UniBond Anti Mould Sealant

Really simple to use and done a brilliant job!

Pens work well if you dab them every so often . Don't press to hard or the rip will just full in on its self. Looks great when done and does go along way doe usage. Some pens can break pretty quick. Always get spares just incase

Old looking, discoloured grouts are white again. The pen is easy to use, compact (in fact, you might misplace it easily). Make sure the grout is clean, moudless and dry first. I cleaned it with some grout cleaner and the dried for a while as well as with a blow dryer to be sure. Just shake it, prime it by pushing it on some cardboard and then gently go over the grout, one even stroke. I did not really press, I coloured the grout and it came out clean, white with not leaks. The tip is not thick and the liquid flows nice and consistent. I couldn't believe it, after all the products I had tried, this one worked. It says to repeat after an hour, but my first pass was already fine. Amazing little product.

The UniBond Grout Reviver Pen is a simple and easy-to-use product designed to refresh discolored grout, giving tiled surfaces a cleaner and brighter look. While it’s a handy tool for minor touch-ups, it may not be a long-term solution for heavily stained or deteriorated grout. Pros: ✅ Quick and Easy Application – The pen-style design makes it convenient to apply without the mess of traditional grout. ✅ Instant Brightening Effect – Works well on lightly stained or faded grout, providing a whiter and fresher appearance. ✅ No Strong Odor – Unlike some grout paints or sealers, this pen has minimal odor, making it more pleasant to use indoors. Cons: ❌ Not Ideal for Deep Stains or Heavy Wear – While effective for surface-level discoloration, it may not fully cover deeper stains or fix cracked/damaged grout. ❌ May Require Multiple Coats – Depending on the grout’s condition, more than one application may be needed for an even finish. ❌ Durability Varies – The effect is not long-lasting in high-moisture areas like showers, where it can fade over time. Verdict: A Handy Touch-Up Tool, but Not a Permanent Fix The UniBond Grout Reviver Pen is a useful, budget-friendly option for quickly refreshing grout in kitchens and bathrooms. However, for deep stains, worn-out grout, or long-term results, re-grouting or using a more durable grout paint might be a better choice. ⭐⭐⭐ (3/5) – Good for quick fixes, but not a lasting solution for heavily stained grout.

I don't normally write reviews but this was genuinelly worth a review. Totally transformed the look of my bathroom. One coat was enough for most of the black areas and all were white by the second coat. Great stuff would recommend.

I picked up the UniBond Grout Reviver Pen to freshen up some tired-looking grout in my bathroom, and overall I’m really pleased with the results. It’s a simple, mess-free way to make tiles look cleaner without a full re-grout. Pros: Easy to use: Just shake, press the tip, and apply—very straightforward with no mixing or prep needed. Instant improvement: Covers discoloured grout well and makes tiles look much fresher and brighter. Precision tip: Allows you to target grout lines without getting too much on the tiles. Quick drying: Dries fairly fast so you’re not waiting around. Compact size: Easy to handle and store, ideal for small jobs or touch-ups. Cons: Small amount (7ml): Doesn’t go very far—fine for small areas but not ideal for a whole bathroom. You may need multiple tubes. Tip can wear down: After a bit of use, the nib can fray which makes application less neat. May need multiple coats: Heavily stained grout might need going over more than once for full coverage. Not a permanent fix: More of a cosmetic refresh than a long-term solution. Overall: A great little product for giving grout a quick refresh without the hassle of redoing it completely. Best suited for small areas or touch-ups, but it really does make a visible difference for minimal effort.

I've used these grout pens before and have been fine, but this one the nib is completely dry, even after leaving nib side down over night, shaking etc... so a waste of money

Pleased with this, easy to use and works well

Para cubrir juntas muy oscuras hay que dar varas pasadas pero va muy bien lo unico que no es muy duradero..osea que da para pocos metros

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.