ᐅ The joint is not anthracite but partially gray?

Created on: 18 Dec 2015 14:55
M
Micha78
Hello everyone,

We need your advice and support regarding the grout on the ground floor of our house.

On our ground floor, tiles from the company Caesar, Easy Root Nacciola were installed.

The grout used was a flexible grout in anthracite. Overall, the floor looks really great.

However, in some areas, the flexible grout is not anthracite but rather a light gray. The tiler told us back then that this was cement residue (or dirt or dust from the house construction) and that it would fade over time. We were advised to clean the tiles thoroughly with a cement residue remover, which should solve the problem.

Unfortunately, a few spots are still gray.

So I wanted to ask if you have had similar experiences and how you managed to remove the residue from the grout. Maybe with a special grout cleaner or a steam cleaner?

I had also briefly considered using grout colorant to make everything uniform, but I’m afraid it might go wrong or not look good.

I’m looking forward to exchanging ideas with you and to any tips or advice. I can send photos if needed.

Best regards,
Micha
Y
ypg
26 Dec 2015 23:20
Micha78 schrieb:
Sorry, but the grout lines are definitely different in their color

Yes, you are right. But the tiles also seem to be two different types: the second photo has a different color temperature and is more saturated. Therefore, the grout lines will naturally look differently as well – so photo 1 and photo 2 cannot be compared directly.
schubert7927 Dec 2015 13:21
The tiles are different.
EveundGerd27 Dec 2015 21:57
Are the tiles actually different, or do the pictures give a false impression? Were the tiles installed in more than one room?
Y
ypg
27 Dec 2015 22:43
The tiles are the same, but unfortunately the photos were taken under different lighting conditions, which is why the grout lines also appear different.
K
Kikolool
28 Dec 2015 13:12
I have the same problem. The grout or its pigments have not distributed evenly. There is nothing you can do except use a grout refresher. We will be doing that in January. It looks just like in the OP’s pictures, only even more "spotty." Unfortunately, the refresher will darken everything (we wanted lighter grout), but at least the appearance should be uniform and consistent afterward.
M
Micha78
19 Jan 2016 20:35
Good evening, what exactly is a "joint refresher"?

I would like to have dark, uniform grout lines.

Do you have a product recommendation for me?