TEC Grout Colorant - Refresh and Seal or Change Grout Joint Color | A Faster and Easier Alternative to Regrouting Tile | 8 oz. Application Covers up to 350 sq. ft. - 934 Slate Gray

Excellent product. It took an hour to cover up the space between the kitchen tiles. I have a heated floor, and everything dried in 2 hours. The Silverado color matches perfectly!

Ordered this for a job and when we went to use it a month later, it was unusable like it was expired. Unfortunately, our window was already closed for returning. I recommend checking as soon as you receive even if you don't need it right away.

I changed the color of my grout from a light blue to bright white with this product using an artist brush and a grout sponge. It is easy to use if you follow the instructions.

The colorant/sealer is a nice color, kind of like concrete. However, top doesn’t work so using it is really difficult. Maybe it’s just this particular bottle. Otherwise, nice product but does take a little scrubbing to removed from surrounding tile. Just use a damp cloth/sponge. Photo shows lighter grout as “before” and the darker grout lines as “after.” Works so much better and quicker than Mapei UltraCare Grout Refresh I purchased at Floor & DecorEdit, see before/after photo of the finished floor. We were going for a solid concrete look and I think the grout looks great now. Per instructions you can do two thin coats for more drastic color change, but this is after one coat. Should last 15 years or a little less in high-traffic areas which may need a touch up.

I am a "newbie" to tiles and grouting. This product however, makes me look like an expert!We had some discoloration and pin-holes in our shower tile grouting.The pros didn't seem very interested in coming out to do a job "so small" and assured me that I could do it myself by just removing the grout in the old problem areas and re-grouting as necessary.This sounded kind of terrifying to me...But when I found this product on Amazon, I thought I'd give it a try.What a great decision - I feel like a "pro" myself, now!Simply run a bead of this TEC Grout Colorant with a color that matches the original grout, rub it into the pin-holes and discolored areas with a tooth brush, wipe off the spill-over on the tiles with a wet paper towel or cloth and let it dry.We have taken many showers since my DIY grouting job and the pin-holes are gone and the discoloration has not re-appeared.This is a great product! Thank you TEC!!