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🤓😄😦 Flubber may have been a goofy movie with Robin Williams in 1997, but it is also an incredibly goopy craft project that kids will love. Flubber is wiggly, slimy, and gross--what more would any kid want? It's fun and easy to make several different kinds of flubber. Robin Williams would be proud.


Basic Flubber

  • 1 1/4 cup warm water
  • 1 cup any white glue
  • 2 Tablespoons of Borax
  • Food coloring (optional)

Gak (Borax-free Flubber)

  • 1 cup glue
  • 1 cup liquid starch
  • Food coloring

Edible Flubber

  • 1 can (14 oz.) of sweetened condensed milk
  • 1 Tablespoon of cornstarch
  • Food coloring

Method 1
Method 1 of 3:
Making Basic Flubber
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  1. 1
    Mix 3/4 cup of the water with 1 cup glue in a bowl. Stir this mixture until it is thoroughly mixed together. Set it aside.
  2. 2
    Mix 2 tablespoons of Borax with a 1/2 cup of water in a separate bowl. Mix thoroughly until all of the Borax is dissolved.
  3. 3
    Combine the two mixtures. Stir them together. Add several drops of food colouring until the mixture is the colour you want it to be.
  4. 4
    Put the mixture in a plastic bag with a good seal. Close the bag, making sure it is tightly closed. Knead the mixture for a few minutes and your flubber will be done. You can store the flubber in the bag you mix it in.
  5. 5
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Method 2
Method 2 of 3:
Making Gak (Borax-free Flubber)
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  1. 1
    Pour 1 cup of white glue into a bowl. Add several drops of food colouring until it is the desired colour.
  2. 2
    Pour 1 cup of liquid starch into the glue mixture. Stir thoroughly. When the glue and liquid starch start to mix, they should become very thick.
  3. 3
    Mix more starch in if it seems too sticky. The starch is what makes the glue stretchy rather than sticky. Be aware that Gak will stick to clothes and carpets, but it comes out very easily with a little warm water and some scrubbing.
  4. 4
    Store Gak in a container with a good lid.
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Method 3
Method 3 of 3:
Making Edible Flubber
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  1. 1
    Pour one can (14 oz.) of sweetened condensed milk into a saucepan. Turn the stove on to a low heat.
  2. 2
    Add one tablespoon of cornstarch to the saucepan. Stir the mixture over a low heat.
  3. 3
    Remove the saucepan from the heat when the mixture starts to thicken. Add drops of food colouring until the edible flubber is the colour you want it to be. Stir the mixture.
  4. 4
    Allow the mixture to cool before you play (or eat) it. Be aware that edible flubber can stain light colored clothing and carpets. It should come out with warm water and detergent.
  5. 5
    Store edible flubber in a container or seal-able plastic bag.
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Community Q&A

Add New Question
  • Question
    Will it last a week?
    Community Answer
    Yes! It can even last up to a year (or longer) as long as it's in a sealed container.
  • Question
    Is there any other way to make slime without starch or borax?
    Community Answer
    You can try using a thick soap. Put it in the fridge for an hour or in the freezer for 10 minutes and it will look like slime.
  • Question
    Can I use laundry detergent instead of liquid starch?
    Community Answer
    Yes, but it will smell like detergent, and make you smell like detergent too!
See more answers

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      • Borax is toxic. Do not ingest, and ensure that any children do not. Supervise children while making Flubber with Borax.

      About This Article

      Tested by:
      wikiHow Video Team
      wikiHow is a “wiki,” similar to Wikipedia, which means that many of our articles are co-written by multiple authors. To create this article, 67 people, some anonymous, worked to edit and improve it over time. This article has been viewed 669,041 times.
      16 votes - 75%
      Co-authors: 67
      Updated: May 16, 2021
      Views: 669,041
      Categories: Hobbies and Crafts
      Article SummaryX

      To make basic flubber, mix together 3/4 cup (175ml) of water and 1 cup (240ml) of white school glue in a bowl. Next, mix 2 tablespoons of Borax with 1/2 cup (120 ml) of water in a separate bowl until all of the Borax dissolves. Then, combine both mixtures together in one bowl and stir thoroughly. Add several drops of food coloring until you get the color you want. Then, put the mixture in a plastic bag and seal it tightly. Knead the mixture for a few minutes. Then take your flubber out of the bag and it's ready to use!

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      Thanks to all authors for creating a page that has been read 669,041 times.

      Reader Success Stories

      • Anonymous

        Sep 15, 2016

        "I am very glad that in here you said to put extra starch if too sticky, because a lot of people don't know what to..." more
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