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PC-3®

EZ-Spray® Silicone 22 vs. PC-3® vs. Epsilon™ PROEZ-Spray® Silicone 22

Laboratory Tabletop Epoxy Adhesive

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Epsilon™ PRO

EZ-Spray® Silicone 22 vs. PC-3® vs. Epsilon™ PROEZ-Spray® Silicone 22 versus PC-3®

High Performance Impact Resistant EPS Foam Coating

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Key Differences

Product Type
  • Silicone Rubber - Platinum Cure
  • Adhesives
  • Epoxy and Urethane Coatings
Mixed Viscosity11,000 cpsPaste4,000 cps
Pot Life5 minutes20 minutes22 minutes
Cure Time45 minutes24 hours16 hours
Barcol 935 Hardness75
Shore D Hardness65
Shore A Hardness22
Specific Volume25.6 cu. in./lb.20 cu. in./lb.25.0 cu. in./lb.
ColorTranslucent GreenBlackClear Amber
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®Epsilon™ PRO
Product Type
  • Silicone Rubber - Platinum Cure
  • Adhesives
  • Epoxy and Urethane Coatings
Mixed Viscosity11,000 cpsPaste4,000 cps
Mix Ratio By Volume1A:1B1A:1B2A:1B
Mix Ratio By Weight1A:1B100A:44B
Pot Life5 minutes20 minutes22 minutes
Thin Film Working Time35 minutes
Thin Film Recoat Time3 hours
Cure Time45 minutes24 hours16 hours
Barcol 935 Hardness75
Shore D Hardness65
Shore A Hardness22
Specific Gravity1.08 g/cc1.4 g/cc1.11 g/cc
Specific Volume25.6 cu. in./lb.20 cu. in./lb.25.0 cu. in./lb.
ColorTranslucent GreenBlackClear Amber
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.
Useful Temperature (min)-65 °F
Useful Temperature (max)500 °F
Compressive Yield Strength5,000 psi

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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Epsilon™ PRO

Epsilon™ PRO is a thixotropic epoxy coating that self-thickens for brushing onto a variety of surfaces.  Compared to original Epsilon™, Epsilon™ PRO offers a longer working time and cured epoxy is semi-rigid, offering better impact resistance.  Mix ratio for Epsilon™ PRO is 2A:1B by volume (100A:44B by weight).  A gram scale is not needed to use this product.

Applied in thin layers, mixed material holds a vertical surface without sagging or slumping. Material wets out uniformly over different surfaces.  Pot life is 22 minutes, with a re-coat time of 3 hours.  All layers should be allowed to cure for 16 hours at 73° F / 23° C and can be accelerated with mild heat.  Epsilon™ PRO is clear and can be easily colored using Ignite™ or UVO™ colorants.  Cured coating has a gloss finish and can be sanded, primed and painted.

Applications: Epsilon™ PRO is suitable for use as a protective, impact resistant coating for EPS or polyurethane foam. It can also be applied to plaster, concrete, wood and fabrics. This product is not sensitive to moisture / humidity and contains no VOC’s. 

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Silicone Rubber - Tin Cure ›

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Adhesives ›

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