how to prep for epoxy floor?

Epoxy is a great way to seal, protect and beautify your concrete floors. However, before you start your project there are a few steps that must be taken to ensure that the epoxy is going to stick well and last for years.

In this article we will cover everything from prepping your floor for epoxy coating, including what happens if you don’t do it properly!

How do I prep my floor before epoxy?

To prep your floor before epoxy, you’ll want to start by cleaning and etching the concrete. This will remove any wax or sealer from the floor.

Use a concrete cleaner to remove dirt and grime, then use an acid-based etch remover to remove any wax or sealer in your floor.

Next, use a floor scrubber (commonly called a “buff”) to clean the entire surface of your concrete with one pass.

If you’re using epoxy paint on top of your bare concrete or asphalt driveway, you’ll need to make sure that it’s completely smooth after etching with an acid remover.

If not, chances are high that when you apply this type of paint product overtop of uneven surfaces (such as gravel) it will result in bubbling up which looks terrible!

Do I need to grind floor before epoxy?

Grinding is not necessary for epoxy floors. In fact, grinding can cause damage to the floor and may result in dust and airborne particles that could affect the quality of your project.

Grinding also creates a rough surface on which epoxy can’t stick very well, so it won’t look as good as you might expect.

One exception: If you have an uneven concrete slab, you’ll need to level it before applying an epoxy coating. This may mean doing some light leveling with a concrete grinder or jackhammer before applying your coat of epoxy.

How do you prepare an uneven floor for epoxy?

The first thing you will want to do is clean your surface. This can be done with a good sweeping and mopping of the floor or with a pressure washer if it is really dirty.

Once you are sure that the floor is clean, you need to decide how much prep work needs to be done. If there are large dips in your concrete or uneven areas, it is best to grind down these areas before applying epoxy coatings.

If there are only slight dips, sanding may suffice but will cost more time and money than grinding would cost.

Grinding should improve adhesion between the concrete and epoxy coating by removing any imperfections from either surface that could lead to peeling later on down the road if not addressed before application begins.

Once all of those loose particles have been removed from both surfaces (concrete/floor) then use an etching material such as Hydromelt 5500 Etch & Cleaner from Epifinish Coatings Inc., which allows better penetration into pores of cementitious materials such as concrete floors when compared against other brands available for sale today!

The final step involves applying two coats of epoxy coating over top once again making sure surfaces have dried completely before application after first being cleaned thoroughly using alcohol wipes or another cleaning agent designed specifically for removing grease stains etcetera off surfaces without damaging their integrity at all costs so please keep this in mind while shopping around online searching for affordable options available today without having worry about damaging surfaces beyond repair.”

Do I need to prep new concrete for epoxy?

Concrete needs to be cured for a minimum of 28 days. The epoxy is applied over the top of cured concrete and will be bonded to it.

If you are working on an area that has been poured in the last month, this should not be an issue. If you have just finished pouring your floor, you may need to wait longer until it’s ready for application.*

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

If you don’t etch concrete before epoxy, the floor will not look as good. If you want to do it right and get the best results possible, follow these steps:

  • Clean your floor with a degreaser like Grout & Tile Cleaner (which is also a great product for cleaning tile grout) or something similar. This will make sure all of the dirt, oils and other contaminants are removed from the surface of your concrete slab so that they don’t interfere with adhesion of your epoxy floor coating later on. Make sure there are no oily spots left behind because these can cause bubbles in your finish coatings!
  • Mix up an acid solution using muriatic acid or phosphoric acid (or both), according to the manufacturer’s recommendations for each type of etching chemical being used (check out our Safety Tips section). If using muriatic acid alone without phosphoric acid added into it beforehand then be sure not too use more than 1 part per 4 parts water ratio at any given time while mixing up this solution since more may cause damage if absorbed into cracks which could result in expansion when combined with moisture present within them from rain/wet conditions etcetera down below ground level surfaces where we walk upon daily life activities requiring footwear usage such as cooking lunchtime meals on weekends when having fun playing sports together by ourselves instead doing other things like going fishing instead because we’re afraid someone might see us wearing flip flops instead going barefoot outdoors during winter months due high temperatures reaching close low 30s F outside weather condition temperatures which could cause serious injury if barefoot walking outdoors without proper footwear protection provided by wearing sandals made someplace else other than here locally where we live nearby Washington DC area living near Virginia Beach VA home neighborhood community center site location.

What do you clean concrete with before epoxy?

  • Use a power washer. Power washing is one of the most effective ways to clean your concrete as it cleans deep into the pores and removes dirt, grease, oil, and other contaminants. This method is recommended if you have only minor stains on your flooring.
  • Use a concrete scrub brush with an abrasive pad or blade attachment that can be used to remove stubborn stains without scratching the surface of your epoxy flooring. This method works well for cleaning large areas at once; however, it may not be as effective for small stains or crevices in grout lines because it does not provide as much pressure as some other methods listed below.
  • Use a concrete floor cleaner like Scrub-A-Dub (which uses enzymes) or Aqua Universal Floor Cleaner (which contains solvents). These products will help lift off dirt and grime from your floors while also providing long-lasting stain resistance once they dry properly after using them!

How do you sand a concrete floor for epoxy?

We recommend using a fine grit sandpaper, and smoothing out the surface with a circular motion. Be careful not to sand in the same area too many times, or you risk weakening the concrete and causing cracks.

Don’t use power sanders for this project; it’s best if you can do it by hand. If your concrete floor needs a thorough cleaning, there are several ways to go about this step:

  • You can pressure-wash your floor with hot water and detergent
  • You can scrub it with an all-purpose cleaner (like TSP) followed by rinsing with water again
  • If your concrete has oil stains on it, try using muriatic acid

How do you know if concrete is ready for epoxy?

If you are in the process of preparing your concrete floor for epoxy coating, it is important to know how to test if the concrete is ready.

If you have any doubts about whether or not your floor is suitable for epoxy coating, it’s best to wait until it is ready before proceeding with any testing.

It can be difficult to tell if your floor is ready without doing some research or testing. You will need a small piece of cardboard or wood that has been cut into an even smaller square shape (approximately 1″ x 1″).

Apply a small amount of epoxy onto the cardboard or wood and place it down on your concrete surface. Wait at least 30 minutes before checking on how well it adheres.

If no residue remains on top of your material then this means that there were no problems when applying them together!

However, if there are still some stray pieces sticking up then this indicates that there may be an issue with either curing time/leveling out all areas evenly throughout each layer applied during construction stages.”


Prep work is a crucial part of any epoxy job, but it doesn’t need to be overwhelming. With the right equipment and prep materials, you can get your concrete floor ready for epoxy in no time.

In this article, we’ve covered all the major prep steps from getting rid of dirt and grime to cleaning concrete so it’s ready for epoxy coating.

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