Art Recipes: Chalk

Biocolor Street Chalk

  • 1 cup plaster of paris
  • ½ cup cool water
  • 2-3 tablespoons of BIO COLOR

 

  1. Mix 1/3 cup of the cool water with the BIO COLOR
  2. Pour plaster into a disposable container
  3. Using a disposable stirring stick, pour BIO COLOR/water mixture into plaster
  4. Stir well, especially at the bottom of the container (Colors will darken as they dry.)
  5. Add just enough water to wet all of the plaster
  6. Stir well and pour into molds

Suggested molds: 3 oz/5 oz dixie cups, Novelty ice cube trays

Chalk will set in about 30-40 minutes. Then release from molds and let stand for 24 hours. (Leave chalk in dixie cups to cure.)

 

Sidewalk Chalk

  • 2 Cups Water
  • 2 Cups Plaster of Paris
  • 2 Tbsp. Tempera paint
  • Toilet paper tubes with duct tape over one end
  1. Combine and stir together. Let stand a few minutes.
  2. Place tubes on cookie sheet lined with foil or wax paper.
  3. Pour mixture into holders and let stand until semi-firm. Remove holders and let dry completely.
  4. Ready to use in 1 to 1 1/2 hrs. (Reminder, never pour plaster down sink).

 

Eggshell Chalk

  • 4-5 Eggshells
  • 1 tsp. Flour
  • 1 tsp. very hot tap Water
  • Food coloring, optional
  1. Wash & dry eggshells.
  2. Put into bowl and grind into a powder. A mortar and pestle works fine for this. Discard any large pieces.
  3. Place flour and hot water in another bowl and add 1-tablespoon eggshell powder & mix until a paste forms. Add food coloring if desired.
  4. Shape & press mixture firmly into the shape of a chalk stick.
  5. Roll up tightly in a strip of paper towel. Allow drying approximately 3 days until hard.
  6. Remove paper towel & you’ve got chalk! Eggshell chalk is for sidewalks only.
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