How To Make Cement Magnets Using Ready-Mix Concrete

Do you have a bag of ready-made concrete that you’ve been storing for ages? If so, you don’t need to wait until you find a crack in your patio or driveway to use it. Instead, turn your concrete mix into unique cement magnets to brighten up your kitchen.

What You Need:

  • Concrete mix
  • Water
  • Bucket
  • Paint stick
  • Silicone ice cube tray — in shapes of your choice
  • 1-cup measuring cup
  • Magnets
  • Sandpaper
  • Colored chalk — in colors of your choice
  • Modge Podge
  • Foam paint brush


  1. Pour your ready-mix concrete and water into the bucket in the increments indicated on your package of concrete mix.
  2. Use the paint stick to stir the water and concrete mix until it’s completely mixed together. You should have a mixture that is a slightly thicker consistency than pancake batter.
  3. Set the silicone ice cube tray on the ground next to the bucket.
  4. Use the measuring cup to scoop to scoop the wet concrete out of the bucket. Then, pour the mixture into the compartments of your silicone ice cube tray. Repeat the process until each compartment is approximately half full.
  5. Pick up and set down your silicone ice cube tray a couple of times to level out the concrete mix.
  6. Look at the compartments to make sure they are all filled to approximately the same level. If not, use the measuring spoon to add a little more concrete where needed. Then, repeat the lifting and setting down process to level out the concrete in each compartment again. Repeat until the compartments look like they are filled to a similar level.
  7. Wait for the concrete to begin setting. When it starts to set, but is still pliable push a magnet into the center of each compartment. Make sure to leave the top part of the magnet poking out of the concrete mixture.
  8. Review the instructions on your package of ready-mix concrete to find the mixture’s setting time. If a setting time isn’t specifically indicated in the instructions, let the mixture set for at least eight hours.
  9. Once the concrete is fully set, pop the magnets out of the compartments.
  10. Use sandpaper to smooth out the bottom edges of each magnet.
  11. Set the magnets face up on the table, and use your colored chalk to decorate each one.
  12. Use the foam paint brush to cover each magnet with a coat of Modge Podge, according to the instructions on the bottle, to seal the chalk so that it doesn’t fade. Allow the Modge Podge to dry completely.

You can use ready-mix concrete in several ways. However, using your concrete mixture to create fun, themed magnets is a great weekend project that you can complete with your kids or by yourself — and it adds a unique touch to your kitchen.

If you need ready-mix cement supplies for a small project like this or a larger one, one company to contact is Robar Enterprises Inc.

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