Introduction: How to Make Slime Without Borax

Picture of How to Make Slime Without Borax

I've been playing with slime recipes recently, and I have to say this is my favorite one so far! This slime is fool-proof - I've never had a batch fail on me. It's stretchy and squishy and all the things that slime should be. :D

Also, this slime is borax-free! (Great for those who are worried about using borax in something that will be touched so much with bare skin.) It's also made with two common things found in many homes: baking soda and saline contact solution!

The base of this slime recipe is Elmer's clear school glue, which is easy to find online if your local stores are out of it. (I know mine have been!)

Step 1: Tools + Ingredients

Picture of Tools + Ingredients


Double check that the saline contact solution you're using has boric acid as an ingredient, otherwise the recipe will not work.


  • Bowl for mixing
  • Measuring spoons
  • Spoon for mixing
  • Small air-tight container for storing (optional)

Step 2: Combine the Glue and Baking Soda

Picture of Combine the Glue and Baking Soda

In a small bowl, stir together the glue and the baking soda. Make sure the baking soda is entirely incorporated - there should be no dry bits left. The mix will look fairly cloudy.

Step 3: Add Food Coloring

Picture of Add Food Coloring

Add a couple drops of food coloring and mix. Add more as needed to reach the color you want!

Step 4: Add the Contact Solution

Picture of Add the Contact Solution

Add one teaspoon of contact solution and stir well. The mix will start to become really sticky - stringing from the sides of the bowl and getting stuck to the spoon.

Add the second teaspoon slowly, stirring constantly. As soon as the mix starts to pull together and come away from the sides of the bowl, you've added enough!

At this point, you should have a slightly sticky lump of slime. :D

Step 5: Knead for 2-3 Minutes

Picture of Knead for 2-3 Minutes

When you first remove the slime from the bowl, it will be sticky and thin. To remedy this, you've got to knead it!

Work the slime between your hands and on a clean surface - stretching and compressing it. This will help it become less sticky, softer, and also allow it to stretch properly.

Once it's nice and stretchy, you're ready to play with it!

Step 6: Tip: Easy Clean Up

Picture of Tip: Easy Clean Up

The slime sticks to itself like crazy, so you can use the blob of slime to clean up your bowl and spoon. Press the slime against any bits left and they will come away cleanly. :)

Step 7: Storing the Slime

Picture of Storing the Slime

This slime can be played with multiple times as long as you store it in an air tight container! As it ages, it will lose elasticity, but it's possible to knead it and bring some of it back.

You may find that it releases a bit of liquid as it's stored - knead that back in and you'll have nice stretchy slime again in no time. If the slime snaps when stretched, kneading will help make it softer again too!

Enjoy your slime!

P.S. I'd love to see pictures if you make it! :D


Chrisideas (author)2017-06-16

As a teacher of over 35 years I have made this slime stuff before it was ever on anyones radar. I use white or clear school glue and liquid starch and that is all. ( maybe some food coloring)

SharonE48 (author)Chrisideas2018-01-10

Now that's Better recipe!

bhernandez107 (author)2017-11-13

I dont have those ingreadients can you bring them to school called William Penn Elementary school at chicago illinois

gndsmile (author)2017-06-26

Pretty good...I made 3 batches only thing is all 3 turned out different... oh well still works pretty good!!!

diagirl1000 (author)2017-06-23


BrianO54 (author)2017-06-20

Does the food coloring stain?

jessyratfink (author)BrianO542017-06-21

Nope! I haven't had any color transfer on hands, surfaces or storage containers. It holds glitter in well, too. :)

vbanaszak (author)2017-06-18

I think the main problem with Borax powder is getting it to dissolve. Besides, the contact solution is already liquid and comes in contact with peoples eyes and so should be safe to use with your hands especially in such a tiny amount.

