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Crystal Clear™ 202

Crystal Clear™ 202 vs. EZ-Spray® Silicone 22 vs. EZ-Spray® FoamEZ-Spray® Silicone 22 versus EZ-Spray® Foam

Clear Urethane Casting Resin

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Key Differences

Product Type
  • Silicone Rubber - Platinum Cure
  • Mix and Pour Expanding Foams
  • Urethane Resins
Mixed Viscosity11,000 cps400 cps600 cps
Mix Ratio By Volume1A:1B1A:1BN/A (gram scale required)
Pot Life5 minutes13 seconds9 minutes
Cure Time45 minutes10 minutes90 minutes
Shore D Hardness80
Shore A Hardness22
Specific Gravity1.08 g/cc0.128 g/cc1.036 g/cc
ColorTranslucent GreenTanClear
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® FoamCrystal Clear™ 202
Product Type
  • Silicone Rubber - Platinum Cure
  • Mix and Pour Expanding Foams
  • Urethane Resins
Mixed Viscosity11,000 cps400 cps600 cps
Mix Ratio By Volume1A:1B1A:1B
Mix Ratio By Weight100A:90B
Pot Life5 minutes13 seconds9 minutes
Tack Free Time2 minutes
Cure Time45 minutes10 minutes90 minutes
Shore D Hardness80
Shore A Hardness22
Expansion (approximate)7 times
Specific Gravity1.08 g/cc0.128 g/cc1.036 g/cc
Specific Volume25.6 cu. in./lb.26.7 cu. in./lb.
ColorTranslucent GreenTanClear
Die B Tear Strength102 pli
Tensile Strength490 psi3,500 psi
Elongation @ Break450 %10 %
100% Modulus49 psi
Compressive Strength4,200 psi
Compressive Modulus44,000 psi
Flexural Strength5,390 psi
Flexural Modulus183,200 psi
Shrinkage<.001 in. / in.0.0125 in. / in.
Heat Deflection Temp120 °F
Useful Temperature (min)-65 °F
Useful Temperature (max)500 °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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Crystal Clear™ 202

Crystal Clear 202 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 ›

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 ›