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Smooth-Cast® 310

Smooth-Cast® 310 vs. EZ-Spray® Silicone 22EZ-Spray® Silicone 22

Bright White, Ultra Low Viscosity Liquid Plastics

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Key Differences

Product Type
  • Silicone Rubber - Platinum Cure
  • Urethane Resins
Mixed Viscosity11,000 cps80 cps
Pot Life5 minutes20 minutes
Cure Time45 minutes4 hours
Shore D Hardness70
Shore A Hardness22
ColorTranslucent GreenWhite
Tensile Strength490 psi3,000 psi
Elongation @ Break450 %7.5 %
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 22Smooth-Cast® 310
Product Type
  • Silicone Rubber - Platinum Cure
  • Urethane Resins
Mixed Viscosity11,000 cps80 cps
Mix Ratio By Volume1A:1B1A:1B
Mix Ratio By Weight100A:90B
Pot Life5 minutes20 minutes
Cure Time45 minutes4 hours
Shore D Hardness70
Shore A Hardness22
Specific Gravity1.08 g/cc1.05 g/cc
Specific Volume25.6 cu. in./lb.26.4 cu. in./lb.
ColorTranslucent GreenWhite
Die B Tear Strength102 pli
Tensile Strength490 psi3,000 psi
Tensile Modulus134,000 psi
Elongation @ Break450 %7.5 %
100% Modulus49 psi
Compressive Strength3,800 psi
Compressive Modulus44,900 psi
Flexural Strength4,000 psi
Flexural Modulus118,000 psi
Shrinkage<.001 in. / in.0.0065 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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Smooth-Cast® 310

The Smooth-Cast® 300 Series of liquid plastics are ultra-low viscosity casting resins that yield castings that are bright white and virtually bubble free. Vacuum degassing is not necessary. They offer the convenience of a 1A:1B by volume or 100A:90B by weight mix ratio. The differences between them are pot life and demold time.

These resins readily accept fillers (such as URE-FIL® 3 from Smooth-On) and can be colored with SO-Strong® or Ignite® color tints (Smooth-Cast® 325 series accepts pigments better than the Smooth Cast® 300 series). Fully cured castings are tough, durable, machinable and paintable. They resist moisture and mild solvents. Applications for Smooth-Cast® 300 Series Liquid Plastics include reproducing small to medium size sculptures, making prototype models, special effect props and decorative jewelry.

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