when can I epoxy new concrete?

Epoxy is the most common material used to seal and protect concrete. Epoxy can be applied to new concrete or older concrete.

When applying epoxy to new concrete, it’s important to follow a few steps in order to ensure proper adhesion and curing of your epoxy coating.

How soon after pouring concrete can you epoxy?

You can apply epoxy within 48 hours of pouring your concrete. This is the time frame where most contractors are willing to work with you, but if you have a special situation or need more time then you should be able to get what you need.

You can also apply epoxy within 72 hours of pouring your concrete. If it’s possible for you to wait 4 days after the pour, then this is probably the next best option for getting results that look good and last longer than those done within 48 hours.

You can also apply epoxy within 1 week of pouring your concrete if necessary; however, adding too much moisture will cause chemical reactions which may lead to damage in other areas such as cracks/crushing, etc so this should only be done under supervision by an experienced contractor who knows how materials react when mixed together over time at different temperatures –

which would require some temperature adjustments during application processes so as not to contribute additional stressors on top of existing ones like freezing temperatures (cold weather) causing expansion/contraction issues which could lead back to cracking problems down line into future repairs needed due to lack thereof maintenance practices being practiced today!

How do you know if concrete is ready for epoxy?

The most important thing to do before applying epoxy is to make sure the concrete is ready for it. The best time to apply epoxy is when your concrete has been dry for at least a week and has hardened enough that you can walk on it without sinking in too far.

To be safe, wait at least two weeks after pouring new concrete, but keep in mind that if you’re working with a very large area of driveway or patio, this may take longer than two weeks (some contractors recommend six to eight weeks).

Make sure that your surface isn’t too rough. If the surface doesn’t have a smooth finish yet—for example, if there are still rocks embedded in the asphalt—you’ll need to grind those out first so they don’t cause problems later on (rocks can puncture and tear up coating surfaces).

If there’s any chance rain will fall during this period—or if you live where snow melts into puddles—it’s important not only that no precipitation falls onto your newly poured surface but also that groundwater doesn’t pool up around its edges: either situation could lead directly back into an unsealed crack and compromise drainage long term;

even worse would be storm runoff carrying dirt into exposed cracks which could clog them over time leading eventually crack open again or worse yet cause structural damage such as shifting foundations due to inadequate ground support holding up buildings sitting directly above those areas

What happens if you don’t etch concrete before epoxy?

Epoxy is a strong, durable coating designed to protect your concrete from damage and wear. Epoxy is an excellent choice for any surface that needs protection against chemicals, moisture or other contaminants.

Unfortunately, the epoxy will not bond properly if your concrete has not been properly prepared before application. Etching removes or dissolves the microscopic pores in concrete (which can interfere with bonding), leaving behind a uniform surface that provides better adhesion for the epoxy coating to adhere to.

This process also creates an ideal texture on which to apply the epoxy so it will flow smoothly into all areas of your project and won’t leave small pockets where dirt could get trapped later on down the line – something that may be visible now if left untreated!

Do I need to prep new concrete for epoxy?

You do not need to prep new concrete for epoxy. You should NEVER use a brush, roller, or power washer on new concrete. You should also avoid using a broom with any kind of soap or detergent in it.

These are all abrasive and can scratch up the surface of your newly poured garage floor, which is why we recommend waiting until after it has cured (usually three days) before adding an overlay like our Epoxy Garage Floor Overlay Kit!

Can you epoxy coat fresh concrete?

  • You can epoxy coat fresh concrete, although you need to be careful about the timing.
  • You have to wait until the concrete is completely cured before you apply an epoxy coating. The curing process generally lasts at least 28 days, but it can take longer depending on your climate and how thick your concrete slab was poured (thicker slabs take longer).
  • If you try to apply an epoxy coating before the concrete has fully cured, your floors will likely crack or become very uneven when they dry. If this happens, you’ll have to start over with new materials and have them professionally installed by a contractor who knows what they are doing!

Can you put epoxy on damp concrete?

You can apply epoxy to damp concrete, though you’ll need to wait for the concrete to dry before you do. If you seal it while it’s still damp, the epoxy may not cure properly and become more likely to peel off later.

There are several ways to dry out your concrete before applying an epoxy coating:

  • A high-pressure washer will blast water off of the surface of your flooring material, making sure that every last drop is gone before you begin.
  • A hairdryer can help evaporate excess moisture from freshly laid concrete surfaces in no time flat, but be careful not to hold it too close, or else you could burn through the thin layer of material!
  • A heat gun is another great option for removing excess moisture from new floors, with less risk than using a hair dryer because it doesn’t get as hot as some other types of heaters do (and thus won’t damage sensitive surfaces).

What happens if you seal concrete too early?

As you may have noticed, there are a lot of rules about when you can seal concrete. It’s not like wood or stucco, where it will dry out and become brittle. Concrete is very durable once cured, but if you seal it too soon, there are some things that will happen:

  • The surface texture of new concrete will be lost.
  • The color of new concrete can fade over time (especially if exposed to sunlight).
  • Concrete is more prone to cracking due to moisture penetration through the sealer layer as well as from freeze-thaw cycles in cold climates.
  • Concrete stains much more easily if sealed too early; this is because the sealer prevents absorption of stains into the pores rather than trapping and absorbing them like an oil based stain would (an example of a good stain for sealing new concrete quickly would be Zinsser 123 Universal Sealer; we’ll discuss this product later).
  • Spalling occurs when pieces break off due to excessive drying after pouring wet cement paste into forms before they’ve dried completely


In summary, epoxy can be used to coat new concrete and will last for many years. However, you may want to wait a few weeks before applying it to ensure that the surface is completely dry.

Also, keep in mind that the epoxy needs to cure for about 24 hours before use so plan accordingly!

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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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