We use this general recipe:

Mix thoroughly

In a separate bowl, mix thoroughly:

  • 1 1/3 cups very warm water
  • 2 level teaspoons Borax

Mix the contents of the two bowls together kneading until it is fully combined. Discard any remaining liquid.

( found at

We have a solution of borax and water premade in a gallon liquid container and they mix it up with the other ingredients.  Instead of “kneading”, we have them mix the solution in a large cup with craft sticks.  Buy the elmers glue in large containers from office supply store instead of messing with individual small bottles.  Also, we provide small ziplock bags to keep their gak in. 

A few things to keep in mind:

  1. Be careful with any food coloring.  We generally have staff add the food coloring a few drops at a time.
  2. Borax can be dangerous if someone eats it or it gets in their eyes.  They should be warned not to eat food without washing hands after playing with the gak.
  3. It seems messy at times, but when the solution dries it is really easy to clean up as it turns into solid flakes.  We use cheap table cloths to cover the tables. 

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