VIDEO: How to remove white stains from cobblestones
You have probably tried a lot to remove these white spots. If these attempts have not been crowned with success, you will receive suggestions below on how to bring your paving stones back to a new shine.
The causes of white spots on cobblestones
If you discover white spots on your paving stones, there could be two causes.
- On the one hand, so-called lichens can be the reason. These establish a connection from Seaweed and mushrooms, which have the property of connecting to the respective subsurface, here porous concrete block.
- On the other hand, it can be mineral efflorescence. These are caused by the fact that lime or other minerals are carried to the surface by rising damp. However, such spots usually disappear on their own after a certain time.
Eliminate the stains
Before you use the following agent, you should test it on an inconspicuous area for its compatibility with your paving stones. Only then can you start cleaning.
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- Work with a saltpetre remover. First of all, you need to thoroughly wet your paving stones.
- Then apply the agent. This must now act for a few minutes.
- You can then try to remove the white spots with a scrubber. However, it is better to use a high-pressure cleaner.
Always work in sections, otherwise it could be difficult - especially if some parts of your paving stones have dried up again.
