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Free Form™ AIR HT

EZ-Spray™ Silicone 22 vs. Free Form™ AIR HT

High Temperature Epoxy Dough

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Key Differences

Product Type
  • Epoxy Putties
  • Silicone Rubber - Platinum Cure
Mixed ViscosityDough11,000 cps
Pot Life150 minutes5 minutes
Cure Time16 hours45 minutes
Shore D Hardness55
Shore A Hardness22
Specific Volume54.31 cu. in./lb.25.6 cu. in./lb.
ColorGreyTranslucent Green
Disclaimer
Although we do our best to ensure accuracy, Smooth-On offers no warranties, promises, and/or representations of any kind, either expressed or implied, as to the accuracy, completeness, or reliability of the information contained on this Compare Tool, nor suitability of the information contained herein to your particular circumstances. Smooth-On assumes no liability for losses or damages of whatever nature (direct, indirect, consequential or other) associated with your use, or inability to use, the Compare Tool, or from your use (or failure to use) the information contained herein. Other useful tools include product technical bulletins and our extensive FAQ section. You can also contact our technical support team.

All Technical Data

Free Form™ AIR HTEZ-Spray™ Silicone 22
Product Type
  • Epoxy Putties
  • Silicone Rubber - Platinum Cure
Mixed ViscosityDough11,000 cps
Mix Ratio By Volume2A:1B1A:1B
Mix Ratio By Weight2A:1B
Pot Life150 minutes5 minutes
Cure Time16 hours45 minutes
Shore D Hardness55
Shore A Hardness22
Specific Gravity0.51 g/cc1.08 g/cc
Specific Volume54.31 cu. in./lb.25.6 cu. in./lb.
ColorGreyTranslucent Green
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

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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EZ-Spray™ Silicone 22

EZ~Spray™ Silicone 22 is a sprayable silicone which cure quickly to soft rubbers with high elongation and tear strength. 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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