Flubber is a polymer made by a chemical reaction. Polymers are very long chains of repeating units. When the two solutions are combined, polyvinyl acetate chains (a polymer from the white glue) are linked together in a 3-dimensional arrangement by borate ions (from the Borax) and other chemical bonds. This produces the thick, sticky polymer called Flubber.

You can make flubber at home and find out what happens when:

  • it is stretched?
  • it is rolled into a ball and bounced?
  • it is stretched over the opening of a jar?
  • an object (golf ball, etc.) is rolled on it?
  • or, see what else can you do with flubber?

How to Make Flubber at Home:

The Ingredients
3 cups Warm Water
2 cups Elmer’s White Glue
Liquid Water Color (food coloring stains)
20 Mule Team Borax, available in the grocery store laundry section.
(Please see NOTES section below for safety information about Borax.)
Glitter (optional)
White Vinegar (for cleaning)
The Steps
In a large container combine and mix:
1 ½ cups very warm water
2 cups Elmers white glue
A few drops of water color and/or glitter if using clear glue

Make sure this combination is completely mixed

In a small container combine and mix:
1 1/3 cups very warm water
2 level tsp 20 Mule Team Borax. Adults, please do this step.
(Please see NOTES section below for safety information about Borax.)

Make sure the Borax is completely dissolved.

Combine the glue and borax mixtures:
Mix well using your hands until all the liquid is absorbed. You may need to squish, mix, and break up the flubber to get it fully combined. Store the flubber in a plastic, air-tight container at room temperature. For best results, measure precisely and mix well as noted above.
Notes About Saftey

Adults, please keep the box of powdered borax out of the reach of children. If kept in an airtight container, the Flubber will keep for up to 2 weeks. Vinegar dissolves Flubber from carpet, hair, furniture, clothes, and pets. This recipe makes enough Flubber for six children.

We have the Material Safety Data Sheet (MSDS) on 20 Mule Team Borax available for you to read. Please click the link below to access the important safety information on the product.
Material Safety Data Sheet (MSDS) (PDF)
Liquid watercolor, glitter and gallon containers of glue are available through Discount School Supply and ships quickly.


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