Flubber is a homemade version of silly putty. It’s cold, slimy, a solid that flows and incredibly fun to poke, stretch and play around with. Especially for those tactile loving kids!! And it’s a nice break from playdough.
You will need 1 1/2 cups warm water
2 cups white glue
1 1/3 cups warm water
3 tsp Borax
food coloring
mixing bowl and spoon
This could get messy –so be prepared
In a large tubby combine food coloring, glue and 1 1/2 cups warm water
In a smaller container, combine 1 1/3 cups warm water and Borax. Mix ingredients in each container thoroughly.
Pour contents of smaller container into larger container. Gently lift and turn the mixture with a metal spoon until only about a tablespoon of liquid is left.
Flubber will be sticky for a moment or two. Let the excess liquid drip off-then it is ready. Stretch it, bounce it, roll it!
Flubber is an example of a non-Newtonian substance-appears to be a liquid and a solid at the same time. Here is some science behind it.
Store tightly covered for up to 3 weeks.










we make this all the time. so easy and it keeps the kids entertained for hours!!
Just a side note after making this 100′s of times over the years, don’t use “school glue” it’s different then regular all purpose Elmers glue and it causes the flubber to be crumbly instead of gooey and slimy.
It took me forever to figure out what had gone wrong with our flubber.