
Combine the baking soda solution with the glue and mix with a spoon or with your hands. In a separate small bowl or measuring cup, add the baking soda, contact lens solution and food coloring, if you are using it.

Adding baking soda to your slime recipe helps it have more form and firmness. Many times, slime can come out too runny, and it doesn’t hold together well for squishing and kneading. In addition, baking soda can help rescue slime that has gone wrong. This amount is just right to mix with a 4-6-ounce bottle of glue. The next recipe has a similar consistency.How to Make a Slime Activator with Baking SodaĪ simple and effective baking soda slime activator you can make is four pinches (about 1/2 tsp.) of pure baking soda and 3 tablespoons of multi-purpose contact lens solution. As long as you end up with a semi-hard, semi-stretchy, moist, light, almost dough-like slime, you did the recipe right. I think the brand of cornstarch and humidity may have a lot to do with the variance in cornstarch amounts from what I've observed in my experiments.

The recipe worked great when I tried it a couple times with just 1/4 cup cornstarch, but a co-worker found that he needed 2 1/4 cups to get the dough-like consistency of a good fluffy slime. If you find that your slime is still sticky after kneading it for a while, keep adding cornstarch to the slime and knead it in until you get a good consistency. Slowly add 5 more tablespoons of water, stirring well after each one.

