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Ecoflex™ 5

Ecoflex™ 5 vs. Soma Foama™ 25Soma Foama™ 25

Super-Soft, Addition Cure Silicone Rubber

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Key Differences

Product Type
  • Silicone Expanding Foams - Platinum Cure
  • Silicone Rubber - Platinum Cure
Mixed Viscosity10,000 cps13,000 cps
Pot Life90 seconds1 minute
Cure Time1 hour5 minutes
Shore A Hardness5
Specific Volume69 cu. in./lb.25.8 cu. in./lb.
ColorWhiteTranslucent
Disclaimer
Although we do our best to ensure accuracy, Smooth-On offers no warranties, promises, and/or representations of any kind, either expressed or implied, as to the accuracy, completeness, or reliability of the information contained on this Compare Tool, nor suitability of the information contained herein to your particular circumstances. Smooth-On assumes no liability for losses or damages of whatever nature (direct, indirect, consequential or other) associated with your use, or inability to use, the Compare Tool, or from your use (or failure to use) the information contained herein. Other useful tools include product technical bulletins and our extensive FAQ section. You can also contact our technical support team.

All Technical Data

Soma Foama™ 25Ecoflex™ 5
Product Type
  • Silicone Expanding Foams - Platinum Cure
  • Silicone Rubber - Platinum Cure
Mixed Viscosity10,000 cps13,000 cps
Mix Ratio By Volume1A:1B1A:1B
Mix Ratio By Weight1A:1B1A:1B
Pot Life90 seconds1 minute
Handling Time20 minutes
Cure Time1 hour5 minutes
Shore A Hardness5
Expansion (approximate)2-3 times
Foam Density25 lb/ft³
Specific Gravity0.40 g/cc1.07 g/cc
Specific Volume69 cu. in./lb.25.8 cu. in./lb.
ColorWhiteTranslucent
Die B Tear Strength75 pli
Tensile Strength350 psi
Elongation @ Break1,000 %
100% Modulus15 psi
Shrinkage<.001 in. / in.
Useful Temperature (min)-65 °F
Useful Temperature (max)450 °F

Product Description

Soma Foama™ 25

Soma Foama™ is a soft, two-component platinum silicone flexible foam that is versatile and easy to use. Soma Foama™ 25 is a higher density foam vs. original Soma Foama™ 15 which expands 2-3 times its original volume and develops a uniform 25 lb./cu. ft. cell structure (400 kg/m³). Vibrant colors can be achieved by adding Silc-Pig™ silicone color pigments. Cured foam is high heat resistance (will resist up to 350°F/176°C), water resistant, UV resistant and resists oxidation and ozone degradation.

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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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