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VytaFlex™ 45

EZ-Spray® Silicone 22 vs. VytaFlex™ 45EZ-Spray® Silicone 22

Urethane Mold Rubber For Perfect Concrete Castings

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Key Differences

Product Type
  • Silicone Rubber - Platinum Cure
  • Urethane Rubber
Mixed Viscosity11,000 cps2,000 cps
Pot Life5 minutes30 minutes
Cure Time45 minutes16 hours
Shore A Hardness2245
ColorTranslucent GreenOff White
Tensile Strength490 psi886 psi
Elongation @ Break450 %900 %
100% Modulus49 psi116 psi
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 22VytaFlex™ 45
Product Type
  • Silicone Rubber - Platinum Cure
  • Urethane Rubber
Mixed Viscosity11,000 cps2,000 cps
Mix Ratio By Volume1A:1B1A:1B
Mix Ratio By Weight1A:1B
Pot Life5 minutes30 minutes
Cure Time45 minutes16 hours
Shore A Hardness2245
Specific Gravity1.08 g/cc1.04 g/cc
Specific Volume25.6 cu. in./lb.26.4 cu. in./lb.
ColorTranslucent GreenOff White
Die B Tear Strength102 pli
Die C Tear Strength100 pli
Tensile Strength490 psi886 psi
Elongation @ Break450 %900 %
100% Modulus49 psi116 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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VytaFlex™ 45

Using Smooth-On’s exclusive “V-Polymer™” technology, VytaFlex™ urethane rubbers offer superior physical and performance properties for casting concrete. VytaFlex™ urethanes are available in 10A, 20A, 30A, 40A, 45A, 50A and 60A Shore hardness’s and feature convenient one-to-one by volume mix ratios.

Vacuum degassing is not necessary and VytaFlex™ rubbers cure with negligible shrinkage to a durable rubber that will last in production.

VytaFlex™ mold rubbers work especially well for casting pigmented / colored concrete. Molds made with VytaFlex™ Series urethanes will render accurate and uniform colored castings.

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