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🖌️ Refresh your grout, refresh your space — don’t let dull tiles hold you back!
The GROUT PEN by Rainbow Chalk Markers Ltd is a 7ml precision applicator designed to restore and protect tile grout in kitchens and bathrooms. Its anti-bacterial, mold-resistant formula covers up to 60 meters of grout lines, delivering a water-resistant finish that revitalizes ceramic, porcelain, marble, and stone surfaces. Lightweight and easy to use, this UK-made grout pen features a reversible tip for extended use and is highly rated for quick drying and professional results.











| ASIN | B006MCSFTS |
| Best Sellers Rank | 7,805 in DIY & Tools ( See Top 100 in DIY & Tools ) 38 in Tile Grout |
| Brand | RAINBOW CHALK MARKERS LTD |
| Colour | Grey |
| Compatible Material | Ceramic, Porcelain, Marble, Stone |
| Country Of Origin | United Kingdom |
| Customer Reviews | 4.2 out of 5 stars 6,356 Reviews |
| Included Components | Grout Pen |
| Item Dimensions | 9.5 x 1.4 x 19 centimetres |
| Item Form | Pen |
| Item Type Name | Grout Pen |
| Item Weight | 25 Grams |
| Item dimensions L x W x H | 9.5 x 1.4 x 19 centimetres |
| Item weight | 25 Grams |
| Manufacturer | Rainbow Chalk Markers Ltd |
| Manufacturer Part Number | GP81115 |
| Material | Silicone, polyurethane, polyvinyl chloride |
| Model Number | GP81115 |
| Number of Items | 1 |
| Number of Packs | 1 |
| Product Warranty | 30 days |
| Style | Grout Pen |
| Style Name | Grout Pen |
| Surface Recommendation | Walls and Floors |
| UPC | 722480211157 |
| Unit Count | 7.0 millilitre |
| Water Resistance Level | Water Resistant |
| Water resistance level | Water Resistant |
R**T
Great
Worked great. Very easy to use, dried quickly with the perfect finish.
W**R
Impressive!
I was really impressed with this grout pen. I used it on floor tiles in my ensuite bathroom. It went on lighter than my original darker grout but looked great once finished and completely refreshed my whole bathroom floor. The nib was a bit worn out at the end but managed a decent sized area with no problem. I intend to buy the white pen to go over my shower area.
A**R
Great product if used correctly.
So there's a nack to this ! Shake it loads, If you use a piece of card (I used the back of the packet) and press it down for 10 seconds then draw a line on thr grout and repeat, the paint will come out consistently and you can have a longer lasting nib as you're not dragging the nib on the grouting as hard. At the beginning I was like yes this is amazing, im gliding through this, isn't life great. Then after an hour and a half my back was hurting, I was having an existential crisis, I just wanted it done, and basically ended up getting aggressive and doing it as quickly as possible. Took 2.5 hours in total. I'm not ashamed to say the first part is considerably neater than the second. I am 5ft2 had to do some climbing to get the tops and leaning over vicariously. Overall I'm pleased with the final result. Kicking myself for rushing the end. Used 2 pens as when the nib started to go it looked sloppy. I'm now drinking a glass of wine as I deserve it and it's not even 12 o'clock. This was written by a 28 year old woman on her annual leave. Be warned! It's like adult colouring in with more serious consequences if you go out the lines.
L**.
Grout pen
Easy to use,
A**R
V33 grout pen every time.
Ok for small jobs. Had to purchase 3 pens even though 1 should have been enough. Everytime you wipe away excess you have to touch up grout line again. Besides that the nib is poorly designed and spurs out making it hard to do a precise line.
A**D
Game changer!
I bought this because my bathroom was looking dull those once white grout lines were now discoloured and it looked awful, I bought both the grey and the white the grey I’ve used against white tiles and it’s literally transformed my bathroom, it looks so modern and beautiful. The white has refreshed my kitchen. Soo easy to use, I did the whole of my bathroom within about an hour. It was actually quite therapeutic and not at all stressful I wish I had done it sooner if I knew how easy it would’ve been. I’ve had it on a few months now, some areas have needed a little touch up but nothing major. So very impressed
R**X
Easy to use
Very good product, definitely worth buying.
T**G
Just don’t, have a beer instead.
What a load of crap. My bathroom has been driving me MAD so thought I’d do a little diy makeover until we have more money and can actually get more professional people in. Obviously due to the price I didn’t have massively high hopes. I was at least hoping for some good coverage from afar. 60m coverage this promises, two of pens (2, TWO) got me this far. They nibs start fraying straight away, the coverage is patchy. It wipes off the ceramic nicely and it’s odourless which is the best I can say about it. Honestly save your £3 for a nice cold pint when the pubs open, I’m going to go watch some YouTube videos on how to re-grout as I feel that would be better than trying a third pen and just getting more annoyed. Happy renovations everyone.
M**A
Begeistert
Super Stift, es kommt genügend Farbe raus und die Mine haltet gut. Davor die Marke „Sanjie“ kauft… katastrophe …. Lieber ein teurer Stift als ne ganze Packung billige 👌🏻 Sieht viel schöner aus. Es ist ein Blau/Grau.
A**N
Funciona perfectamente, tono azulon
Fácil de aplicar en la cocina, aunque el color tiene un tono gris azulón. No era exactamente el color que esperaba pero no queda mal.
E**H
Do the job
Work well
M**K
Better than therapy
This was the most incredibly soothing and least frustrating home improvement product I have ever tried. My kitchen gray slate tiles had green (ugh) grout when I bought the place - this made the grout look moldy. I bought the gray pen (slightly lighter than the tiles). It was easy to put on, didn't make a mess and the floor looks a billion times better - and it was really kind of fun. Tips. Really clean the grout first. I scrubbed with a grout brush, vacuumed steamed and then vacuumed again. Probably overkill, but the cleaner it is the better it works. I did a 5X10 ft area with the smaller pen and there was enough left to do a bit more. Shake the pen, then press down on cardboard till the tip is covered in grout. For consistent application, press down again to re-cover the pen at every tile intersection. Drag the pen tip slowly, more like a paint brush , rather than digging into the tiles. I didn't have to mask anything, but have a paper towel ready - cleaning up the wet stuff is easy, once it dries - well, it is grout. Since my pen color was lighter than the original grout color, I let it dry for one day and then vacuumed and did one more coat - that made it look virtually like a professional job. Did I mention that this was totally soothing? Can't speak to longevity yet, but this is so simple and painless and cheap that if it had to bee redone, no problem. If only all my home repairs were like this
F**E
Easy way to make it look great again
Easy to use, did entire bathroom floor with one pen and the same tip, and there's still more fluid left in the pen, so I can use it for further touch ups
Trustpilot
1 month ago
1 week ago