Use specialty grout colorant (like MAPEI Grout Refresh or Polyblend Grout Renew) or a grout paint pen. These are waterborne acrylic epoxy stains and sealers designed specifically to bond to cement and epoxy grout. For low-traffic or craft projects, heavily pigmented acrylic paint mixed with a sealer works too.
I mix acrylic paint with water until it's runny then paint in dry grout. Thinning it helps it seep into the dry grout.
Since paint is not formulated to be applied to grout, it will not produce a great result. It will sit on top of the surface of your grout lines, and it will not last. Even if it looks okay in the beginning, it will end badly in a short amount of time.
Yes, you can paint grout with acrylic paint. It is a popular, budget-friendly DIY hack to change grout color or cover stains. However, it is only recommended for indoor, low-moisture, decorative projects (like wall mosaics or craft pieces).
Straight vinegar or another stronger acid will dissolve the top layer of the grout, so even if dirt and stains are removed, part of the grout is too, which means you'll need to regrout sooner. Vinegar and similar acids are also bad for stone tile because acid can cause etching in the stone.
You should not use regular wall or trim paint on grout. Because grout is highly porous and experiences high stress, regular paint will quickly flake, peel, and trap moisture. Instead, you should use an epoxy-based grout colorant (which stains and seals the grout) or a dedicated floor/porch enamel paint.
Yes, grout paint lasts for 3 to 10+ years, depending on the area's traffic and how well you prep. It is typically a water-based acrylic "color sealer" that penetrates the porous grout, changing its color while adding a protective, water-resistant coat.
Some may use mechanical brushes to scrub grout and remove tough stains. From there, professional cleaners may use a wet vacuum to extract dirty water and cleaning residue to dry the area, completing the job with a grout sealer to protect against future stains.
Paint will assuredly be a messy exploit, but it is the wrong choice for more reasons than that. We advise you to entrust your grout color sealing to the experts at The Grout Medic. Grout painting could be disastrous for your grout and tile.
Yes, there is! Grout paint (often called grout colorant or refresh) is a specialized waterborne acrylic stain and sealer designed specifically for cement-based grout joints. It acts as both a dye and a protective layer to completely change the color of existing grout or cover up stubborn stains.
Epoxy Grout Colorants
Epoxy grout colorants are known for their durability and resistance to stains and moisture.
Builders often skip sealing grout to cut costs, save time, and avoid returning to the job site. Additionally, many modern polymer-modified grouts are stain-resistant, and sealing un-cured grout can trap moisture. Some installers even use it as an upsell or exclude it because sealing can leave a hazy film on certain tiles.
Grout paint is top-notch at hiding discolored and dingy grout, but it shouldn't be applied over mold or mildew. Spray a heavy-duty mold killer to KO any fungus before you paint.
Grout paints and colorants (like stain-and-sealer in one) are highly effective budget fixes for stained or discolored grout. While they dramatically transform the look of tile without the labor of regrouting, user reviews emphasize that application is tedious and durability varies depending on moisture and foot traffic.
Just a few more important points: As the grout can absorb the soap as well as a stain, do not clean with oil or wax based cleaners (Murphy's Oil soap, Pine Sol, etc.). These products will leave a waxy or oily film in the grout. Even good alkaline cleaners, if not properly rinsed, will leave a sticky soap film.
Yes, Dawn dish soap is excellent for cleaning grout because its gentle, grease-cutting formula will not strip sealers or discolor tile. For everyday maintenance, simply mix a dime-sized squirt of Blue Dawn in a 32-oz spray bottle of warm water. For tougher grime, you can upgrade to a deeper-cleaning DIY mixture.
Steps:
How to prepare your grout for painting
Let the paint dry, and then assess whether you need a second coat. If you're going from a really dark grout to a very bright white color, you may need to paint another. Going from light brown to bright white, I found that I only needed to touch up a few areas with a second coat.
Use specialty grout colorant (like MAPEI Grout Refresh or Polyblend Grout Renew) or a grout paint pen. These are waterborne acrylic epoxy stains and sealers designed specifically to bond to cement and epoxy grout. For low-traffic or craft projects, heavily pigmented acrylic paint mixed with a sealer works too.
Yes, there is! Grout paint (often called grout colorant or refresh) is a specialized waterborne acrylic stain and sealer designed specifically for cement-based grout joints. It acts as both a dye and a protective layer to completely change the color of existing grout or cover up stubborn stains.
Grouting mistakes make your tile project look less than perfect—despite all of your hard work. Common errors include adding too much water to the grout mix, holding the grout tools wrong, and neglecting timing.