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PC-3®

Free Form™ AIR vs. EZ-Spray® Silicone 22 vs. PC-3®EZ-Spray® Silicone 22

Laboratory Tabletop Epoxy Adhesive

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Key Differences

Product Type
  • Silicone Rubber - Platinum Cure
  • Adhesives
  • Epoxy Putties
Mixed Viscosity11,000 cpsPasteDough
Barcol 935 Hardness75
Shore D Hardness50
Shore A Hardness22
Specific Volume25.6 cu. in./lb.20 cu. in./lb.61.6 cu. in./lb.
ColorTranslucent GreenBlackGrey
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 22PC-3®Free Form™ AIR
Product Type
  • Silicone Rubber - Platinum Cure
  • Adhesives
  • Epoxy Putties
Mixed Viscosity11,000 cpsPasteDough
Mix Ratio By Volume1A:1B1A:1B1A:1B
Mix Ratio By Weight1A:1B
Pot Life5 minutes20 minutes
Cure Time45 minutes24 hours
Barcol 935 Hardness75
Shore D Hardness50
Shore A Hardness22
Specific Gravity1.08 g/cc1.4 g/cc0.45 g/cc
Specific Volume25.6 cu. in./lb.20 cu. in./lb.61.6 cu. in./lb.
ColorTranslucent GreenBlackGrey
Die B Tear Strength102 pli
Tensile Strength490 psi3,000 psi
Elongation @ Break450 %
100% Modulus49 psi
Flexural Strength5,000 psi
Shrinkage<.001 in. / in.0.003 in. / in.
Heat Deflection Temp140 °F
Useful Temperature (min)-65 °F
Useful Temperature (max)500 °F
Compressive Yield Strength5,000 psi
Buoyant Force10.4 lb/ft³

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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PC-3®

Smooth-On PC-3® Laboratory Table Top Cement is a two-component, black epoxy resin compound designed to join, bond and caulk sections of laboratory counters and tables. This epoxy resin cement is heavily filled and will adhere to vertical surfaces without sagging. It cures at room temperature with extremely low shrinkage.

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Free Form™ AIR

Free Form™AIR is an extremely lightweight epoxy putty suitable for an infinite variety of industrial and art-related applications. This is a low-odor, low shrinkage putty that is unique, inexpensive and easy to use. Free Form™AIR is mixed by hand with a 1A:1B by volume mix ratio. It offers a long working time and cures overnight at room temperature to a hard, rigid epoxy that is very strong. Cured Free Form™AIR is so lightweight, it will float in water. It can be sanded, shaped, and drilled. It will readily accept any paint. Free Form can also be color pigmented with UVO™ or Ignite™ colorants.

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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 ›