1. First use a lot of clean water to wash the outer surface of the board;
2. Use a soft cloth soaked with detergent diluted with water to wipe the surface of the test board quietly;
3. Use a lot of clean water to wash the board surface to wash away the dirt
4. Check the surface of the board and clean the main points of the local detergent that has not been washed;
5. Rinse the board surface with clean water until the plaster is completely washed away.
Do not clean the excessive board surface (when the temperature exceeds 40°C), because the rapid evaporation of water is harmful to the paint on the board surface!
Please try to use the appropriate detergent, a fundamental principle is: be sure to replace the neutral detergent! Please do not use strong alkaline detergents such as potassium hydroxide, sodium hydroxide or sodium carbonate, strong acid detergents, detergents and baking varnish soluble detergents. It is best to choose a small board before cleaning large areas. Conduct an experiment in front of you and start officially after you acknowledge your safety.
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