How To Make Slime: Slime is a unique play material composed of a cross-linked polymer. It is classified as a liquid and is typically made by combining polyvinyl alcohol solutions with borate ions in a large mixing container.
Its main use is for de-stressing but children play with it just because it’s fun to squish and comes in a huge variety of colors, textures, and looks. After that, various things are added to it to make them feel different.
How To Make Slime?
- School Glue
- Borax (Sodium tetraborate)
- Food coloring (optional)
- Two bowls
What You Have To Do:
- In one bowl mix 1 oz. glue (about ¼ of the glue bottle) and ¼ cup water. If you want colored slime, add food coloring to the glue and water mixture. Lift some of the solutions out of the container with the stir stick and note what happens.
- Add ¼ cup of Sodium Tetraborate (Borax) Solution to the glue and water mixture and stir slowly.
- The slime will begin to form immediately. Lift some of the solutions with the stir stick and observe how the consistency has changed from Step 1.
- Stir as much as you can, then dig in and knead it with your hands until it gets less sticky. This is a messy experience but is necessary because it
allows the two compounds to bond completely. Don’t worry about any
leftover water in the bowl; just pour it out.
- When not in use, store the slime in a plastic bag in the fridge to keep it
from growing mold.
The glue has an ingredient called polyvinyl acetate, which is a liquid polymer. The borax links the polyvinyl acetate molecules to each other, creating one large, flexible polymer.
This kind of slime will get stiffer and more like putty the more you play with it. Experiment with different glues to see if they create slime (e.g., carpenter glue, tacky glue, etc.).