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How to Clean Crayon off a Chalkboard with WD-40

Chalkboards are timeless educational tools that foster creativity and learning. However, little Picasso’s stray crayon marks can occasionally find their way onto these classic surfaces. Fear not! With a simple household product like WD-40 and a few easy steps, you can effortlessly restore your chalkboard to its pristine condition. Not only is WD-40 great for cleaning things like getting lip gloss off of clothes, it also works great for removing waxy substances like crayon. In this article, we will guide you through a step-by-step process on how to effectively clean crayon off a chalkboard using WD-40.

Step by step guide to cleaning crayon off of chalkboard

Step 1: Gather the necessary materials

Before you begin the cleaning process, ensure that you have the following items within easy reach:

  • WD-40: This versatile lubricant is available at most hardware stores and supermarkets.
  • Microfiber cloth or sponge: Opt for a soft, non-abrasive cloth or sponge to prevent any scratching or damage to the chalkboard surface.
  • Clean, damp cloth: Keep a separate cloth dampened with water nearby to wipe away any residue after cleaning.

Step 2: Prepare the workspace

Find a well-ventilated area and place the chalkboard on a flat surface. Lay down a protective covering, such as a plastic sheet or old newspaper, to catch any potential drips or overspray from the WD-40.

Step 3: Apply WD-40 to the crayon marks

Shake the can of WD-40 well to ensure the product is thoroughly mixed. Hold the can approximately 6-8 inches away from the chalkboard and lightly spray the affected areas with a generous amount of WD-40. Be careful not to overspray, as this can lead to excessive product buildup.

Step 4: Let it sit

Allow the WD-40 to sit on the crayon marks for about 30 seconds. This will give the solution enough time to penetrate and loosen the crayon wax from the chalkboard surface.

Step 5: Gently scrub the crayon marks

Take your microfiber cloth or sponge and begin gently scrubbing the crayon marks in a circular motion. Apply a moderate amount of pressure to effectively lift the crayon wax without causing damage to the chalkboard. Continue scrubbing until the crayon marks are completely removed.

Step 6: Wipe away residue

Once the crayon marks have been successfully removed, take a clean, damp cloth and wipe down the entire chalkboard surface. This step will help remove any remaining WD-40 residue and ensure a clean finish.

Step 7: Allow the chalkboard to dry

After wiping away the residue, allow the chalkboard to air dry naturally. Avoid using any additional heat sources to expedite the drying process, as this may cause the chalkboard to warp or crack.

Step 8: Recondition the chalkboard

To maintain the longevity and quality of your chalkboard, it’s beneficial to periodically recondition it. Using a clean, dry cloth, apply a small amount of chalkboard conditioner or even regular white chalk to the entire surface. Gently rub the conditioner or chalk in, then wipe away any excess. This step will help prevent future crayon marks from adhering too firmly to the chalkboard.

Clean greasy WD-40 residue on chalkbaord with vinegar

WD-40 can leave behind a greasy oily residue on your chalkboard. While vinegar is not good for cleaning crayon, it is great for removing the residue left behind by WD-40. Simply put some vinegar in a spray bottle and spray down your chalkboard. Let it sit for a couple of mines and come back with a damp rag to wipe it clean.


Cleaning crayon marks off a chalkboard may seem like a daunting task, but with the help of WD-40 and the step-by-step process outlined above, it becomes a straightforward and efficient endeavor. Chalkboards are very different than whiteboards in their surface, so they need a much different solution. Remember to always handle WD-40 in a well-ventilated area and use it sparingly. By following these instructions, you can easily restore your chalkboard to its original condition, ready to inspire and educate once again.