So you’ve decided to get an epoxy flooring for your brewery. Now all you need to do is apply the epoxy flooring properly. While this is a simple task, there are several things that need to be done to guarantee your floor comes out just the way you envisioned it.

Before Applying Epoxy

The absolute first step before applying your epoxy coating, is to prep your floor. It is essential that you clean your floor thoroughly. If you’re working on a concrete base, fill in any cracks or patch areas that need care before you start to clean. Once the damages, if any, have been repaired, it’s time to clean. Be sure to catch any areas you might overlook while preparing your epoxy coat. Oil spots will need to be removed and the floor will need to be degreased. Your floor is cleaned properly and you will want to make sure you vacuum thoroughly to rid of any remaining dust and debris.

The biggest problem you will encounter when applying your epoxy coating, is to make sure the moisture and humidity are in the right conditions. Conducting a moisture test on your concrete base is a reliable way to make sure the epoxy flooring will be applied properly. This can be done cheaply and effectively by taping shut a plastic sheet to your floor. After a day or so, you’ll notice if moisture has appeared or gathered underneath the plastic surface. If it has, you will need to apply a moisture blocking sealer. This is due to the fact that epoxy can be impossible to work with in high moisture conditions and will not guarantee a sealed floored. If the floor is not sealed properly then epoxy may not adhere causing the floor to bubble.

bubble epoxy


There are three main methods for preparing your floor for epoxy work, so take your pick on which one will best suit your needs.

The first is acid etching.  This technique is the most D.I.Y. option, as other techniques require machinery or skill. And is best used for concrete bases. First you need to apply the acid solution to your floor. Once it is spread out evenly use a scrubber, a stiff bristle broom, or a similar tool to work the acid solution. Once that it’s done, let the acid sit for up to 10 minutes, this will allow the process to take effect. Next you have to remove the spent acid. This can be done through power washing and then vacuuming once the floor has dried. Make sure to remove the residue before the acid dries. Finally you’ll need to neutralize any remaining acid residue. Using a diluted solution of simple green will work well on most floors (approximately 4oz per gallon of water)

The second method for preparing your floor is diamond grinding. This method will restore smoothness to your floor, which is needed prior to an epoxy coating. The diamond grinding method requires the use of machinery, however, it is quite easy to do. You will need a floor grinder with the proper attachments for your floor. Once the machine is turned on, use a side-by-side swaying motion to smooth out the entire surface of your floor. After this is complete, vacuum heavily to clear away any residue left behind. Be sure to always keep the grinder in motion to avoid grinding circular rings and low spots into the floor.

The final method that can be used to prepare your floor is shot blasting. There are various styles for this technique but all require machinery to flatten out a surface. Some people prefer diamond grinding to this method, but both will get the job done. The machine will pelt tiny metallic beads into the floor to blast away any stains or damages to the base. The advantage of this, as opposed to diamond grinding and acid etching, is that there will most likely not be any residue left over, as the machine captures everything. This technique requires a some skill and should be used on larger scale jobs.

Floor preparation is the most important aspect to achieving a smooth and even outcome. Be sure to research your method of choice before and as always the Brew Floors Team is here to answer any questions you have!

After all of this is complete, you will be ready to apply your epoxy flooring!

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2 replies
  1. Randall Orton
    Randall Orton says:

    We have been thinking of an Epoxy Floor for awhile now. This article was very informative. We had no idea as to the amount of prep needed for the Epoxy Floor. And your article is much easier to read than the side of the container. The last thing we would want is our new Epoxy Floor to start peeling up. I want to make sure that we understand the floor prepping instructions really well. Especially since it’s something we will have to do in house. We really want this to happen, and it looks like we should have a great opportunity this spring to get our new Epoxy Floor. We just can’t afford all of the cost to have it professionally done. Maybe if we can save some money on the prepping it would be extremely helpful. We have found that dish soap cleans the grease spots up without too much effort. I wasn’t aware of checking for the moisture content though. If we happen to find too much humidity in my concrete, What would be a good sealer to insure a good bond on our floor? After we get the floor really clean and seal it up if necessary, we will be looking into the acid etching most likely. What acid do you use to etch the floors? And is it readily available without having to order it? Thank you so much for the information. It was really helpful.

    • alex
      alex says:

      Hi Randall,

      Thanks for the note! I’ve sent you an email with more information on the moisture barrier product. A good Acid etch is one called Acid Magic. You can find this at your local hardware store.

      – The Brew Floors Team


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