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Key Differences

Product Type
  • Silicone Rubber - Platinum Cure
  • Mix and Pour Expanding Foams
  • Epoxy and Urethane Coatings
Mixed Viscosity11,000 cps400 cpsVariable
Mix Ratio By Volume1A:1B1A:1BN/A (gram scale required)
Pot Life5 minutes13 seconds15 minutes
Cure Time45 minutes10 minutes16 hours
Shore D Hardness75
Shore A Hardness22
Specific Gravity1.08 g/cc0.128 g/cc1.16 g/cc
ColorTranslucent GreenTanBeige
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® FoamEPSILON™ + 101 Hardener
Product Type
  • Silicone Rubber - Platinum Cure
  • Mix and Pour Expanding Foams
  • Epoxy and Urethane Coatings
Mixed Viscosity11,000 cps400 cpsVariable
Mix Ratio By Volume1A:1B1A:1B
Mix Ratio By Weight100A:20B
Pot Life5 minutes13 seconds15 minutes
Thin Film Working Time45 minutes
Thin Film Recoat Time60 minutes
Tack Free Time2 minutes
Cure Time45 minutes10 minutes16 hours
Shore D Hardness75
Shore A Hardness22
Expansion (approximate)7 times
Specific Gravity1.08 g/cc0.128 g/cc1.16 g/cc
Specific Volume25.6 cu. in./lb.23.9 cu. in./lb.
ColorTranslucent GreenTanBeige
Die B Tear Strength102 pli
Tensile Strength490 psi
Elongation @ Break450 %
100% Modulus49 psi
Shrinkage<.001 in. / in.
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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EPSILON™ + 101 Hardener

EPSILON™ is a thixotropic epoxy coating that self thickens for brushing onto a variety of surfaces without sagging. Parts A and B mix together easily, and the mixture wets out uniformly. This product is not sensitive to moisture or humidity. EPSILON™ cures at room temperature to an impact resistant plastic which exhibits good compressive and flexural strength.

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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 ›