How to make silly putty

Silly Putty is a popular toy that has been enjoyed by children and adults for decades. It is a versatile substance that can be stretched, bounced, and molded into various shapes, making it an excellent source of entertainment. In this article, we will guide you through the steps to make your own Silly Putty at home.

How to make silly putty

Materials Needed

  • 100 milliliters of white school glue
  • 50 milliliters of liquid starch
  • Food coloring (optional)
  • Measuring cups
  • Mixing bowl
  • Spoon or spatula

Step-by-Step Instructions

  1. Pour 100 milliliters of white school glue into a mixing bowl.
  2. Add 50 milliliters of liquid starch to the bowl with the glue.
  3. Stir the mixture until it begins to thicken.
  4. If desired, add a few drops of food coloring to the mixture and continue stirring until well combined.
  5. Keep stirring the mixture until it starts to form a ball-like shape and loses its stickiness. This process may take a few minutes.
  6. Remove the Silly Putty from the bowl and place it onto a flat surface.
  7. Knead the Silly Putty for several minutes until it becomes smooth and pliable.
  8. Store your homemade Silly Putty in an airtight container when not in use.

Tips and Tricks

  • If your Silly Putty is too sticky, add more liquid starch to the mixture. If it is too stiff, add more glue.
  • You can also make Silly Putty with other colors by using different food coloring or mixing different colors together.
  • For a glossy finish, add a few drops of baby oil to the mixture before kneading it.

Frequently Asked Questions (FAQs)

Can I make Silly Putty without liquid starch?

Yes, you can make Silly Putty without liquid starch by using borax as a substitute. To do this, mix 1 teaspoon of borax with 1/4 cup of water in a separate bowl. Then, add this solution to the mixture of glue and stir until it forms a ball.

How long does it take for the Silly Putty to form?

The amount of time it takes for the Silly Putty to form will depend on various factors, such as the temperature and humidity in the room. On average, it should take around 5-10 minutes of stirring for the mixture to start forming a ball.

How can I store Silly Putty for later use?

Silly Putty can be stored in an airtight container for later use. This will help to prevent it from drying out and becoming hard. If it does dry out, you can add a few drops of water and knead it back to its original consistency.

Can Silly Putty be harmful to children?

Silly Putty is generally considered safe for children when used as intended. However, it can be a choking hazard for young children, so it is important to supervise them while they are playing with it. If Silly Putty is ingested, it can cause digestive issues, so it is important to keep it out of reach of small children.

Can Silly Putty be used for anything besides playing?

Yes, Silly Putty can be used for various purposes besides playing. It can be used as a stress ball to relieve tension, as a tool for therapy exercises, or as a tool for art and design projects. The versatility of Silly Putty makes it a popular choice for many different applications.


Making your own Silly Putty is a fun and easy activity that can be enjoyed by people of all ages. By following the steps outlined above, you can create a custom toy that can provide hours of entertainment. Give it a try and see what creative shapes and designs you can come up with!

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