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Ecoflex™ 5

Ecoflex™ 5 vs. Crystal Clear™ 200

Super-Soft, Addition Cure Silicone Rubber

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Crystal Clear™ 200

Ecoflex™ 5 vs. Crystal Clear™ 200Ecoflex™ 5

Clear Urethane Casting Resin

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Key Differences

Product Type
  • Silicone Rubber - Platinum Cure
  • Urethane Resins
Mixed Viscosity13,000 cps600 cps
Mix Ratio By Volume1A:1BN/A (gram scale required)
Pot Life1 minute20 minutes
Cure Time5 minutes16 hours
Shore D Hardness80
Shore A Hardness5
ColorTranslucentClear
Tensile Strength350 psi2,500 psi
Elongation @ Break1,000 %10 %
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™ 5Crystal Clear™ 200
Product Type
  • Silicone Rubber - Platinum Cure
  • Urethane Resins
Mixed Viscosity13,000 cps600 cps
Mix Ratio By Volume1A:1B
Mix Ratio By Weight1A:1B100A:90B
Pot Life1 minute20 minutes
Cure Time5 minutes16 hours
Shore D Hardness80
Shore A Hardness5
Specific Gravity1.07 g/cc1.036 g/cc
Specific Volume25.8 cu. in./lb.26.7 cu. in./lb.
ColorTranslucentClear
Die B Tear Strength75 pli
Tensile Strength350 psi2,500 psi
Elongation @ Break1,000 %10 %
100% Modulus15 psi
Compressive Strength6,385 psi
Compressive Modulus40,000 psi
Flexural Strength10,650 psi
Flexural Modulus200,000 psi
Shrinkage<.001 in. / in.0.001 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.

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Crystal Clear™ 200

Crystal Clear™ 200 is a water white clear and made specifically for applications that require clarity. These rigid urethane casting resins differ only in working and demold times. Low viscosity ensures easy mixing and pouring. Crystal Clear™ resins cure at room temperature* with negligible shrinkage.

CAUTION: NOT FOR HOME USE. THIS PRODUCT IS FOR INDUSTRIAL USE ONLY. With adequate local exhaust ventilation, respiratory protection is not normally required when using this product. Where risk assessment shows air-purifying respirators are appropriate, follow OSHA respirator regulations and European Standards EN 141, 143 and 371. Protective clothing (gloves and long sleeves) is required to minimize the risk of dermal sensitization. If breathing is affected or a dermal rash develops, immediately cease using this product and seek medical attention. Read SDS before using.

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Silicone Rubber - Tin Cure ›

Silicone Rubber - Platinum Cure ›

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