RichardJ117 (author)2017-06-18

I made this with a grand and it sure didn't look like yours. Don't the amount of ingredients u used but only had a half cup finished product. I must have kneaded it for 7-8 mins and she did more. Finally it set up and I ended up with abt 1/2 cup of slime. Don't know if it was worth all that. Tks sue

SylviaK13 (author)2017-06-17

My 6 year old enjoyed making it. I guess one generation's "Silly Putty" is another generation's "Slime"! Thanks for the tips.

CPUDOCTHE1. (author)2017-06-16

So, instead of using sodium borate, you are making sodium borate in the plastic container?

chemteach3 (author)2017-06-15

You can also use liquid laundry starch to avoid any contact with borax or boric acid

LoveBugSammy2 (author)chemteach32017-06-15

You know how slime works right? So laundry detergent DOES in fact have borate or something like that in it for it to work.

Poppyburner (author)chemteach32017-06-15

All such recipes I've seen online DO feature borax among the laundry starch's ingredients.

mikeasaurus (author)2017-06-14

This is just the prank I've been looking for :) I wonder how well it mails

chevalrouge (author)mikeasaurus2017-06-15

I would not use a return address.

seamster (author)chevalrouge2017-06-15

It's okay. I know his address and could get him back!

goldenskyhook (author)2017-06-15

Great recipe, but just to point out, "boric acid" IS borax. so this isn't actually "without borax." Probably harmless anyway.

experilab (author)2017-06-15

Can you perhaps explain the worry about slime made with borax? I was always under the impression that, once the polymerization process has happened, the (very weak) borax solution does not pose any threat to the user. I have had many tens of thousand of kids over the past 15 years make slime during workshops without a single incident of sensitivity to the slime. Also, borax is not listed as a possible carcinogen etc.

jessyratfink (author)experilab2017-06-15

I honestly don't get it - most of it is due from misinformation. I have read a few things online from parents warning about sensitivity to the Borax powder, but it doesn't seem to be very common at all.

Snopes actually published a good article about it if you're interested!

experilab (author)2017-06-15

I would guess this is the formula involved: H3BO3 (Boric Acid) + 3NaHCO3 (Sodium Bicarbonate) = 3CO2 + Na3BO3 (Trisodium borate) + 3H2O.

Can anyone shed some light on the safety of the Na3BO3?

SirCooksalot (author)experilab2017-06-15

Na3BO? Super safe as long it's programmed correctly. That's C3PO's lesser known cousin. It was actually a front loader washing machine drone, that also did some ironing. Obviously, the chemical structure of boric acid is styled after the original washer drone, c3PO's grandfather - H3BO.

gravityisweak (author)2017-06-15

This is a great slime recipe. I've also seen some exactly the same just with shaving cream added, for a fluffy slime! Wondering if you've tried any of those?

I'm working on fluffy slime right now! Hoping to have a recipe up for it soon. :)

ian_m (author)2017-06-15

Hmmm. Mixing boric acid (acid) and baking soda (sodium hydrogen carbonate) makes a substance called sodium borate...which is usually called borax !!!

So hardy borax free.

AriaJ2 (author)ian_m2017-06-15

Yes, it does still have borax in it, but saline solution is meant to be in contact with your skin. Also, I think she meant borax POWDER, not borax in general. If you want a truly borax free slime with 100% no borax, check out this video ---> . Boom. No borax for the picky people. :D (This comment waas not meant to offend or insult anyone in any way)

AriaJ2 (author)AriaJ22017-06-15


sngillis (author)2017-06-15

"2 teaspoons saline contact solution (needs to contain boric acid)"

If it contains boric acid, it still contains borax, or, more specifically, Boron.
IOW, check the chemistry and make sure you have eliminated the acidic molecules that can cause irritation and burning, or at least diluted them enough that skin can handle it.

gravityisweak (author)sngillis2017-06-15

I'm not a chemist but my understanding was that the borax was responsible for some people's sensitivity, not specifically the boron.

isychia (author)2017-06-14

Thank you, I've been wanting to try this with my son, but have been hesitant to make the recipes that contain Borax.

Penolopy Bulnick (author)2017-06-14

That's awesome! It's crazy that that's made of glue :)

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