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SORTA-Clear™ 40

SORTA-Clear™ 40 vs. EZ-Spray® Silicone 22 vs. EZ-Spray® FoamEZ-Spray® Silicone 22 versus EZ-Spray® Foam

Addition Cure Silicone Rubber Compounds

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Key Differences

Product Type
  • Silicone Rubber - Platinum Cure
  • Mix and Pour Expanding Foams
  • Silicone Rubber - Platinum Cure
Mixed Viscosity11,000 cps400 cps35,000 cps
Mix Ratio By Volume1A:1B1A:1BN/A (gram scale required)
Pot Life5 minutes13 seconds60 minutes
Cure Time45 minutes10 minutes16 hours
Shore A Hardness2240
Specific Gravity1.08 g/cc0.128 g/cc1.08 g/cc
ColorTranslucent GreenTanWater Clear Translucent
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

EZ-Spray® Silicone 22EZ-Spray® FoamSORTA-Clear™ 40
Product Type
  • Silicone Rubber - Platinum Cure
  • Mix and Pour Expanding Foams
  • Silicone Rubber - Platinum Cure
Mixed Viscosity11,000 cps400 cps35,000 cps
Mix Ratio By Volume1A:1B1A:1B
Mix Ratio By Weight100A:10B
Pot Life5 minutes13 seconds60 minutes
Tack Free Time2 minutes
Cure Time45 minutes10 minutes16 hours
Shore A Hardness2240
Expansion (approximate)7 times
Specific Gravity1.08 g/cc0.128 g/cc1.08 g/cc
Specific Volume25.6 cu. in./lb.25.6 cu. in./lb.
ColorTranslucent GreenTanWater Clear Translucent
Die B Tear Strength102 pli120 pli
Tensile Strength490 psi800 psi
Elongation @ Break450 %400 %
100% Modulus49 psi90 psi
Shrinkage<.001 in. / in.<.001 in. / in.
Useful Temperature (min)-65 °F-65 °F
Useful Temperature (max)500 °F450 °F

Product Description

EZ-Spray® Silicone 22

EZ~Spray® Silicone 22 are sprayable silicones which cure quickly to soft rubbers with high elongation and tear strength. Liquid silicone is sprayed through the EZ~Spray® Junior Cartridge System which is an economical alternative to expensive spray equipment. After a suitable thickness is attained, EZ~Spray® Silicone 22 cures in about 45 minutes. EZ~Spray® Silicone cures with negligible shrinkage to strong, durable silicone rubbers good for production casting of polyester, epoxy or urethane resins, gypsum, concrete and other materials.

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EZ-Spray® Foam

EZ~Spray® Foam is a polyurethane foam compound that can be conveniently sprayed using Smooth-On’s EZ~Spray® Junior System. Foam cures quickly to strong, lightweight and impact resistant 8 lb. rigid foam that can be used for a variety of applications including making lightweight castings. Foam can also be sprayed over certain rubber mold configurations as a mother mold material. For more information, refer to SmoothOn’s EZ~Spray® Junior manual and video.

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SORTA-Clear™ 40

SORTA-Clear™ Series rubbers are premium water white translucent silicone rubbers (platinum catalyst) which cure at room temperature with negligible shrinkage. This product requires a gram scale for measuring parts A + B. Sorta Clear 40 comes in Shore 40A hardness and features high tensile and tear strength.

SORTA-Clear™ silicones are ideal for making prototype, jewelry or other molds of any configuration where model visibility is important (i.e. extracting a model from the mold via cutting). Materials such as urethane, epoxy or polyester resins can then be cast into SORTA-Clear™ silicone without application of a release agent. Other materials such as wax and low melt metal alloys can also be cast into SORTA-Clear™. SORTA-Clear™ can be pigmented with SILC Pig™ silicone pigments.

SORTA Clear™ 40 silicone rubber is FOOD SAFE and can be used for culinary applications including casting chocolate and other confections.

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