How to Clean a Chalkboard or Chalkboard Wall

1. Erase the Chalk

   The first step in thoroughly cleaning a chalkboard wall or smaller chalkboard is to get rid of chalk marks or drawings. Use a chalkboard eraser or a soft cotton cloth. Start at one side and work your way across from the top down using long strokes. Do not work in circles because that will redeposit chalk on the surface.

   Frequently clean the eraser or cloth or replace it with a clean one as you work. This is particularly important for boards that have an excessive amount of chalk on the surface.

2. Prepare a Cleaning Solution

   Pour one gallon of warm water in a clean bucket. Add 1/2 cup of distilled white vinegar. If you are using stronger cleaning vinegar, only add 1/4 cup.

   Warning

   Never use harsh cleaners on chalkboards: They can ruin the finish. If you use the same cleaning bucket for other chores around the house, be sure to rinse it well so that no residue is left to damage the surface of the chalkboard.

3. Wipe Down the Chalkboard

   Dip a soft, cotton cloth in the water and vinegar solution and wring until just damp, not dripping. Start at top of the chalkboard and wipe down the board in long, smooth strokes. By starting at the top, you will catch any drips that may form. Rinse out the cloth frequently as you move across the wall or board.

4. Squeegee Away Excess Cleaning Solution

   Use a window squeegee like the one from Libman to remove excess moisture. Starting at the top of the board, move sideways from one edge to the other in long horizontal strokes. At the opposite edge, use a soft, dry cloth to wipe the blade of the squeegee. Go back to the starting point and make another horizontal stoke just beneath the first one.

   Repeat the steps until you have used the squeegee on the entire surface of the board. Use a dry cloth to capture any drips or excess moisture as you work.

5. Allow the Chalkboard to Air-Dry

   Allow the chalkboard to air-dry thoroughly before it writing or drawing on it. Chalk marks added to a wet board are nearly impossible to remove.

6. Remove Tough Stains

   If crayon marks or food stains appear on the chalkboard, they will need to be removed as soon as possible.

   • To remove crayon marks, make a paste of baking soda and a few drops of water. Dip a sponge or soft cloth in the paste and gently scrub the section of the chalkboard with the marks. Keep moving to a clean area of the cloth as the crayon is transferred off the board. Finish by wiping the area with plain water and allow it to air dry well before using.
   • Remove food splatters as quickly as possible with a clean, damp cloth. If the food left a grease spot, allow the damp board to dry. Cover the grease stain with a thick layer of chalk. Allow it to sit overnight and then erase it away. Repeat until the chalk has absorbed all of the oil.

Tips to Keep a Chalkboard Looking Its Best Longer

Season the Chalkboard

Seasoning a chalkboard with a coating of chalk will help prevent ghosting. The layer of chalk settles into the minute grooves and allows future chalk to erase more easily. This should be done before the board or wall is used for the first time and after every thorough cleaning.

Seasoning is particularly important if you plan to use chalk pens on the board. These are more permanent than chalk and will leave traces behind when cleaned away from an unseasoned chalkboard.

Be sure the board is completely dry before seasoning. If you created a wall with chalkboard paint, it is best to allow the paint to cure for up to one week before seasoning. Use the side of a piece of chalk to completely cover the board from side to side, top to bottom. Wipe away the chalk with an eraser or soft cloth.

Avoid Vigorous Scrubbing

Stay away from gritty or harsh cleaners that can damage the chalkboard surface.