Epoxy Cure Time: How Long Does Epoxy Take To Cure

Nick Shushan
By Nick Shusan , Epoxy Expert and the CEO of NYC Epoxy Flooring.

June 14, 2022

Epoxy cure time is significant because sanding an epoxy piece before the curing process is completely dangerous. The usual cure time for epoxy is seven days. However, it differs because epoxy cure time is dependent on the type and brand of epoxy resin used. In some cases, it may take up to 72 hours for the epoxy cure to be complete.

Even though epoxy cures in seven days, your floor may be ready to walk on in as little as 12 hours and ready for moderate use in as little as 24 hours. Carefully read the manufacturer’s instructions to understand how long the specific type will take to dry.

Continue reading to see the quickest method of curing epoxy resin, how the epoxy brand affects its cure time, and the things that hinder a faster epoxy cure. Also, you will see how to know when epoxy is fully cured.

What Is The Quickest Method Of Curing Epoxy Resin?

You might be wondering if there is a means to shorten the waiting period that comes with epoxy curing.

Here are a few recommendations and tips:

  • Purchase a Resin with a Faster Curing Time

The drying process can improve by buying a faster-curing epoxy resin. Quick-drying resins contain a fast-acting curing agent, and many will begin to cure shortly after being poured.

  • Boost Room Temperature

Adjusting the temperature of the room by a few degrees can affect the cure rate of your epoxy. Reduce epoxy resin dry time by using a heat lamp or raising your thermostat.

  • Preheat Your Materials

Preheating your materials before working with them is an additional way of improving the epoxy cure time. Let your resin containers stay in hot water for 5 to 10 minutes before use.


How The Type Of Epoxy Affects Curing Time

The epoxy cure time is affected by the product itself. Some people feel that maximizing airflow by opening all the windows will help the new epoxy floor dry quickly, similar to how paint does.

In some cases, it happens. In the vast majority of cases, it does not, because some epoxies get cured by moisture – they need moisture and heat to cure and solidify, so you could be better off having a damp atmosphere.

What Hinders A Faster Epoxy Cure?

Here are several factors that can affect how quickly resin dries:

  • Adding excessive quantities of curing agents to speed up the curing process.
  • Using a lot of colors.
  • Not using the appropriate curing agent and resin combination.
  • Working with epoxy at freezing temperatures.
  • Not mixing in the right proportion.
  • Mixing hardeners that are not suitable for the epoxy product.

When Is An Epoxy Fully Cured

Once the hardener mixture and the resin have solidified and you can sand it, the epoxy has cured.

Additional Epoxy Curing Useful Tips

  • When preparing the epoxy resin, all the components must remain at the same temperature. If they are not, your resin can have a hard time curing collectively.
  • To prevent unequal curing, ensure the surfaces and components are at the same temperature.
  • Properly mix your resin to ensure that it dries quickly and evenly. Make sure your proportions are evenly distributed throughout your resin.
  • Ensure the resin is well mixed, with the sides and bottom included, to prevent the ratio from becoming messed up.

In Summary

Epoxy cure time is approximately seven days but is dependent on the type of epoxy resin used. In some cases, it may take up to 72 hours for the cure to complete. Read the manufacturer’s instructional material to understand how long that particular type can take.