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This is slime like you’ve never seen before. No glue… no Borax… no messy mixing… just amazing! Just mix-up the Activator solution and squirt your favorite String Slime color into the liquid. The instant the two liquids touch, you get solid String Slime.
Remove the strings from the bowl and you’re ready to play. Snap the string in half to reveal the gooey center. Just dip the ends into the Activator solution to seal it back up.
You won’t believe your eyes! Best of all, String Slime won’t stain your hands. It’s safe to touch, twist, twirl and explore the science of polymers.
Our special fluorescent colors will blow your mind under blacklight. Collect your favorite colors for the ultimate slime experience.
Explore the science of building polymers by cross-linking long chains of molecules. The process of making String Slime is faster and easier than the classic slime recipe and it happens the very second the two liquids mix. Truly amazing!
This activity is great for all ages. Both String Slime liquid and the Activator powder is safe to use as directed with adult supervision. Use String Slime as an introduction to chemical changes for young children while older children will learn about polymer science through the process of cross-linking long chains of molecules together.
Call: 303-798-2778
Toll Free: 800-223-9080
Monday – Friday
8:30 am – 5:00 pm (MST)
Steve Spangler Science
Denver Office
4400 South Federal Blvd
Englewood, Colorado 80110
Real Science Real Fun 
Question
April –
So one color is $20??
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lisabrooks –
That is correct. Each one will make approximately 32 batches of slime. The tough part is deciding with color(s)!
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Question
Racheal –
Is there a way to get at least a color combo of smaller amounts for $20?
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lisabrooks –
Our development team is planning on making a small multipack of the Super Slime, but it is currently still in the works and probably will not be available for several more months.
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Question
Joyce Russell –
This looks a lot like the “worms” and vampire veins; is it the same experiment in different colors?
Thanks much,
Joyce Russell
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lisabrooks –
It is very similar. The solutions changed a little bit as well as being offered in new, bright colors.
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Question
Patty –
Can the green slime party pump be used to make this with the purchase of the activator solution? I have gallons of the green slime left from our science night. I’d like to do something different with it , other than just make more slime.
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lisabrooks –
The String Slime is a completely different chemical reaction. The activator solution for String Slime will not work for Super Slime.
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Question
Mandi Davis (verified owner) –
I have 3 different classes on different days, will the solution stay good if kept in a glad lock container from day to day or do the chemicals lose effect not long after the solution is mixed?
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lisabrooks –
If you are referencing the unused product, the product will last in the bottles provided, as long as it is stored properly. The product needs to be kept at room temperature. The product should not be frozen or stored where it can get hot. You also need to be careful of germs or bacteria getting into the solutions. This can effect the product. If you follow this, the product will last several months, maybe even a year or more.
If you are referencing the finished product (aka the “worms”), keeping them in a zipper-lock back will help them last longer over a couple of days.
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Question
cwood –
Is there an option to buy just a bottle of the String Slime Liquid? I only need that refilled.
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lisabrooks –
Unfortunately, at this time, we do not offer this option. We will bring it up with our Product Development team to see if this is something we can offer in the future.
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Question
Karen –
How much would I need to make this with 100 kids?
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lisabrooks –
I would recommend 3-4 bottles for 100 kids. I would recommend ordering extra Squirt Bottles to make it easier with a large group of kids. We sell a 5 pack of these bottles for $7.99.
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Question
Lorri –
Does the green color glow in the dark?
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Lisa – Customer Service Manager –
All the colors will be luminescent under a black light, but they do not glow in the dark.
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