How to Make Sidewalk Chalk

Get creative and make your own sidewalk chalk! Homemade sidewalk chalk is easy to make and it's a lot of fun to draw with!

Active Time15

Drying Time8

Total Time8 15

Yield: pieces of sidewalk chalk

Author: Debbie Chapman

Cost: $2

Pour the cold water into a large (12 to 16 ounce) disposable cup.
Add the paint into the water.
You can measure the paint or just eyeball it, like we did after our first batch. You want the colour to be quite dark in the water, since it will lighten up a lot once the plaster is added.
Use a large popsicle stick to stir the paint into the water, mixing well.
Add the Plaster of Paris into the coloured water 1 little bit at a time.
Allow the plaster to sink into the liquid before adding more. Don't stir yet.
Repeat until you've added all of the Plaster of Paris. Then use the popsicle stick to stir slowly and gently.
Continue until everything is well combined, with no white spots remaining.

Pour or scoop the mixture into a clean and dry mold.
Use the popsicle stick to ensure there aren't any air bubbles at the bottom of the mold, and to smooth out the tops as best you can.
It's okay if the mixture overflows the molds a little bit. When you remove the chalk the excess will crumble away.
Repeat, filling as many spots of the mold as you can and allow to dry/harden.
This can take anywhere from a few hours to 24 hours (read more about this below).

Carefully remove the chalk from the mold. Push up on the bottom gently.
If your mold is fully silicone you can stretch the mold out a lot easier.
Continue pushing up until you can cleanly remove the chalk from the mold.
Your DIY sidewalk chalk is complete!
Repeat, making as many colours as you'd like.
Now have fun drawing outside, making all kinds of cool designs!

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