Hobby - Crafts
By: - at May 3, 2013

How to Make Homemade Sidewalk Chalk

Do your kids love to color outside with sidewalk chalk?  I know mine do!  The only problem with sidewalk chalk is that it can be hard to find and is expensive to purchase in large buckets.  However, you can make your own sidewalk chalk for pennies on the dollar and provide your kids with hours of summer fun.  Listed below is two recipes for sidewalk chalk.  These are very easy to make, so pick your favorite colors and let the fun begin!

little girl playing with chalk

Homemade Cornstarch Sidewalk Chalk Recipe:
This one is my favorite because it is the least expensive to make and non-toxic, but it does take longer to dry.

sidewalk chalkItems Needed:

  • 1 ½ cups of Cornstarch
  • 1 ½ cups of water
  • Molds - anything can be used!  Empty Play Dough containers, egg cartons, Dixie cups, ice cube trays, muffin tins etc.
  • Food coloring - assorted colors.

Simple Instructions For Making the Chalk:
Mix the water and cornstarch together until smooth.  Pour into your molds.  Add 3 or more drops of food coloring to the molds to get the colors you desire and mix well.  Allow 2-3 days for the molds to harden completely.  Pop out your chalk and have some fun!

Some people using this recipe have noticed that mold begins to grow on the chalk before it completely hardens. I am not sure why this is occurring as mine did not develop mold. Be sure to place your chalk in an area of your home that is sunny and warm. Do not place the chalk to dry in a damp or moist area as mold will most surely develop.

sidewalk scribble

If this is an issue for you, you can solve this issue by using the above recipe as sidewalk paint. Mix as directed and do not allow the chalk to harden. Give your children a paint brush and let them have some fun! You can also use the sidewalk chalk recipe for chalk made from plaster of Paris.

Homemade Plaster of Paris Sidewalk Chalk Recipe:

Chalk made in ice cube traysWhat You Will Need:

  • 1 cup plaster of Paris
  • 1 cup water
  • Powdered tempera paint, assorted colors
  • Molds
  • Spoon
  • Mixing bowl

Mix the plaster of Paris and water together in your mixing bowl. Pour the mixture into your molds. Add different colors of powdered tempera paint to each mold and stir until blended and your desired color is reached. Allow the molds to dry for 1-2 days. Once dry, remove the chalk from the molds. If upon removal of the chalk some parts are still moist, allow to air dry for another day.

Final Words
Some people also use toilet paper or paper towel rolls to make chalk sticks.  I find using these to be very time consuming.  You must seal one end on each roll to prevent leaking and coat the inside of the rolls with wax paper to prevent sticking.  However, if you have the patience, they do make great chalk sticks! 

chalk, sidewalk chalk colorful

Using this recipe to make your own chalk is easy and will provide hours of safe summertime fun for you and your children.





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