During the use of ceramic tiles, improper use may easily cause surface fouling. Several common methods for treating fouling are as follows:

1. Tea stains, fruit stains, coffee, soy sauce vinegar, leather shoe prints and other stains should be diluted with sodium hypochlorite (bleach), soaked for 20-30 minutes before wiping with a cloth; Some stains that have infiltrated the bricks for a long time require several hours of soaking.

2. Moldy spots formed by ink and anti fouling wax can be diluted with sodium hypochlorite (bleach). When using, simply apply bleach to the stain and soak for a few minutes to wipe it clean. 

3. Cement, scale, rust, and rust spots can be treated with hydrochloric acid or phosphoric acid solution and wiped several times. 

4. Use alkaline cleaning agents or organic solvents (such as ketones and triethylene) to remove paint, oil stains, oily markers, and surface anti fouling wax layers.

5. Usage for cleaning adhesive hammer prints: Soak in 20% -40% sodium hydroxide solution for 24 hours, then wipe clean with a cloth. Then soak in 30% -50% hydrochloric acid solution for 30 minutes and wipe clean with a cloth.  

6. Ice cream uses alkaline cleaning agents.