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PC-3®

Soma Foama® 25 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
  • Mix and Pour Expanding Foams
  • Skin Safe FX Materials
Mixed Viscosity11,000 cpsPaste10,000 cps
Pot Life5 minutes20 minutes90 seconds
Cure Time45 minutes24 hours1 hour
Barcol 935 Hardness75
Shore A Hardness22
Specific Volume25.6 cu. in./lb.20 cu. in./lb.69 cu. in./lb.
ColorTranslucent GreenBlackWhite
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®Soma Foama® 25
Product Type
  • Silicone Rubber - Platinum Cure
  • Adhesives
  • Mix and Pour Expanding Foams
  • Skin Safe FX Materials
Mixed Viscosity11,000 cpsPaste10,000 cps
Mix Ratio By Volume1A:1B1A:1B1A:1B
Mix Ratio By Weight1A:1B1A:1B
Pot Life5 minutes20 minutes90 seconds
Handling Time20 minutes
Cure Time45 minutes24 hours1 hour
Barcol 935 Hardness75
Shore A Hardness22
Expansion (approximate)2-3 times
Foam Density25 lb/ft³
Specific Gravity1.08 g/cc1.4 g/cc0.40 g/cc
Specific Volume25.6 cu. in./lb.20 cu. in./lb.69 cu. in./lb.
ColorTranslucent GreenBlackWhite
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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Soma Foama® 25

Soma Foama® is a soft, two-component platinum silicone flexible foam that is versatile and easy to use. Soma Foama® 25 is a higher density foam vs. original Soma Foama® 15 which expands 2-3 times its original volume and develops a uniform 25 lb./cu. ft. cell structure (400 kg/m³). Vibrant colors can be achieved by adding Silc-Pig® silicone color pigments. Cured foam is high heat resistance (will resist up to 350°F/176°C), water resistant, UV resistant and resists oxidation and ozone degradation.

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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 ›