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Ecoflex™ 5

Ecoflex™ 5 vs. Smooth-Cast® 310 vs. EpoxAmite™ WHITE 101

Super-Soft, Addition Cure Silicone Rubber

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Smooth-Cast® 310

Ecoflex™ 5 vs. Smooth-Cast® 310 vs. EpoxAmite™ WHITE 101Ecoflex™ 5

Bright White, Ultra Low Viscosity Liquid Plastics

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Key Differences

Product Type
  • Silicone Rubber - Platinum Cure
  • Urethane Resins
  • Epoxy Casting and Laminating Resins
Mixed Viscosity13,000 cps80 cps3,400 cps
Mix Ratio By Volume1A:1B1A:1BN/A (gram scale required)
Pot Life1 minute20 minutes20 minutes
Cure Time5 minutes4 hours15 hours
Shore D Hardness7083
Shore A Hardness5
ColorTranslucentWhiteWhite
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® 310EpoxAmite™ WHITE 101
Product Type
  • Silicone Rubber - Platinum Cure
  • Urethane Resins
  • Epoxy Casting and Laminating Resins
Mixed Viscosity13,000 cps80 cps3,400 cps
Mix Ratio By Volume1A:1B1A:1B
Mix Ratio By Weight1A:1B100A:90B100A:20B
Pot Life1 minute20 minutes20 minutes
Thin Film Working Time45 minutes
Cure Time5 minutes4 hours15 hours
Shore D Hardness7083
Shore A Hardness5
Specific Gravity1.07 g/cc1.05 g/cc1.25 g/cc
Specific Volume25.8 cu. in./lb.26.4 cu. in./lb.22.2 cu. in./lb.
ColorTranslucentWhiteWhite
Die B Tear Strength75 pli
Tensile Strength350 psi3,000 psi
Tensile Modulus134,000 psi627,000 psi
Ultimate Tensile5,130 psi
Tensile Elongation0.8 %
Elongation @ Break1,000 %7.5 %
100% Modulus15 psi
Compressive Strength3,800 psi16,290 psi
Compressive Modulus44,900 psi116,000 psi
Flexural Strength4,000 psi8,770 psi
Flexural Modulus118,000 psi465,000 psi
Shrinkage<.001 in. / in.0.0065 in. / in.
Heat Deflection Temp120 °F136 °F
Useful Temperature (min)-65 °F
Useful Temperature (max)450 °F
Flexural Strength on 6 ply / 10 oz. Laminate29,000 psi
Ultimate Tensile on 6 ply / 10 oz. Laminate24,700 psi

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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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.

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EpoxAmite™ WHITE 101

EpoxAmite™ White Epoxy Laminating System is an easy-to-use liquid epoxy system formulated for a wide variety of fabrication applications. EpoxAmite™ White Laminating System is odorless and cures at room temperature. Cured epoxy displays exceptional physical and performance properties. It can be sanded, shaped, machined, drilled, tapped and painted.

EpoxAmite™ White Laminating System can be used with reinforcements such as S-Glass, E-Glass, Kevlar and Carbon fibers for lay-up& applications or composite parts. EpoxAmite™ White Resin can also be mixed with fillers such as fumed silica for gel coat applications. Urefil™ 3, Urefil™ 7 and other fillers can be added for fairing, filleting or bonding applications.

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