Smartseal Grout Magic – Mid Grey & Pre-Treatment – Professional Reviver & Colour Restorer – Long-Lasting Sealer Superior to Grout Pens & Paint – 15-Year Durability

Very happy with the product on using it. Goes on easily, and goes a long way. I bought the sample version until I found the right shade as my floor tiles are tricky to match. The job itself needs a brush a touch smaller than your grout line, eg artist type brush, small damp cotton wool balls to wipe away excess paint on tile edges as you go, and calm careful work. Two coats worked; looks great again. Mines was a reasonably small job. For big jobs I would split up the work into stages. The product is good but the care and attention is absolutely needed to get it looking well done. Will now see how it lasts.

The product absolutely works and you can get a good finish, but how it comes out is completely down to your preparation, method, and how good the grout has been done in the first place. Firstly, you need to clean the grout thoroughly, if there's any grease on the kitchen grout or slime on the bathroom grout then it will not penetrate and will come off when you rub off the excess. As someone else in the reviews has said, a wire brush (I used a firm toothbrush) is a good idea, a scourer at least. Secondly, the instructions say that you can remove the excess immediately but I haven't found that to be the case. It needs a good 45 minutes to an hour to soak into the grout, and at least two coats. Lastly, and this likely only relates to darker colours; if your grout is poorly done (as mine was) then making the colour darker show up the poor workmanship. Excess grout on the tiles will show way more and uneven tiles will become more apparent. If you're doing white on white then you should be fine. A decent product, but needs to come with MUCH better instructions and support - a guide video would do the trick.

Really impressed with this product. Our kitchen tile grout was very old and had gone almost totally black in places, it looked awful and felt like it was never clean, despite scrubbing and bleaching. This product has made the grout look new and the floor so much cleaner. It's been nearly a year since we used it and it still looks perfect. It isn't difficult to use, but it does take a LOT of work across a large area, so be ready for that... But it is worth it! We bought a stiff bristled paint brush that was the width of our grout lines to apply it, which worked really well. Wiped off the tiles as we went. You don't need a lot - it looks better if you use as little as possible and really work it into the grout with the stiff bristles. We used the brand's grout cleaner to prep before applying and I think it made a difference. Basically, it's a whole lot of work to do and my back hated the process but the result is excellent! Wish we had done it sooner.

Be careful with this product. It does not mention it is a sample. Not fit for purpose! No stars but have to include for comments to be recognised! To return costs nearly £3. Learning from experience!

This is a very good paint but I ordered the ivory and unfortunately Its more of a pale yellow against my tiles.

So easy to use. Made the grout come up like new. Had a friend try and tell me it wouldn't work that well, and they were amazed how good it looked and how easy it was. Did the kitchen first 2 years ago and still looks brilliant. I did dark grey straight over white. No pretreatment. Just a quick clean, let it dry and then painted on, not perfect, wiped off and it looks like it has been newly re-grouted. Full kitchen took less than half a day!!

Great little product, we have light grey floor tiles with a silver grey grout however because we are still on a building site and we own a dog the grout was forever looking dirty, We used the dark grey grout and it went on easily and covered up the light grey and makes the floor look like new again you now cannot see the dirt this product also seals as well all in all a very product I can highly recommend, Just a note this product goes a long way, I did all my down stairs with it and still had liquid left over (I bought 4 bottles) and it covered a long hallway, a living room and a large kitchen not sure of overall sq yardage but its a fair size, I have put a picture in so you can see the difference in the shades

I brought this product to try to cover up the shading of the grout of a recent (4 weeks) bathroom retile, I followed instructions, used a spray bottle to wet and a new clean cloth after 15 minutes to remove the excess from the tiles. Very difficult to remove even though the instructions state it can be left for up to 60 minutes and the the water started leaving runs in the paint on the grout and also wiping was removing some of the paint from the grout as well. I had to persevere as i had already begun so I started on the next wall which was dry and clean, i painted the grout and left to dry buffing away the excess with a microfibre cloth, very laborious and the grout now has a semi sheen or satin sort of finish which i did not expect and do not like. Very disappointed, i would only use this product if raking out and re grouting is not an option which is what i will now have to do.