ᐅ Cleaning and sealing concrete slabs using products from Godelmann

On my terrace, there are light-colored concrete slabs from the company Godelmann. Brown stains have formed on the surface due to falling leaves (walnut leaves).
Now I am considering buying the "Godelmann-Kraftreiniger" and then sealing the slabs with "Steinschutz perfekt." How effective are these products, and how long does such a sealant typically last?

The dyes from walnut leaves are highly staining; considering that concrete slabs absorb moisture (including colored moisture), the discoloration may have already penetrated deeply. Just try the cleaning method described— it won’t make things worse.

My neighbor has the same problem and also has these types of panels. It looks really unpleasant, and he managed to clean it somewhat using a steam cleaner. He also used a mild cleaning agent. But whether it stays clean for long is the question.

Using a steam cleaner will not maintain cleanliness for long. Even with Godelmann’s products, the surfaces do not stay clean permanently. They even mention this in their product description. Sealing also does not last forever, but it does provide better protection.

Hello,

So this special cleaner from Godelmann is definitely better than doing nothing. Of course, it’s not a long-term solution, but there isn’t anything like it available anywhere else.

I had the same problem, and this helped for the time being. Visually, it looked much better than before. 😉

Best regards

I have read the posts here before and also got this special cleaner from Godelmann. I am not completely satisfied, though. I need to look for other options.