Can you pour epoxy in the sun?

If you’re planning to apply epoxy in your garage, it can be difficult to determine if the temperature is too hot or too cold. Many people want to know if they can apply epoxy in the sun.

In this article, we’ll answer that question and give you some tips on how to get your garage ready for an epoxy coating. Ready? Let’s find out!

What happens to epoxy resin in the sun?

Epoxy resin is a powerful adhesive, and it can cure very quickly in the sun. However, this process can cause some problems. If you put epoxy resin in the sun, it will begin to cure quickly:

  • It may form an uneven skin on top of your object or project. This outer skin will be brittle and prone to cracking if you accidentally bump into it.
  • The interior of your project may remain soft even after most of its surface has cured fully—this means that any bumps or scratches could make cracks appear right through to your furniture’s core!

If you want to use epoxy resin outdoors in hot weather, then make sure that any containers are well-sealed so they don’t dry out while they’re sitting on tables outside during daylight hours

How long does it take epoxy to dry in the sun?

You may have heard that epoxy resin cures in the sun in 3 to 5 hours. That’s true for some epoxies, but not all.

If you’re working with a resin that has a long pot life, you’ll have more time to work on your project before it starts to harden too much. But if the resin has a short pot life, you’ll want to make sure that whatever you’re pouring into is prepped and ready before starting!

Epoxy resin can take longer than expected because it doesn’t cure evenly over time – some parts of your project will cure faster than others (so don’t expect everything on the surface of your object or model to be fully dried up just yet).

Or maybe there was some water left behind which slows down curing action? It depends on how well-prepared your material was and what temperature/humidity conditions were like when it was poured into its final container.

What temperature is too hot for epoxy?

You can pour epoxy on hot days, but you have to take precautions. You might want to think about planning your project for a cooler day or night.

Epoxy resin cures faster in warm temperatures, so if you’re working with a large batch of epoxy and the weather is hot, you have to be extra careful about prepping the surface it’s going into.

The good news is that epoxy will hold up against high temperatures. It has been tested as being heat resistant up to 150°C (300°F), which means it will hold its form when exposed to direct sunlight or other heat sources longer than most adhesives would manage on their own merit alone

Can you put resin in direct sunlight?

Can you put resin in direct sunlight?

Yes, but it will cure faster and be more brittle. You’ll need to work faster and make sure that the area you’re working in is protected from direct sunlight. You should also use a UV protected epoxy.

Will the sun help cure resin?

Yes, the sun can help cure resin. However, for this to happen properly, you need to make sure that your resin is exposed to sunlight.

When we say “exposed,” we don’t mean just the sunlight shining on it—you want the actual rays of light hitting the surface of your resin.

The sun’s rays will help the curing process along more quickly than if you were doing your project indoors or in an area with little natural sunlight.

However, even if it’s sunny out and you’re working in an open space with plenty of light exposure, your epoxy will still take some time to fully cure (usually 24 hours).

How long should I leave resin in the sun?

Don’t. Just don’t. Unless you want a bunch of sticky, useless resin, leave your epoxy out of the sun. The reason for this is that when you mix up your epoxy, it generates heat as it cures and sets up.

If you leave it in the sun, that heat will be amplified by the sun and cause your mixture to cure faster than what’s recommended on its label—and potentially even melt or warp!

Why is my resin bendy after 48 hours?

If your resin is still bendy after 48 hours, it may be because you placed your project in direct sunlight. The sun’s heat can damage the resin and cause it to become soft. While you can use a hairdryer to melt the resin and make it more malleable, this can also damage the product if it’s too hot.

If your project is made of small pieces (like beads), then they may not hold their shape when cool. Small parts like these need more time for curing than large ones do—and it could take up to 3 days for them to fully harden!

Can you dry epoxy with a hair dryer?

You can use a hair dryer to speed up the curing process, but it may take some experimentation to figure out how much heat will be too much. The goal is actually to cure the resin as quickly as possible without causing any bubbles or other defects.

You’ll also want to be careful not to overheat your project, which can damage the resin. Some people suggest using a fan instead of an actual hair dryer in order to help ensure uniform curing and avoid any hot spots that could potentially cause damage.


At the end of the day, working with epoxy can be challenging. In some cases, it’s not even worth trying to use it because it’s just too difficult for your project.

However, there are plenty of other projects where using epoxy is necessary or makes things easier. Hopefully these tips will help you figure out if you should pour epoxy in the sun.

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Martin Flood

Martin Flood has been working in the construction industry for over 20 years as a general contractor with expertise in remodeling projects that are large or small. He has furthered his career by specializing in epoxy resin flooring, providing excellent service to both commercial and residential clients. Martin’s experience enables him to offer professional advice on how to choose the right type of project based on your needs and budget.

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