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PoYo™ Putty

PoYo™ Putty vs. EZ-Spray® Silicone 22 vs. EZ-Spray® FoamEZ-Spray® Silicone 22 versus EZ-Spray® Foam

Mix & Apply-By-Hand Mold Putty

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Key Differences

Product Type
  • Silicone Rubber - Platinum Cure
  • Mix and Pour Expanding Foams
  • Silicone Rubber - Tin Cure
Mixed Viscosity11,000 cps400 cpsPutty
Pot Life5 minutes13 seconds5 minutes
Cure Time45 minutes10 minutes30 minutes
Shore A Hardness2240
Specific Gravity1.08 g/cc0.128 g/cc1.30 g/cc
ColorTranslucent GreenTanLight Pink
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 22EZ-Spray® FoamPoYo™ Putty
Product Type
  • Silicone Rubber - Platinum Cure
  • Mix and Pour Expanding Foams
  • Silicone Rubber - Tin Cure
Mixed Viscosity11,000 cps400 cpsPutty
Mix Ratio By Volume1A:1B1A:1B20A:1B
Mix Ratio By Weight100A:6B
Pot Life5 minutes13 seconds5 minutes
Tack Free Time2 minutes
Cure Time45 minutes10 minutes30 minutes
Shore A Hardness2240
Expansion (approximate)7 times
Specific Gravity1.08 g/cc0.128 g/cc1.30 g/cc
Specific Volume25.6 cu. in./lb.21.31 cu. in./lb.
ColorTranslucent GreenTanLight Pink
Die B Tear Strength102 pli85 pli
Tensile Strength490 psi450 psi
Elongation @ Break450 %250 %
100% Modulus49 psi
Shrinkage<.001 in. / in.0.003 in. / in.
Useful Temperature (min)-65 °F-65 °F
Useful Temperature (max)500 °F400 °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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EZ-Spray® Foam

EZ~Spray® Foam is a polyurethane foam compound that can be conveniently sprayed using Smooth-On’s EZ~Spray® Junior System. Foam cures quickly to strong, lightweight and impact resistant 8 lb. rigid foam that can be used for a variety of applications including making lightweight castings. Foam can also be sprayed over certain rubber mold configurations as a mother mold material. For more information, refer to SmoothOn’s EZ~Spray® Junior manual and video.

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PoYo™ Putty

PoYo™ Putty 40 is a two-component mold making silicones (tin catalyst) that can be mixed and applied “on site” – directly to almost any model. PoYo™ Putty will hold any vertical surface and capture even the finest detail - perfect for making strong rubber molds that can be used within minutes. 

 PoYo™ Putty has been used to make molds of valuable antiques and archeological models and can be used to make fast molds of sculpture, prototypes, candles, picture frames, coins, etc. You can cast wax, gypsum and a variety of resins into PoYo™ Putty molds.

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Select a Material from a Category Below

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 ›