You can use a spoon, spatula, or craft stick for stirring. If you want to double the recipe, use 1 cup (240 ml) of clear PVA glue and 1 cup (240 ml) of room temperature water.

The Borax mixture will look a bit cloudy, but don’t worry! The slime will be clear. If you’re creating a double batch, use 1/2 teaspoon (2 grams) of Borax powder.

The longer you knead the slime, the more rubbery it will become. You can leave the slime in the bowl while you knead it. The slime will have a few air bubbles in it at this point, which is totally normal!

The longer you leave the slime in the container, the clearer it will become. Be sure to wash your hands before and after playing with the slime to keep it looking clear. The slime will last several weeks if you store it in an airtight container. Toss it out and make a new batch when it gets cloudy or dirty!

Make sure you’re using clear PVA glue for this, not white school glue!

The saline in contact lens solution is what “activates” the slime and creates the gooey texture! The mixture will be thick and gel-like at this point.

The longer you knead the slime, the thicker it will get.

The longer you leave the slime in the container before playing with it, the clearer it will look. As long as you store your slime properly in a plastic baggie or airtight container after playing with it, it should last for several weeks! Throw away the slime once it starts looking dirty or cloudy.