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

Cant tell you if the paint is special compared to a generic paint pen (because thats essentially what you get), but it works!

We have an older home, over 70 years old, with lots of tile work. Much of the grout, particularly the floors, though sound, is discolored. We have found these pens to be a simple and economical way to bring the grout lines back to an attractive state. It takes a bit of doing to get used to using them well, but once you do, it goes very fast. The results are wonderful. We have repurchased pens several times and are very happy with the result. We have been using them long enough to know that the result is long lasting and stands up just find to use and to cleaning. We are extremely happy with the economy, ease of use, and beautiful results of these pens.

Covered my dingy grout but tip gets worn out quickly , they need to improve the durability of the applicator.

I was able to cover half the length (~30M rather than 60M) with my pen.

This is a repeat order. Love this product. When your grout is dirty and nothing seems to help, this will work wonders. Easy to apply, long lasting.

Works but not much in the pen. Would need many to cover a large area.

pen wore out fast

If you want to touch up a few tiles this is fine. Anything bigger and you will probably not be happy with this .

The product works well.. I did feel it didn’t last as long as I thought it would.. I was working in a standard size kitchen and I have used 4 pens.. I’m not sure if this would be normal for the product or not

I was tired of looking at the greyed grout in my bathroom and I was hoping this would perk them up without the time and effort re-caulking would take, and it worked. It looks good. It was quick and easy to use and it has brightened up the walls. It feels clean and fresh again, without a painstaking full on caulk project. Now to address some of the negative comment made by others: For the tiles with cracked or missing pieces of caulk, they needed to be re-caulked. This pen was made to stick to existing caulk, it is not to be used to patch a crack or a hole, it really wont do the trick. The pen tip does get frayed but you can pull it out and turn it around and use the other side. It is not a super fine tip, so you may color outside the lines. This is not a big deal. Once it is dry, a straight razor blade will clean the edges quickly and neatly, It wont take long at all. I dont think the pen is a long term fix for high traffic areas, like the floor, the tiles that get hit constantly during a shower, or a counter top that gets cleaned multiple times a day. Those should be re-done with proper caulking. But I am very happy with the look of my refreshed bathroom and how little effort it took to get it.