Black Slime Recipe with Glitter Glue

Make an easy black slime recipe with glitter glue and liquid starch! This stretchy two-ingredient slime is quick to mix up and makes a fun Halloween science activity.

Keep it completely black or make a second batch in orange, purple, or green and swirl the colors together for a spooky seasonal slime.

Black glitter slime recipe made with glitter glue for Halloween

Easy Black Glitter Slime

Field: Chemistry
Grades: K–5
Concepts: Polymers, mixtures, viscosity, chemical reactions

Using black glitter glue makes this recipe especially simple because the color and glitter are already mixed in.

👉 The base is one of our easiest homemade slime recipes and only requires two main ingredients.

Supplies

1/2 cup black washable glitter glue
1/8 to 1/4 cup liquid starch
Bowl
Spoon

Optional: Orange, purple, or green glitter glue for a second batch.

How to Make Black Slime

STEP 1: Add 1/2 cup of black glitter glue to a bowl.

STEP 2: Begin adding liquid starch a little at a time.

🔎 Start with about 1/8 cup and stir well.

STEP 3: Continue stirring until the slime starts pulling away from the sides of the bowl.

STEP 4: Knead the slime with your hands until it reaches the consistency you want.

💡 If your slime still feels sticky, add just a little more liquid starch. Be careful not to add too much or the slime can become stiff and rubbery.

Make Black and Orange Halloween Slime

Want to turn your black slime into a Halloween color combination? Make a second batch using orange glitter glue, then stretch pieces of the orange and black slime next to each other.

🔎 Twist or swirl the colors together.

You can also try black with purple, neon green, or another favorite Halloween color.

Why Does Slime Work?

Slime is a fun chemistry activity because you can actually see and feel a material change happen.

Washable school glue contains long chains of molecules called polymers. Liquid starch acts as a slime activator and allows those chains to begin linking together.

This process is called cross-linking.

As the polymer chains connect, the glue changes from a runny liquid into stretchy slime.

Slime is also often described as a non-Newtonian fluid because it behaves differently depending on how you handle it.

👉 Learn more with our slime science for kids.

Black Slime Tips

Slime too sticky?
Knead it first. If needed, add a very small amount of liquid starch.

Slime too stiff?
Too much activator can make slime rubbery, so add liquid starch gradually.

Can I make black slime without glitter glue?
Yes. Use clear or white school glue with black food coloring and glitter, then follow one of our basic slime recipes.

Can I use another activator?
Yes. You can also try a saline solution slime recipe or borax slime recipe.

How to Store Slime

Store your black slime in a reusable plastic or glass container with a tight-fitting lid. Keeping slime clean and covered between uses will help it last longer.