One、Can external wall brick be cleaned with hydrochloric acid?
Hydrochloric acid should not be used to clean exterior solid bricks. It will severely corrode the structure of the exterior wall, causing significant damage. When cleaning exterior solid bricks, using oxalic acid is preferable to hydrochloric acid due to the difference in acidity. You can also purchase cleaning agents specifically designed for tiles from local suppliers.
Two. Should you use malic acid or hydrochloric acid to clean the exterior wall bricks?
1、Use citric acid, as citric acid is a weak acid that poses minimal harm to the human body and does not damage tiles. Furthermore, citric acid is inexpensive and widely used in construction sites.
2. Using strong acids like hydrochloric acid can easily cause tiles to discolor. Hydrochloric acid needs to be diluted before use, and handling, storage, and preparation must be done with extreme caution to avoid accidents. Typically, the concentration should be diluted to 5% or less, and for personal safety, it is recommended to wear acid-resistant gloves.
Three. Using oxalic acid to clean through-body bricks.
1、First, prepare the lye solution. Then, apply it liberally to the tiles that need cleaning.
2、Please wait for a while, approximately 5 minutes, to allow the acid and the substances on the tiles to fully react.
3. Subsequently, thoroughly clean the tiles with a new toilet brush.
4. Finally, rinse the tiles with water to remove any remaining lime, ensuring complete removal.
Maintaining and cleaning tiles involves not only regular cleaning but also daily care. It is important to avoid using sharp objects or striking tiles, as this can cause damage. If marks or imperfections occur on the tiles, they should be repaired promptly, as further damage will make them difficult to fix.