MAPEI UltraCare Grout Refresh, Universal Grout Colorant & Sealer, 8 oz Bottle – Easy Grout Restoration & Protection, 5019 Pearl Gray

Exceptional product, one of the only that actually lasts in high traffic areas like floors. It is not easy to work with - it’s basically very sticky paint, not a slurry/peanut butter consistency like actual grout. That means it will get everywhere and you’ll have a lot of scrubbing to do. The results are worth the effort though. If you’re doing large format tiles, save yourself some trouble and just mask off everything except the grout line with tape but if you’ve got lots of little tile or mosaics then skip the tape and send it. For cleanup, I found I saved a ton of time with baby wipes and mr clean magic eraser instead of just water and a sponge. Lay it down (I use a silicone caulk spatula), get it worked into the grout joints, let it sit 20 mins, give the top of the tile a gentle pass with the baby wipes to soften the dried excess and then hit it with the magic eraser. I use the grooved ones to avoid digging into the grout joints, just be careful not to press too hard and drag it out of the joints. Practice a few times before tackling a big section. If you have a porous surface like honed natural marble, it will soak into the pores. Seal the tile before applying the grout refresh!The part you really want to know is whether it lasts - my marble mosaic bathroom floor with white cementitious grout had its lines constantly turned orange from dead skin, moisture and general wear. I applied this 6+ months ago and it still looks brand new. Zero complaints and it’s the only paint style option I’ve ever used that lasts like this. It also seals the existing grout nicely and makes it less prone to collect gunk.

Love this stuff. It colors and seals grout. I've used it to refresh old stained grout. I've used it to color match and seal new grout. I've used it to change the color of a grout (dark grey to bright white took 2-3 coats). It works great! And it keeps grout looking new for years. I've had some applications that are over 5 years old that are still going strong and looking good.It is a bit of a labor of love to apply this. You have to be on the floor, crouched, while you paint it onto the grout with great detail. I use a child's toothbrush for this. As you have to scrub it in and make sure it soaks into the grout to get the seal. Then before it completely dries, you need to wipe off the excess with a damp rag. If you can't dedicate some time and energy to do this, then I wouldn't recommend trying.It's very labor intensive, detailed, and tedious work. I tried to hire people to help but after they found out what they would be doing, they declined! I ended up doing it all myself...a little at a time, a room at a time. I've done every room in the house. On the floor. On counter tops. On back spashes. In the bathroom. Just excellent. Can't argue with the results!

There is nothing to dislike about this product - Directions are 30 to 1hr brush on - I had a bath with original 4 inch builders tile - almond - with white grout. Brushed it in - let is sit for 30 minutes to an hour and wipe off excess. I actually waited 15 min and used an old damp microfiber car cloth and it wipes down just fine wthout draggng out the grout line. I also used it on our 8 inch white tile on white grout in my dining / kitchen - worked great and lasts. My wife used the steam mop on the 8 inch tile and it does not affect this product after application and normal drying time. If you don't want to pull up an older tile floor and it is in ok shape except your tired of looking at dirty grout, give this a try. Pictures will not show much - we already had dingy white and this does a easy refresh.

I might have to update this later, time will tell if this stuff sticks around. We have a chalk like substance between our very uneven kitchen tiles, who put that there....no one knows, but they stink. Since we are renting, the ol' tear it out and do it the right way will simply not do. I asked, they said no. So I bought this stuff, applied it and used a razor to skim the areas where it needed a little extra help keeping on the area where the grout should be. It made clean lines, really nice, however, it dried too fast in some areas and had to be put down again since it peeled up a little. Would love to see it work on grout that is not chalky, Im sure it's great. There is nothing like a nice clean grout line.

We bought our brand new (just built) house in October of 2021 and lately, we noticed our shower had been getting so disgusting and moldy. We couldn’t figure out why because we cleaned it all the time and left the door open sometimes to let it air out. We think they maybe didn’t use waterproof products but who knows… we finally decided to rip out the moldy caulk and give it a really good scrub down and re-caulk it. (We used the same brand of caulk as this product. We bought it from Lowe’s). Then our plan was to use a grout pen on the grout but after buying 2 different color grout pens from Amazon, I just wasn’t happy with the color of either and I thought it looked cheap. I finally found this product and realized it was the same Brand and exact same color (Bone) as the caulk we had used so I bought it and I’m so glad I did because the color is perfect and it transformed our shower! I will say, I found the best way to apply and wipe it off for me was to spread it on the grout with a brush and let it dry for about an hour or two and then scrape off the excess with a heavy duty metal paint scraper (got ours from Ace Hardware). I also used one of those green, thin Scotch more abrasive sponges (dry) so rub off the rest of the excess. It gets messy and took me an entire afternoon and evening to do that to the whole shower but in the end I love how it turned out! I found that wiping the excess off with a paper towel like the instructions said also removed the grout paint from the grout lines so I decided to just let it dry and use the scraper and sponge. Hope this review helps some of you!