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DIY Rubber Slime

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Stretchy, a bit bouncy (not too slimy) and tons of fun to make and play with – this DIY rubber slime is sure to be a hit in your house.

This “recipe” is similar to what some are using for a homemade silly putty. I wouldn’t quite call this silly putty although it’s pretty similar. Silly Putty is more dense than this. I decided to name it Rubber Slime since that’s what it reminded us of.

You’ll need liquid starch, glue (a bit stronger formula than the classroom glue) and food coloring (optional).

Pour some glue into a bowl (this glass bowl I used was very easy to clean up) and add food coloring if you’re using it.

Mix it up well

and then add some liquid starch. Don’t use too much at first until you get a hang of the mixture. Here we have about 1 part glue to 1/2 – 3/4 parts starch

Start mixing.

It will get hard to use a spoon or a stick so you’ll have to start using your hands

The mixture will start changing as the starch and glue mix together. Keep playing with it!

If your mixture starts to look like this but it still a bit sticky you can let it sit for a bit. It will change as you allow it to sit. Mix until it’s no longer sticky (doesn’t make a mess on your hands) and is the consistency you want. If it’s not quite right add a bit more glue or starch. When you’re adding either make sure  you work it a bit and let it sit to mix in.

It’s very forgiving and there wasn’t a perfect mixture just add more glue/starch as needed to get the consistency you like best.

It can be stretched out

or torn

and if you have just the right amount of starch and it’s sat a bit you can even get it to bounce a bit when put into a ball shape.

We tried some different colors (mixing the glue and food coloring was fun)

If you get to this consitency let it sit for a few minute and it may be good for you. It’s not necessarily perfect right when you mix it.

See how it’s sticking just a bit? After it sat for a few minutes it was perfect. I assume that your climate might play a roll as well so do your own experimenting. It’s fun!

It may stick to and stay on some surfaces (like paper towels or fabric or carpet) so be careful. Since it doesn’t feel too sticky kids may be tempted to put it on things that it could stick to lol! Also the color may bleed onto some surfaces. For these it was ok on my white painted wood but left a stain on a poster board. (just giving you a heads up warning since it doesn’t seem as messy as some slime recipes)

A few minutes after the above picture was taken – gravity takes over a bit

So it’s sort of rubbery and slimy – hence our name Rubber Slime. Have fun and if you do it yourself let me know how you like it!

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Allison Waken is a wife, mom of boys and Phoenix, AZ native. She has been creating inspiring content for All for the Boys since 2011. Allison loves travel, movies and spending as much time as possible with her family while she can!

22 Comments

  4. Lex Reply

    Thank you! Winter is coming where I am, so indoor fun stuff like this is going to be key soon! Thanks I'm adding it to my Kiddie Kraft pinterest board!

  8. Nell Reply

    OOooh looks like I hit the jackpot ! 😀 Wait Lucy till I smash you with my new creation. muhahaaa

  10. P Roy Reply

    I just did this with a group of 4th and 5th grade boys and it was a hit! Super easy and super fun! For us grown ups too 🙂

  11. Jess Mom of 5 yr. old Jazz Reply

    I did this same project in 8th grade science. I couldn’t remember how we did it. So thank you very much for posting it. My daughter loves stuff like this. Is there something else you can use instead of the liquid starch. I do remember using the white glue and food coloring but I don’t remember using starch.

    • Allison Waken Post Author Reply

      We tried another version with borax but it didn’t turn out no matter how hard we tried! The simple cornstarch and water is fun to do too!

    • Allison Waken Post Author Reply

      I’m not sure but I don’t think so. It’s not quite the same consistency. It doesn’t hurt to try though if you wanted to!

  14. Shelly Reply

    Do you have any suggestions for storage? My daughter has to make a homemade product as a class project and “sell”it to classmates. (they have fake money to purchase items) so we were thinking of making this, but I wasnt sure how to divide it up and store it properly… the only thing that I can think of is a small ziplock type baggie. Do you have any other ideas ? Thank you for your post! Love this!

  15. Amanda Reply

    You can try keeping it in Easter eggs! Do the stores sell the Liquid Starch?

  16. Krazykasey85 Reply

    It looks awesome

    P.s subscribe to my today
    My YouTube name is krazykasey85

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