Glow In The Dark Slime

Halloween is coming and while browsing at our local store they had tons of glow in the dark items. Halloween is perfect for glow in the dark. Then my son asked… do you think we could make glow in the dark slime? It would be perfect for a party!

Challenge accepted! One batch of glow in the dark slime, coming up!

Glow in the dark slime - an easy recipe with amazing results! Perfect for an after dark party or a fun new twist to sensory play time.

Making glow in the dark slime is insanely easy, and it makes a really nice change from our usual slimes. Especially at this time of year when the kids are all about glow in the dark stuff.

Supplies for Glow In The Dark Slime

Elmer’s White Glue
Buffered Saline Solution
Baking Soda
Glow In The Dark Paint (nontoxic)
Glow in the dark accessories – we used spiders and eyeballs
Bowl
Spoon
Black light

 Elmer’s Liquid School Glue buffered saline Baking Soda glow in the dark paint Black light

Curious about why we use saline and baking soda to make our slime? All the details are here, but in a nutshell, we live in Canada where we can’t access liquid starch and our government has advised us to limit the use of borax powder around kids. I also have health issues that are aggravated by borax powder. This recipe is super easy and makes insanely stretchy slime that has a wonderful texture.

Glow in the dark slime - an easy recipe with amazing results! Perfect for an after dark party or a fun new twist to sensory play time.

How to Make Glow In The Dark Slime

Add one bottle of glue to your bowl. How much glue you use is extremely forgiving. We buy our glue in bulk and use a nice sized “gloop” of glue. It’s probably around 4 to 6 oz. Add a 1/4 teaspoon of baking soda. Mix well. Add 4 to 6 tablespoons of glow in the dark paint. Mix well.

Add a squirt of the buffered saline. Mix well. Add another squirt. Continue mixing. Once it starts to get stringy and pull together, start adding only a couple of drops of saline, and mixing well. Once it is pulling together, add some saline to your hands and start mixing and kneading it with your hands.

Glow in the dark slime - an easy recipe with amazing results! Perfect for an after dark party or a fun new twist to sensory play time.

If you over do the saline it will become stiff and prone to breaking. Slow and steady with the saline with lots of mixing is important!

Once you have a nice stretchy slime you can add some accessories. We found some fun spiders and eyeballs.

Now head into a dark room. Your slime should start glowing immediately. To really turn up the glow fun use a blacklight (also known as a UV light), this will really help your slime GLOW!

For an extra fun twist, dress the kids in some reflective clothing, neon or white for extra glow fun under the black light.

Glow in the dark slime - an easy recipe with amazing results! Perfect for an after dark party or a fun new twist to sensory play time.

Now play!

This slime was extra fluffy due to the amount of paint we added. It made for a really cool texture that was a lot of fun to play with. The kids can’t wait to set this one up at a Halloween party!

Glow in the dark slime - an easy recipe with amazing results! Perfect for an after dark party or a fun new twist to sensory play time.


MORE HALLOWEEN FUN FROM STEAM POWERED FAMILY

Love Halloween? Love STEM? Celebrate the countdown to Halloween with our 31 Days of Halloween STEM Activities. A little Halloween STEM for every day!

Glow in the dark slime - an easy recipe with amazing results! Perfect for an after dark party or a fun new twist to sensory play time.