does epoxy grout darken when wet?

If you’re looking for a way to add color to your garage floor, epoxy grout is a great option. But what if you want the floors in your garage to stay bright and shiny?

Well, there’s nothing wrong with using epoxy grout—as long as you know how it works and what to do when it gets wet.

Let’s take a look at how water affects epoxy grout so that you can keep your garage floor looking clean and new!

Should grout change color when it gets wet?

First, let’s talk about what grout is. Grout is a porous material made from cement, so it will absorb water.

This absorption happens on a microscopic level, which means that it’s not a visible change in color—but it can darken your tile grout over time if left unsealed.

If you’ve got the most basic of grouts (aka those not colored by pigments), and you’re using regular old white tile that hasn’t been sealed properly, your grout will probably darken when wet at first.

However, over time and with proper sealing, this should stop happening!

Why does my grout get darker when wet?

When you get your grout wet, it absorbs the water. As a result, the color of your grout will change from time to time.

The darker areas will become lighter and vice versa. This process happens because of capillary action—the same force that draws moisture up through plants’ stems and roots.

However, as soon as you stop getting your floors wet for several days or weeks at a time (depending on what type of flooring you have), this process stops and everything returns back to normal.

Does epoxy grout dry darker?

If you’ve been wondering about the color of epoxy grout, the answer is yes. Epoxy grout does dry darker than when it was wet.

However, this change in color is due to oxidation and not because water causes organic compounds to become darker.

In fact, epoxy grouts are made from epoxy resin which does not contain any organic compounds! It’s also worth noting that the color change happens slowly over time as opposed to becoming noticeably darker immediately after drying (like linoleum).

Does epoxy grout change color?

Epoxy grout will darken when exposed to moisture. However, it also lightens when dry and exposed to sunlight, which is why manufacturers recommend sealing and UV-protecting the grout once it’s cured.

In addition to making epoxy grout darker and more brownish in color when wet, exposure to high heat can cause it to darken even further—and permanently damage the look of your flooring if you’re not careful!

Does grout get darker when you seal it?

You’ll want to seal your grout after it’s been applied and dried, but before you start applying the tiles. You’ll want a sealer that doesn’t contain any harsh chemicals or solvents, since they can affect the color of your grout.

When you seal your grout, it will become darker—not because the sealer will stain it (it shouldn’t), but because when water hits the surface of your tile and then dries off, some of it will be absorbed by the cement in the tile’s surface.

This means that when that water evaporates out of there, some pigment from those cement particles will remain behind on top of your tile’s surface instead of being deposited on top like usual.

The longer this process goes on without being sealed off from air exposure with another layer (like paint), the more pigment is going to get absorbed into those pores in between each individual grain until eventually, every single one had turned brownish-grayish black color swirled around like chocolate syrup looks when spread onto anything else besides itself: namely.”

Does grout get darker over time?

Grout is a porous material, so it will absorb water. Over time, this can cause your grout to darken or lighten.

If the grout has been sealed with an acrylic sealer (like most modern shower stalls), then it’s more likely that the color won’t change over time.

Does grout get lighter as it dries?

Good news! Yes, grout will dry darker than it appears when wet. If you have a big project to do, this can be helpful to know when you’re laying out your tile and grout.

It’s also useful if you’ve laid out your tile and don’t like how some of the grout looks with the color of the tiles.

You’ll still need to wait until it’s dry before touching anything or making any adjustments though—anything else will affect how much light reflects off each piece of flooring once it’s in place!

Why is my new grout discolored?

Grout is a mixture of cement and sand, which are both strong materials. Cement holds the grout together while the water evaporates from between the tiles.

As it dries, it hardens into rock-like material that can be difficult to remove without damaging your tile.

When you apply grout to a wet tile surface, it will appear darker than when dry because of how much water is still present in the mix.

Once the grout has dried completely and set up into a harder form (usually within 24 hours), then you will have an accurate representation of what your finished product will look like once complete.

If your tiles don’t dry properly or if there are too many small gaps between them (this can happen if you used too much water when applying epoxy), then they’ll take longer than usual for their color to return back to normal once exposed again after getting wet again later on down-the-line


Overall, epoxy grout does not darken when wet. However, if you are using epoxy grout that is not water-resistant, then it may darken or become stained when exposed to water over time.

If this happens and you want your grout to look its best again, there are steps you can take to clean it up!

First off, make sure your surface is dry before trying any of these methods so that water doesn’t get trapped underneath and make the problem worse

Photo of author

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.

Leave a Comment