Slime is a stretchy, squishy toy you can make at home from a few common supplies. This basic recipe uses white glue and a simple activator to turn liquid glue into a soft, moldable putty in a few minutes.
What you'll need
- White school glue (PVA)
- Baking soda
- Contact lens saline solution (with boric acid)
- A mixing bowl
- A spoon
- Food coloring (optional)
Step by step
- Pour the glueEmpty about half a cup of white PVA glue into a clean bowl. Clear glue works too if you want a translucent slime.
- Add color and stirDrop in a few drops of food coloring or a pinch of glitter if you like, then stir until the color is even throughout the glue.
- Mix in the baking sodaStir in about half a teaspoon of baking soda. This helps firm up the slime and improves how it holds together.
- Add the saline slowlyAdd saline solution a teaspoon at a time, stirring after each addition. The mixture will start pulling away from the sides of the bowl.
- Knead it by handOnce it clumps together, take it out and knead with your hands. It feels sticky at first but firms up as you work it.
- Adjust the textureIf it is still too sticky, add a tiny bit more saline. If it turns stiff or rubbery, you have added too much, so start over with a little less next time.
Handy tips
- Add activator in small amounts, since you can always add more but cannot easily remove it.
- Store slime in an airtight container or zip bag so it does not dry out.
- Warm the slime in your hands before playing to make it stretchier.
Heads up
- Boric acid and borax can irritate skin and are harmful if swallowed, so keep slime away from young children who put things in their mouths and wash hands after playing.
- Slime can leave residue or stains on fabric and carpet, so play on a wipeable surface.
FAQ
Why is my slime too sticky?
It usually needs more activator. Add saline a few drops at a time and knead well between additions until it stops clinging to your hands.
Can I make slime without borax or saline?
Yes. Some recipes use liquid starch, and simpler no-activator versions use cornstarch and dish soap, though the texture is different and less stretchy.
How long does homemade slime last?
Kept in a sealed container, it typically stays usable for one to two weeks before it dries out or gets grainy.