Unibond Grout Reviver Pen, White Grout Pen for Bathroom Grout Joints, Easy to Use Tile Grout Pen, Whitener for Restoring Discoloured & Faded Joints, 1x7ml

I bought the reduced price triple pack to save a few pennies as I'll be using this in my small bathroom and kitchen. The original grout is well over 20 years old and was looking rather grubby, so I washed all the tiles and grout down with a strong detergent first to remove any grease and grime then rinsed with fresh water and left it to dry for 24 hours. Application really couldn't be easier. Following the detailed instructions others have left in their feedback helped a lot, so thank you to them. After two applications spaced just over an hour apart, my bathroom tiling looks brand new, and I'm really looking forward to moving on to the kitchen when time permits. It's been a very enjoyable job to do. I don't know how long it'll stay looking this nice, but I'll be perfectly happy even if it needs doing every few years as the results really are very impressive. Thank you, Unibond!

Great for making a tired rental bathroom into something worth bathing in! You don’t get a lot of paint in one pen, so had to buy three to do a whole bathroom which isn’t massive. Left hand side of the picture is touched up, right hand side is without the application. Noticeable difference so am satisfied.

Really impressed with this I was considering retiling my bathroom but I heard about grout pens and this one did a good job. I can’t compare to others as it was my first purchase of a grout pens but it did much better than I expected.

Works, easy to use. But not a lot of fluid in them. Got through 4 pens. Still not did the area it was supposed to do.

The nib of this grout pelt is like a felt tip marker so you do need to be gentle in how you use it or else like other reviews have said, it will shred. Don't press down too hard either else the product will pour and drip out and you will risk pushing the nib into the casing. Just be slow, gentle and patient in how you use it and it will work well. Where you have really dark badly stained grout, you will have to apply it 2 or 3 times. My grout was very badly, deeply stained as its a very small bathroom shower-room with very high moisture and the bathroom fitter didn't come back to seal my grout/ tiles till some 3 weeks on (was meant to be next day then queue tonnes of rubbish excuses) and by then, the new grout had already started staining. So this was my first option rather than having the grout scraped out and re-done as I don't have time for all that hassle. (Did get a partial refund on the job in the end but I digress...) My advice is - clean and dry your tiles and grout, use this in a thin layer all the way around, wait for it to dry and then go back over it again in another layer. My grout finally looks respectable! As for coverage it's hard to advise on this. Obviously the more grout you have, the more you will need. My bathroom is 2m x 3m and the tiles are the large rectangular ones so less grout than a room with the small standard tiles so for me, one pen went all around this room twice and there's still some left in it. All in all, it works! Excellent!

Brilliant - was sceptical about this but it works really well. Bathroom and kitchen grouting looks white again. Easy to apply. Did 2 or 3 applications.

Used to touch up the colour of our grout , it doesn’t seem to go a long way . The nip starts to wear out before the pen dried up . Worth buying a couple if you have a lot of tiles like we do

They work well..tiles round the window and sink..loo..bath look nice and clean but not easy on the pocket if you have a lot of tiles.. doesn't go very far..the nib wears out very quickly..I've used 5 pens round a small wall of tiles but have had to stop as it's proving too costly to carry on 😔

Did the work.

Easy to use BUT the pen tip wears out fast

Before using make sure to follow instructions. Initially nib would be dry, you need to press against a hard surface, so that the nib goes in breaking the seal and the white paint fills up the nib and then you can start using it. Everytime you feel the nib is dry you need to repeat this step. 7ml is less and costly. Maybe better to buy a white paint and a small brush and repaint the Grout.

I went over some grout lines which now look so much better.

Works very well! I needed to go over it again a week later, but after that, the grout in my shower looks so much better.