Grout Pen Black Tile Paint Marker: Waterproof Grout Paint, Tile Grout Colorant and Sealer Pen - Black, Narrow 5mm Tip (7mL)

This grout pen is a LIFESAVER! The black grout in our shower would not clean up thanks to our hard water and we had to fix it before putting our home on the market. I found this grout pen and have converted everyone I know to grout pen lovers! It’s super easy to apply, doesn’t have weird chemicals or smells, looks great after application, and is great value for the money. The only con is that you will have to reapply it every few months if you have dark grout and hard water, but that’s not an issue for me.

I was seriously impressed by this little pen. Our black grout was white towards the bottom and black near the top - I'm sure the culprit was me spraying cleaner and letting it sit too long... anyway, this was VERY quick and easy to use and has held up well over the last 3 weeks of showering. I do wish there was a slighlty slimmer marker OR that it had a head like one of the "fatter" sharpies, but alas. I did make the mistake of scrubbing the grout to remove where I made mistakes and it let the paint get wet, run, and make a mess. I would be more careful next time and not bother scrubbing after.

I liked that it was TRUE BLACK. It went on black & dried black in minutes. Doesnt smell and the single large pen was enough to complete my entire counter top grouting. Couple of "could be better" things. The large tip is very big. (1) If they just included the smaller tip it would be perfect. Suggest scraping away any excess grout before it dries, otherwise you may have to scrub for clean lines. (2) They should include cleaning steps for excess or grout spillage. Its washable, but with some effort. After first attempts , I ended up using the large tip.on its side. It dried true black quickly (photos), but I definitely recommend waiting the 6 hours before getting tiles wet.Bottom line: I am happy with the results. I would buy the smaller tip pen for any tiles smaller than 10x10. My tiles are 12x12 and the tip was even too big for the grout lines. Finished grout looks clean & definitely black. Would recommend.

Great value , seals completely, covered and looks perfect!

Our black grout has never been black, even when it was first installed. I was hopeful this would help cover some of the efflorescence and discoloration.The color of the marker was nice, it instantly refreshed the area I tested. However, the product does not go very far at all, especially on large floor tiles. I was not even able to finish a small closet. The tip also wears down really quickly, even without pressing too hard. The marker is better suited for smaller areas or backsplash tiles, something like that. It's definitely not a cost effective option for 2,500 sq ft of floor tile.

Great for mosaic tile craft since my grout was too light.

It did great!! Only took me a few hours to do my entire bathroom. Husband said it would not lost, and it has. Great product.

Used dark grout and had white appear where crystal formed from the water. Used this and my grout, on the floor, looks great. Used in bathroom, and it's a few months now and still looks good! Made all the difference!