Black diamond stoneworks Ultimate Grout Sealer: Stain sealant Protector for Tile, Marble, Floors, Showers and countertops.

I was concerned about purchasing a sealer that would cause new black grout to become discolored after sealing it as had been my experience in the past. After doing some research, I learned that as long as the sealer is water-based this would not happen. Even so, I was still skeptical but decided to give BlackDiamond a try based upon other reviews. I applied it to the grout with a paint brush in an inconspicuous spot behind the toilet and was very pleased to find that not only did not change the color of the grout at all, but it did a fantastic job of sealing it. It's an excellent product that is worth every penny and goes a very long way.

Although our grout had not been cleaned in a very long time, this did the job fairly well. I sprayed it on the grout then let it sit for 10-15 minutes before scrubbing it. Unfortunately I had to repeat the process 2-3 times to achieve the results and brightness that was almost as good as the original (on grey and cream grout). There are some areas that required using Clorox Toilet Bowl Cleaner + Bleach. Another minus is how hard it is to rinse and wipe up the Blue Diamond cleaner.

Easy spray but not great for grout lines. I sprayed all the tile and then wiped it down hoping it will protect the shower tile.

Bought a small bottle and came back to Amazon to buy the gallon. It really works! For almost one year I have to rely on my husband cleanning because I was sick. Now I'm back cleanning and scrubbing the white tile floor. I sarted with a small area, let it set for 3 minutes, gave a good scrubbing with a hard brush from Amazon too (which perfectly fitted in my broom stick) and the miracle happened. I love how my floor looks. I can wait for the gallon to arrive to continue my job. Don't mop before throwing some water to remove the dirt.

Have bought in the past and came with the sprayer this time it did not. Pretty hard to use the product if you have no sprayer. Not a product you want to have to put into another sprayer. It would be kind of a hassle luckily, I was able to gather the other sprayer I had out of the trash before it went out. The last time I bought, it came with a sprayer.

I was expecting to spend my whole weekend doing my master shower however it only took couple of hours. I plugged in my audiobook and time passed quickly. Prep/cleaning was tedious because I didn’t want to repeat the process. The sealing was simple and rather fast. I detected no odor with the sealant but my prep, otherwise, was strong as I used old fashion bleach and toothbrush. Great value in my opinion and I would purchase again when needed.

I've tried many products and this is by far the best I've used. Very easy to use and works excellent

My Goo Gone grout cleaner and Stone Works Ultimate grout sealer both arrived on time and well packaged. I followed the directions on the back of the bottles, sprayed the Goo Gone cleaner on and let it sit for a couple minutes, then scrubbed it with a soft kitchen scrub pad and toothbrush, and the dirt and grime from the last 20 months came right off. The most tedious part of the process was using a artist paint brush to apply the StoneWorks sealer, but it's all done. Next month I will probably have the Hydroshield company come to clean and seal my granite countertops, all of my tile in my bathroom, and the glass inside my shower, but these are great products with or without that.

After cleaning my kitchen floor grout several times over the years I finally found a sealer that works. Easy to apply and does the job. No more scrubbing. Grout stays clean and normal dirt washes off!

Purchased for floor tile grout. Easy to apply. Once dried looked same as before, so good. Time will tell if protects grout, but so far I'm happy with product.

Great product. Easy to use.

great product

Easy to use and hard wearing.