can epoxy grout be used over sanded grout?

Are you in the middle of a project and wondering if your current grout will work with your new one? Or are you thinking about what kind of grout to use on your next project? We’re here to help!

This article will cover all the basics, from whether or not epoxy grout can be applied over old sanded grout, how to know if it’s time for a regrouting, and more.

Will epoxy grout stick to cement grout?

Yes, epoxy grout will stick to all types of grout. However, if you use sanded grout and it is several years old or has been exposed to moisture for some time, the sanded surface may need a little help in keeping the epoxy from seeping down into the cracks and crevices.

Waxing the existing surface will give your new grout more grip so that it doesn’t slide around when wet or dry. Using wax also helps keep mold away because it is water repellent!

Can new grout be applied over old grout?

Yes, you can apply new grout over old grout. Before you do, however, make sure that the old grout is removed from the tiles.

To remove old grout:

  • Use a grout float to scrape off most of it.
  • Use a stiff brush to brush away any remaining residue.

Is epoxy grout better than sanded grout?

Now that you know the difference between sanded and nonsanded grout, let’s answer the question: is epoxy grout better than sanded grout?

The short answer is no. Epoxy grout can be more expensive than other types of grout, but it’s also harder to clean and will not last as long as you might hope. While it does offer some benefits over traditional sanded or nonsanded grouts, these benefits are outweighed by the drawbacks of its higher cost and decreased longevity.

If your goal is to create a durable finish that will last for years with little maintenance, then you should consider using epoxy instead of traditional types of tile adhesives such as cement-based adhesive or silicone-based sealants (which work well in some situations).

However, if your goal is simply to create an attractive surface that can be cleaned easily after years without having any significant negative effects on how often it needs maintenance then either option should work just fine!

What happens if you grout over old grout?

If you’re using epoxy grout over sanded grout, you’ll likely be disappointed. The reason for this is that epoxy needs something to stick to, which is why it’s so important to clean the existing surface before applying it.

Epoxy does not adhere well to bare concrete or other uncoated surfaces because there’s nothing for it to grab onto and adhere to.

This means that your newly-installed epoxy will most likely peel up from the ground before long, making removal difficult and messy—and then of course leaving behind a layer of sanded grout when you do manage to scrape off what’s left behind!

When installing new floors or walls made out of concrete or stone tiles (like porcelain or glass), always make sure that they’ve been properly cleaned before attempting any installation project involving adhesives like epoxy grouts.

If there are still any stains on the surface after cleaning it with soap and water (or even bleach), then try scrubbing it with steel wool until all traces have been removed; this should give enough traction for your chosen adhesive material so that it sticks firmly in place without falling off prematurely due to lack of sufficient adhesion properties between materials used during construction projects such as these two examples mentioned above–or any other type which may require similar treatment

Does epoxy grout crack?

Epoxy grout is more durable than sanded grout, so it will not crack or break as easily. The epoxy component of the material also means that it’s better at resisting moisture. This makes it a great choice for use in bathrooms, where water can cause damage to floors and walls.

Epoxy grout does not absorb water like other types of grout do—that’s why you need to let it dry completely before applying any sealant or top coat. If you apply an epoxy coating over wet epoxy that hasn’t had time to fully cure, then you risk ruining both layers of your floor installation!

Is sanded grout cement based?

Sanded grout is cement-based, and epoxy grout is resin-based. The difference is that epoxy adheres to sanded grout better than sanded adheres to itself.

Epoxy also takes longer to cure than sand, which means you can apply it with less moisture on the surface of your tile.

Is epoxy grout good for showers?

Epoxy grout is a good choice for shower floors because it offers many of the same benefits as regular epoxy, but with more flexibility. Epoxy grout can be used on bare concrete or wood, as well as on surfaces that have been previously sealed or painted.

This means that you don’t have to worry about whether your floor has been properly prepared for sealing before sealing it with epoxy grout.

Epoxy grout is also ideal for bathroom walls and shower stalls, because it offers superior waterproofing qualities compared to other types of sealants like silicone caulk or polyurethane caulks and paints.

The water resistance properties of epoxy are further enhanced by its ability to withstand extreme temperatures up to 180 degrees Fahrenheit—more than enough heat resistance required by most bathrooms!

Do I have to remove all old grout before Regrouting?

The best way to remove old grout is by using a utility knife and scraping it off. There are also special products that can be used to dissolve the grout, but these can be messy and time-consuming.

If you’re applying epoxy grout over sanded grout (and not tile), you’ll want to clean any loose sand from the surface of your shower before applying new epoxy.

You may need to use a wire brush or scrub brush for this step depending on how much sanding you’ve already done. After cleaning, make sure all dust is off before applying new epoxy, or else it will just come right off after drying!

If there’s still some dust left on your walls after cleaning them with water, wipe them down with rubbing alcohol—this will help prevent discoloration in areas where applied epoxy sits atop existing brickwork.


The answer is yes and no. The most important thing is to make sure that the grout is completely clean before applying the new epoxy grout.

If you are using a different type of grout, then it’s best to remove all old material so there aren’t any contaminants left behind that could cause problems later on down the road when it comes time for maintenance or repair work.

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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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