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EZ-Spray® Silicone 35

EZ-Spray® Silicone 22 vs. EZ-Spray® Silicone 35EZ-Spray® Silicone 22

Sprayable Silicone Rubber Compound

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Key Differences

Mixed Viscosity11,000 cpsSprayable
Pot Life5 minutes1.5 minutes
Cure Time45 minutes1 hour
Shore A Hardness2235
ColorTranslucent GreenPurple
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® Silicone 35
Product Type
  • Silicone Rubber - Platinum Cure
  • Silicone Rubber - Platinum Cure
Mixed Viscosity11,000 cpsSprayable
Mix Ratio By Volume1A:1B1A:1B
Pot Life5 minutes1.5 minutes
Cure Time45 minutes1 hour
Shore A Hardness2235
Specific Gravity1.08 g/cc1.15 g/cc
Specific Volume25.6 cu. in./lb.24.1 cu. in./lb.
ColorTranslucent GreenPurple
Die B Tear Strength102 pli92 pli
Tensile Strength490 psi490 psi
Elongation @ Break450 %415 %
100% Modulus49 psi
Shrinkage<.001 in. / in.<.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® Silicone 35

EZ~Spray® 35 is a platinum cure silicone rubber developed specifically for spraying through the EZ~Spray® Junior Cartridge System. With no or minimal surface preparation, EZ~Spray® 35 can be sprayed onto vertical surfaces for making fast rubber molds of large surface areas. After a suitable thickness is attained, EZ~Spray® 35 cures in 1 hour with negligible shrinkage to a durable mold rubber good for production casting resins, foams, concrete, plaster and other materials. Application of a support shell is achieved by spraying Smooth-On’s EZ~Spray® Plastic over the rubber mold after it has fully cured. Read the EZ~Spray® Junior manual prior to spraying.

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