Free Form Air HT Epoxy Putty

SKU: 801621

Size: Quart Kit
Sale price$52.78

unit(s) in Stock.


unit(s) in Stock.


unit(s) in Stock.

* Price and availability may vary.
* If unit(s) in stock is 0, item is currently unavailable or special order.


Unit Size Net Weight
Quart Kit 1.2 lb
Gallon Kit 5.1 lb
Five Gallon Kit 51 lb



Free Form Air HT is a low density, lightweight epoxy putty that offers high temperature resistance to 300F/149C when cured at room temperature and 400F/204C 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. Size: Quart Kit 1.2Lb
Technical Properties
Mix Ratio by Weight 2A:1B
Mix Ratio by Volume 2A:1B
Pot Life Thickness Dependent
Cure Time 16 hours
Color Grey
Shore Hardness 55D
Mixed Viscosity Dough
Specific Volume 54.31 cu. in./lb.
Specific Gravity 0.51g/cc
Heat Deflection Temp 300¼F400¼F (with post cure)


Epoxy Laminating; Laminate Free Form Air HT putty in between layers of EpoxAmite HT Laminating Epoxy and fiberglass cloth, carbon or other fiber for making lightweight composite parts. Eliminates the need to make multiple layers of laminating with liquid epoxy; saves time and labor.
Epoxy Tooling ApplicationsUse as a filleting material. Also good for jig and fixture construction.
Lightweight AdhesiveFree Form Air HT will bond to itself and a variety of surfaces including wood, stone and EpoxAcoat HT surface coat epoxy.
Pot Life / Working TimeThis material is mass sensitive. The more material you mix at one time, the less time you have to work with it. Working tip; If mixing a large quantity, flatten putty with a rolling pin to reduce mass concentration and extend pot life.
  • Thickness ; 1.5 inch (3.81 cm) - pot life is 90 minutes, handling time is 3 hours, full cure in 16 hours.
  • Thickness ; 3/8 inch (0.95 cm) - pot life is 2.5 hours, handling time is 5.5 hours, full cure in 16 hours.
  • Thickness ; 1/8 inch (0.32 cm) - pot life is 3 hours, handling time is 6.5 hours, full cure in 16 hours.
Special Order Items
The products listed below are currently SPECIAL ORDER items and require pre order.
Lead times may vary - For more information please contact our staff.

801623 - Free Form Air HT Epoxy Putty - Five Gallon Kit

Payment & Security

Mastercard PayPal Visa

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.

You may also like