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Free Form™ AIR HT

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

High Temperature Epoxy Dough

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Key Differences

Product Type
  • Silicone Rubber - Platinum Cure
  • Epoxy Putties
Mixed Viscosity11,000 cpsDough
Pot Life5 minutes150 minutes
Cure Time45 minutes16 hours
Shore D Hardness55
Shore A Hardness22
Specific Volume25.6 cu. in./lb.54.31 cu. in./lb.
ColorTranslucent GreenGrey
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 22Free Form™ AIR HT
Product Type
  • Silicone Rubber - Platinum Cure
  • Epoxy Putties
Mixed Viscosity11,000 cpsDough
Mix Ratio By Volume1A:1B2A:1B
Mix Ratio By Weight2A:1B
Pot Life5 minutes150 minutes
Cure Time45 minutes16 hours
Shore D Hardness55
Shore A Hardness22
Specific Gravity1.08 g/cc0.51 g/cc
Specific Volume25.6 cu. in./lb.54.31 cu. in./lb.
ColorTranslucent GreenGrey
Die B Tear Strength102 pli
Tensile Strength490 psi
Elongation @ Break450 %
100% Modulus49 psi
Shrinkage<.001 in. / in.
Heat Deflection Temp300 °F
Useful Temperature (min)-65 °F
Useful Temperature (max)500 °F
Heat Deflection With Post Cure400 °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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Free Form™ AIR HT

Free Form™ AIR HT is a low density, lightweight epoxy putty that offers high temperature resistance to 300°F/149°C when cured at room temperature and 400°F/204°C when heat post cured. This is a low-odor, low shrinkage formula that is easy to use. Free Form™ AIR HT is mixed by hand with a 2A:1B by volume or weight mix ratio. It offers a long working time and cures overnight at room temperature to a hard, rigid epoxy that is very strong with modeling board-like properties. It can be sanded, shaped, drilled, tapped and CNC machined/routered.

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