How To Remove Carpet Glue From Concrete

The soft and warm feel of carpet flooring is one of the main reasons for its popularity.

Unfortunately, when a carpet is removed from a concrete subfloor, residues of carpet glue are frequently left behind. Anyone who has gone through this can attest to how aggravating it can be.

The carpet adhesive is tenacious and difficult to get rid of. It’s not a good idea to leave the glue on the floor because it can accumulate dirt. Applying a concrete stain color is tricky because the stain can’t get past the glue to accomplish its job.

The good news is that old carpet glue can be removed from a concrete floor. All you need are the proper equipment and strategies to do the job.

brown carpet

Unlike other stickers that can be removed in a matter of minutes, removing carpet glue from your floor might be difficult. (Read Will Vinegar Remove Paint From Concrete)

In our guide, you can learn much more about removing carpet glue from concrete. By picking the right tools and compounds, you can learn by the end how to clean concrete the right way without excess effort. You’ll be armed with enough information to pull this sticky residue of glue from concrete floors, ready to take on your home improvement challenge.

What Will Dissolve Carpet Glue?

Scrape off as much carpet glue as you can with a scraper and a sharp razor. Most of the glue from the floor surface is removed during this procedure. Sweep the scrapings off the floor and make sure it’s clean.

Hot Water

In a large pot, bring enough water to a boil for pouring over the stubborn glue. Then, pour the hot water over the glue spots and let it soak in for about 2 minutes to soften the adhesive. Hot water is recommended since it is the most cost-effective method of removing glue from the floor surface.

To avoid being burned by a splash of hot water, lower the container holding hot water near the floor surface.

Instead of pouring water directly on the glue location, line it with a towel or a large piece of cloth to pour the heat in. Finally, remove all the carpet glue from the floor surface with a scrubber before it hardens. Look to see whether there’s any glue that hasn’t dried off on the floor. 

hot water

Remove Glue with Glue Remover

If the previous steps haven’t yielded results, it’s time to turn to commercial glue or mastic removers.

First, combine ammonia and liquid detergent in a 2:1 ratio and dilute with a pail of warm water. One of the active chemicals known to remove stubborn stains is ammonia.

It becomes soapy and easy to handle when combined with detergent. To avoid direct contact with the corrosive chemical, wear protective gear such as rubber gloves, goggles, and a face mask. Keep the area well ventilated as you work. (Learn How To Polish Concrete Floors Yourself)

Never mix ammonia and bleach since the resulting fumes are extremely hazardous, if not lethal. If the ammonia solution fails, try a more potent commercial glue remover. Remember to wear gloves as ammonia can burn the skin.

What Is The Best Product To Remove Glue From Concrete?

Unfortunately, when a carpet is removed from a concrete subfloor, residues of carpet glue are frequently left behind.

Anyone who has gone through this can attest to how aggravating it can be. The carpet adhesive is stubborn and difficult to get rid of. It’s not a good idea to leave the glue on the floor because it can accumulate dirt.

Because the stain can’t get past the glue to accomplish its work, it makes applying a concrete stain color difficult.

Here is a step-by-step plan for removing carpet glue from concrete floors.

1. Scrape the Concrete Glue

Remove as much glue as possible using a long-handled scraper. You’ll need a scraper with a razor blade sharp edge.

Often, this step suffices to remove all the concrete glue from the surface, yet if it doesn’t, sweep loose glue pieces up before moving on to step 2.

2. Apply Boiling Water

Depending on the type of glue and how old it is, you may loosen it up by simply boiling water and applying it to the dry glue.

If there is still a significant amount of glue on the concrete floor, you’ll need a large pot to ensure enough water. Let the water sit for 1-2 minutes to mix with the glue. Be sure to have a wet vac handy as you could have lots of water to remove.

3. Scrub Loosened Glue

Scrub the moistened glue off with a concrete floor scrubber or continue with the scraper. Apply more water and repeat as necessary.

hot flat iron

4. Use Hot Iron

If you have areas of stubborn glue, you can use the ironing method. Locate the patch of carpet glue and place a piece of paper on top of it. The paper should be completely open and wrinkle-free. In a straight gliding motion, run a hot iron across the surface of the newspaper. Repeat several times, remove the paper and continue scrubbing with your scraper at the softened glue.

You can use a heat gun for the same procedure but without the newspaper. You can find a heat gun effective, yet it can melt the glue and release fumes if too hot.

Troubleshoot Glue Removal

Even after using the above methods and seeking help from a concrete cleaner or mastic remover, you need to fix areas. When you pull up the tack strip, you can often see tack strip holes.

It is best to fill the holes after using an acid stain, as the color could change. Where the tack strip was, fill each hole with clear epoxy. Doing it this way lets the color show through.

How Do You Remove Glue From Concrete?

If you are looking how to remove carpet glue from your home, there are many commercial products, yet these can be hazardous, and the fumes can make your home stink.

Using the DIY concrete floor glue removal method is much easier, which you’ll find as effective and healthier than most commercial products. All you need is the right gear and some elbow grease.

However, for reference, here are a couple of other ways you can deal with the issue using an alternative adhesive remover. (Learn How To Get Super Glue Out Of Clothes)

Glue and Mastic Remover

If scraping and hot water don’t work, several eco-friendly mastic & adhesive remover options are low-VOC products, safe to use indoors, and have no harmful chemicals.

They can soften solvent-based carpet products and tile mastic. After applying for a few hours, you can remove the remaining residue from carpet glues on concrete using a scraper blade, scrub brush, or rotary floor buffer.

Mechanical Methods

Mechanical ways can be the most efficient method for removing glue residue from large areas.

Using a floor sander with a sanding disk can be used for a significant part of the floor. A handheld grinder along the walls and in the corners if chemical strippers don’t work after repeated applications to remove your floor covering glue.

One exotic way to deal with glue is to cover the glue areas for a few minutes with dry ice. However, it is much easier to simply boil water for the same type of result.

Use Flooring Overlays

Suppose a chemical stripper, manual floor scraper, and mechanical methods for removing stubborn carpet glue and mastics have failed. In that case, you can still remove a decorative concrete floor by applying an overlay or epoxy coating to the existing concrete surface. Concrete overlays hide flaws, cover exposed aggregate, and provides new flooring ready for staining, polishing, and other decorative flooring treatments.

Will Wd 40 Remove Carpet Glue?

Allow at least 5 minutes for the WD-40 to soak into an area of carpet glue before scraping it away with a plastic scraper. You only need to leave it for approximately a minute for the glue remover to freeze the glue, so it becomes brittle, allowing you to simply scrape away the adhesive with a scraper or putty knife from your concrete floors.

How To Remove Carpet Glue From Concrete (2)

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