Free Form™ AIR HT

FreeFormAirHTpint ⓘ 66C58343-F3B2-CE43-A45C-A64B910006CF
Epoxy Clay

Lightweight epoxy putty with high temperature resistance.

  • Resists up to 204°C
  • Mix ratio 2A:1B
  • Pot life 90 min to 3 hrs
  • Full cure in 16 hrs
  • Can be sanded, shaped, machined
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Warning

H315 - Causes skin irritation.
H317 - May cause an allergic skin reaction.
H319 - Causes serious eye irritation.
€ 64.02

(€ 52.91 without 21% VAT)

In stock

Description

This lightweight epoxy putty is designed for high temperature resistance, enduring up to 149°C when cured at room temperature and 204°C with heat post-curing. It features a low-odor, low-shrinkage formula and is mixed by hand with a 2A:1B ratio by volume or weight.

It provides a long working time and cures overnight at room temperature into a hard, rigid epoxy with properties similar to modeling board. Once cured, it can be sanded, shaped, drilled, tapped, and CNC machined or routered.

Applications

  • Epoxy Laminating: Use between layers of EpoxAmite™ HT Laminating Epoxy and fiberglass, carbon, or other fibers to create lightweight composite parts, reducing the need for multiple liquid epoxy layers.
  • Epoxy Tooling: Suitable for filleting, jig, and fixture construction. It serves as a lightweight adhesive, bonding to itself and surfaces like wood, stone, and EpoxAcoat™ HT surface coat epoxy.

Pot Life and Curing Times

  • Thickness 3.81 cm: Pot life is 90 minutes, handling time is 3 hours, full cure in 16 hours.
  • Thickness 0.95 cm: Pot life is 2.5 hours, handling time is 5.5 hours, full cure in 16 hours.
  • Thickness 0.32 cm: Pot life is 3 hours, handling time is 6.5 hours, full cure in 16 hours.

Working Tip: The material is mass-sensitive. Mixing larger quantities reduces working time. To extend pot life, flatten the putty with a rolling pin to reduce mass concentration.

Instructions

Mix at a 2A:1B ratio by volume or weight until uniform. Apply to clean, dry surfaces or press into molds. Working time varies by thickness (~90 min–3 hrs); larger masses cure faster. Shape as needed and press firmly for adhesion. Do not disturb during cure. Handling time is approximately 3–6.5 hours; full cure is around 16 hours. For longer working time, spread material thin. Once cured, it can be sanded, drilled, or machined. Wear gloves and ensure ventilation.

Specifications

Color Grey
Mixed Viscocity Dough
Cure Time 16 hours
Pot Life 150 minutes
Specific Volume 54.31 cu. in./lb.
Specific Gravity 0.51 g/cc
Mix Ratio By Weight 2A:1B
Mix Ratio By Volume 2A:1B
Shore D Hardness 55
Heat Deflection Temp 300 °F
Heat Deflection With Post Cure 400 °F
Available in Epoxy Clay
Product Color Color Mixed Viscocity Specific Volume Bouyant Force Specific Gravity Mix Ratio By Weight Mix Ratio By Volume Shore D Hardness Heat Deflection Temp Mixed Viscosity Cure Time Pot Life Heat Deflection With Post Cure
Free Form™ AIR Grey Grey Dough 61.6 cu. in./lb. 10.4 lb/ft³ 0.45 g/cc 1A:1B 1A:1B 50 140 °F - - - -
Free Form™ AIR FAST Grey Grey Dough 61.6 cu. in./lb. 10.4 lb/ft³ 0.45 g/cc 1A:1B 1A:1B 60 145 °F - - - -
Free Form Air Fire Safe - Grey - 34.6 cu. in./lb. - 0.8 g/cc - 1A:1B 73 140 °F Dough - - -
Free Form™ AIR HT Grey Grey Dough 54.31 cu. in./lb. - 0.51 g/cc 2A:1B 2A:1B 55 300 °F - 16 h. 150 min. 400 °F
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