Glazed and sealed tiles have the advantage of being insensitive to acids. Acid cleaning agents remove mortar, lime and cement streaks easily. Instead of expensive special products, some home remedies are also suitable to get rid of dried-on residues and streaks without leaving any residue. A popular drink also works well.
Lime and cement are acid-soluble
A big advantage of soiling with mortar (7.79 € at Amazon *) is the solubility due to acids. To remove dried-on grout and the veil, cleaning with acidic cleaning agents is quick and easy.
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While removing concrete and porous stones can lead to substantial damage, a ceramic glaze keeps away any damage. The only difficulty can be that the tile surface is rough. Then additional mechanical force such as brushing and scrubbing must be applied when using the solvent.
Possible cleaning additives
Any grout that has swelled onto the tiles should be removed as fresh as possible. The mortar can be lifted off easily when it is wet. Remaining marks and streaks on the tile surfaces are wiped away. The following aids can be used in diluted form in the mopping water:
- Vinegar essence
- citric acid
- Cement film remover
- Limescale remover
- Acidic floor cleaners
- Baking soda
- Distilled water (only with lime veil)
Procedure helps to achieve the best possible result
Lime and cement veils form a very thin and at the same time a very unsightly streak and cloud layer. Even on the smooth, glazed surfaces of tiles, you can find microscopic "anchor points" to which you can hold on. Shiny decorative tiles and tiles can destroy and destroy the last binder particles through subsequent polishing.
Repeated cleaning and clear rinsing are the most promising ways to guarantee residue-free removal. Even if no traces can be seen at first after the first cleaning passes through the damp and wet surfaces, at least three passes should be made. Lime-based mortar, in particular, has a habit of only becoming visible after it has dried, similar to limescale stains caused by hard water.Tips & Tricks When using acidic agents generously, make sure that they do not stop in the grooves between the tiles for a long time. Depending on the aggressiveness and dosage, the agents also dissolve the mortar mass in the joints.