The specific cleaning steps of aluminium sheet are as follows:
1. Wash the surface of the board with plenty of clean water first.
2. Use a soft cloth soaked with water-diluted detergent to gently wipe the surface of the test board; 3. Wash the surface of the test board with plenty of clean water to wash away the dirt;
4. Check the surface of the board, and focus on cleaning with detergent where it is not clean. 5. Rinse the board with clean water until all the detergents are washed away.
Caution: Do not clean the hot surface (when the temperature is over 40 C), because the volatilization of excessive moisture is harmful to the surface paint!
Particular attention should be paid to the selection of appropriate detergents, a basic principle is: neutral detergents must be selected! Do not use strong alkaline detergents such as potassium hydroxide, sodium hydroxide or sodium carbonate, strong acid detergents, abrasive detergents and paint soluble detergents.