time5 minutes4 hours16 hours
Shore D Hardness70
Shore A Hardness530
Specific Gravity1.07 g/cc1.05 g/cc1.01 g/cc
Specific Volume25.8 cu. in./lb.26.4 cu. in./lb.27.5 cu. in./lb.
ColorTranslucentWhiteOff White
Die B Tear Strength75 pli
Die C Tear Strength82 pli
Tensile Strength350 psi3,000 psi450 psi
Tensile Modulus134,000 psi
Elongation @ Break1,000 %7.5 %1,000 %
100% Modulus15 psi67 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.

Read More

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.

Read More

ReoFlex™ 30

ReoFlex™ urethane rubbers offer superior physical and performance properties for production casting of wax, plasters, and resins. ReoFlex™ urethanes are available in 20A, 30A, 40A, 50A and 60A Shore hardnesses and feature convenient one-to-one by volume mix ratios. Vacuum degassing is not necessary and ReoFlex™ rubbers cure with negligible shrinkage to a durable rubber that will last in production. ReoFlex™ “Wet” rubbers will shrink somewhat over time vs. “Dry” formulations.

ReoFlex™ mold rubbers are used for a variety of applications including making molds to reproduce sculpture and architectural elements, as well as for making special effects, toys and prototypes. Vibrant colors can be achieved by adding So-Strong™ Color Tints, available from Smooth-On.

Casting Concrete? Look into the VytaFlex™ series of urethane mold rubbers. VytaFlex™ urethanes were formulated specifically for casting concrete / pigmented concrete and feature Smooth-On’s exclusive ‘V-Polymer™’ technology.

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 ›