Which is why most recipes contain both glue and borax (or a borax containing ingredient, like contact lens solution).Īny recipe you try without a form of glue and activator is going to result in a slime that’s more dough-like instead of goopy and stretchy. You typically need both glue and activator to create the chemical reaction that creates slime. Can I make regular stretchy slime without glue? The borate ions stop the polymers from flowing as easily as they did by themselves and it forms the more rubbery consistency that we call slime. Polymers on their own act like a liquid, sliding and moving past each other.īorax contains borate ions, and when borax combines with glue, the borate ions and polymer molecules become linked. Glue contains flexible molecules called polymers. Most slime forms because of a reaction between glue and some form of borax.
Why do most slimes have glue in their recipes?
We accidentally added too much conditioner to ours and ended up having to add more corn starch to make it less sticky. Just make sure you add very small amounts of conditioner at a time and knead it in. To bring it back to the smoother slime consistency we added more conditioner to soften it up and it was good as new! The time it lasts will depend on how clean your surfaces and hands are when you play with it.Īfter about 2 weeks our slime dried out a bit and turned more play dough like. Use your best judgement and if it smells or feels off, throw it away. If you store your slime in plastic wrap and keep it inside a plastic Ziploc bag it should last for a few weeks. (It helps to have someone close by who can pour the cornstarch on for you!) How long does this slime last? If your hands are completely covered in sticky goo, you’ll need to add cornstarch 1 tablespoon at a time until the mixture thickens up. Our recipe is a starting point, but you’ll need to add more (or less) corn starch depending on the water content in your conditioner. If your slime is really sticky you need to add more cornstarch. If it’s a sticky mess, keep adding corn starch and kneading it in until it’s more dough like. You’ll have a bit of residue on your hands after playing with it, but it shouldn’t stick all over your hands. The consistency of your slime should be similar to play dough, but it will be shinier, softer, and a little more stretchy. Keep adding cornstarch to your slime a little at a time until you’re happy with the consistency. Thicker conditioner will makes a thicker slime, while a thin conditioner with a higher water content will need more cornstarch – in some cases a LOT more cornstarch. Most brands of conditioner should work, but if you’re using a different brand, the amount of corn starch you need will probably be different than listed in our recipe. We used Herbal Essence conditioner to make the slime you see in the photos.
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