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Maintain stone walls
Walls or floors, natural stone coverings must be cleaned regularly in order to keep them intact for as long as possible. First of all, you can start by using a vacuum cleaner to get rid of the dust and soot accumulated in the stone.
Then you can clean the nooks using a hard nylon brush. For more effective cleaning, consider soaking the brush in a solution of warm water and baking soda or soda crystals. Black soap is also very effective in cleaning old stones! If, despite all your attempts, your stone walls remain dirty, all you have to do is call a professional to clean them with a grinder. In all cases, since natural stones are quite porous, it is important to protect them with anti-stain and waterproofing products.
When it comes to exterior walls, there are three cleaning techniques to choose from: the high-pressure cleaner, sandblasting and laser cleaning. Once again, let the specialists do it and do not venture into such a big maneuver without knowing what you are doing.
The right solution for each task
Do you want to clean stains embedded in stone? There are cleaning tips depending on the origin of the tasks. To remove grease, for example, just apply an absorbent cloth over which you can pass an iron. The heat will absorb the stain on the fabric.
If your tasks are of limestone or acidic origins, you can help yourself with a little vinegar. Please note that vinegar must be handled with care as it is corrosive. This is why you should always rinse the stones well after using anti-limescale products.
Finally, mold-related tasks must be disinfected quickly. You can use a mixture of water and bleach but again, you should rinse the stones well after your cleaning session is over.
What to avoid absolutely
To avoid damaging the stone of your coatings, certain products or tools are to be banned! This is the case with the steam cleaner. Far too powerful, it tends to attack the joints and therefore lets impurities enter more easily. Likewise, it is not recommended to use bleach on any stone. Learn about the characteristics of your stone before committing an odd! Our advice: spray the bleach on a cold, not hot stone. For outdoor use, wait until sunset so that the stones can cool down ...