Stone Restorer and Sealer, Black, Impregnating Sealant Restores the Colour of Faded Black Limestone, Slate, Marble and Concrete, 500 ml

This works so well. We had a Black limestone patio fitted years ago and over time it has become more grey than black. I have used all kinds of treatments to bring back the colour but nothing has really made a huge difference. I bought the small bottle to try it and the difference is amazing. It turns out that for my patio I actually need 2Litres but that is so worth it. I have applied by paintbrush to each slab and the difference is amazing. The photo shows the difference between the old colour and the slabs I have just completed. This was 1 coat - no second coat required so far.

The GLEAN Black Stone Restorer & Sealer is absolutely fantastic. It brought my faded black stone surfaces back to life, restoring the deep, rich color and giving them a beautiful finish. The application was straightforward, and the impregnating sealer has provided a durable, protective layer that repels water and stains. It’s been weeks now, and the stones still look as good as new. If you have faded black stone surfaces, this product is a must-try. It’s worth every penny for the incredible results it delivers. Highly recommended!

Do not buy this! I applied it on my slate bathroom floor as per instructions - first with a brush which was really streaky, then with a cloth which looked better. However with both coats, even after drying overnight, the product is coming off on our feet when we walk on the floor, especially if the floor gets wet (which obviously it will in a bathroom and would on an outside surface) - really bad! We're going to have to buy a clear sealant from another brand to stop this from happening.

Used these in damaged sandstone slabs and the look wonderful but think we will need a gloss wet look ciber to stope the dusty footprints showing

Improved the colour of my slate tiles. Took a while to dry. Did 4 coats. Pleased with result. Although have noticed if water splashes on the ties and its wiped off, the black comes off too. Hope this is helpful.

Took 4 coats. Totally panicked after the first 2 coats as was so streaky and patchy. Bought wo more bottles and did 2 more coats. Looks great finally. I tried applying with a small roller, a sponge and a large roller. The large roller worked best but had to really concentrate around the grout. We have had heavy rain since and my worry about it streaking was put rest. I would recommend but be patient

I used three coats of this on our limestone fireplace hearth stones. They've definitely made them look darker and hopefully also protected them. You need to be careful with the secondary Lid on this bottle. When I went to do the second coat, I couldn't get it out.. I tried squeezing it only for the bottle to burst.. spewing the black liquid all over my face, clothes, the dog, the bed and floor... It wasn't a good time...

Restored the tiled floor colour very effectively.

Top!!! Super produit mon mur est éclatant comme au premier jour.

Non ci sono le istruzioni per come usarlo. Comunque ho fatto un po' di prove e non funziona

Creíamos que era otra cosa, realmente es un tinte negro que ni sella, ni da brillo. Lo único que hace es teñir y manchar muchísimo No hay instrucciones en español

Produits récemment utilisé sur les galets à l'origine noirs de la douche mais très "fatigués". Deux couches effectuées renforcées par une couche de rénovateur pour carrelage (vernis). Produits aisé à appliquer ici à l'aide d'un pinceau et résultat très concluant. Maintenant à voir résistance dans le temps avant un nouveau traitement Attention petit bemol, toutes les informations d'utilisation sur le flacon uniquement en anglais.

​Ich bin sehr enttäuscht von diesem Produkt. Für Schiefer ist es absolut ungeeignet. Die Konsistenz erinnert eher an Wasserfarbe; sie zieht überhaupt nicht in den Stein ein, sondern bleibt lediglich auf der Oberfläche liegen. ​Das größte Problem: Selbst im trockenen Zustand lässt sich die Farbe mit einem einfachen Lappen wieder abwischen. Im Duschbereich ist das Produkt eine Katastrophe – beim Duschen löst sich die Farbe und man bekommt schwarze Füße. Für den Nassbereich oder Schiefer ist das Produkt definitiv nicht zu gebrauchen:(