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Key Differences

Product Type
  • Silicone Rubber - Platinum Cure
  • Epoxy Casting and Laminating Resins
Mixed Viscosity11,000 cpsPaste
Pot Life5 minutes40 minutes
Cure Time45 minutes16 hours
Shore D Hardness80
Shore A Hardness22
ColorTranslucent GreenOff-White
Elongation @ Break450 %0.83 %
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 22Plasti-Paste™ EPOXY
Product Type
  • Silicone Rubber - Platinum Cure
  • Epoxy Casting and Laminating Resins
Mixed Viscosity11,000 cpsPaste
Mix Ratio By Volume1A:1B2A:1B
Mix Ratio By Weight2A:1B
Pot Life5 minutes40 minutes
Thin Film Recoat Time60 minutes
Cure Time45 minutes16 hours
Shore D Hardness80
Shore A Hardness22
Specific Gravity1.08 g/cc1.0 g/cc
Specific Volume25.6 cu. in./lb.27.73 cu. in./lb.
ColorTranslucent GreenOff-White
Die B Tear Strength102 pli
Tensile Strength490 psi
Tensile Modulus470,000 psi
Ultimate Tensile3,320 psi
Elongation @ Break450 %0.83 %
100% Modulus49 psi
Compressive Strength7,700 psi
Compressive Modulus138,000 psi
Flexural Strength9,186 psi
Flexural Modulus2,273,000 psi
Shrinkage<.001 in. / in.0.001 in. / in.
Heat Deflection Temp160 °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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Plasti-Paste™ EPOXY

Plasti-Paste™ EPOXY is an epoxy-based version of Smooth-On’s popular urethane Plasti-Paste™ products. It is a two component, fiber-filled epoxy designed for vertical surface application. Part A is a paste and Part B is a liquid. Mix ratio is 2A: 1B by volume or weight. Pot life is 40 minutes and cure time is 16 hours at room temperature depending on mass. Applying heat can reduce cure time. Mixed material holds a vertical surface without sagging and cures very rigid and strong.

Liquid material can be colored with UVO™ colorants and cured epoxy can be sanded, machined and painted with acrylic enamel paints. This plastic can used as a support shell or mother mold material to reinforce rubber molds during casting. It can also be used for creating themed environments, creating art or special effects. This epoxy is also a powerful adhesive and can be used as a repair material for a variety of industrial applications.

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Silicone Rubber - Tin Cure ›

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Epoxy Casting and Laminating Resins ›

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