What Temperature Does Epoxy Cure?

We know that most epoxies perform well or, at least reach a higher percentage of their potential physical properties, at temperatures of 60°F and above.

Some resin/hardener combinations are formulated to cure in temperatures as low as 35°F.

Will epoxy resin cure in cold weather?

Because the epoxy is an exothermic material, a thick layer will hold more heat and therefore cure faster than a thin layer that dissipates the heat. In cold weather (below 50 degrees) you will notice the curing of ART’s Epoxy System begin to slow. The colder it gets the slower it takes to fully harden.

Does epoxy need heat to cure?

Typically, one-component epoxy systems require a heat cure.” Engineers use heat to speed up the adhesive curing process. “Most two-component adhesives will cure at room temperature, but many of these will have much faster cure times with the addition of heat,” notes Paul Brown, technical service engineer at Lord Corp.

What is the fastest way to cure epoxy?

Just Use Heat

  • It is actually possible to make epoxy resin dry faster, just by using heat.
  • Increase the temperature to 75-85ºF / 24-30ºC in the room where your piece is curing.
  • The resin reaches 95% of its full cure within 24 hours, and 100% of its cure within 72 hours.

What happens if epoxy is too cold?

Product viscosity: In cooler temperatures, epoxy does not flow as smoothly. If your product or surface is too cold, a self-leveling epoxy may not level properly and leave you with divets or fish eyes.