There are so many slime recipes out there, it’s difficult to know what ones work, or to convert from US ingredients and measurements, and frankly, I don’t often have time (or the inclination) to make slime at home with my children, to explore all of the different options. I have made a few different slimes with my Unschool clubs, including:
Finally, however, with the snow days closing the schools and a friend being harassed by her child into making slime, we got to play ourselves!
The basic recipe we used is this:
1 cup washable PVA glue – this can be any PVA ‘gloopy’ glue. I buy it in big 5l bottles, but a 500ml one from the Poundshop works just as well. If you don’t have US style cup measures, 1 cup is very approximately 250ml.
1 tbsp (15ml) baking powder – this can also be bicarb of soda, but you probably won’t need quite as much if you use that.
1 tbsp (15ml) Contact Lens Solution – the brand is not essential, but checking it has a certain ingredient absolutely is. It must contain sodium borate and boric acid. Without these, the PVA glue will not cross-link and you will just get slightly saltier glue, not slime. I use this one from Amazon as it contains the specific ingredients needed.
The above ingredients will make a standard white (or clear if you manage to get that type of washable PVA) slime. You can embellish the recipe with various ingredients, such as:
Glitter – I like these ones, but any glitter will do.
Food colouring – again, any or all you want to add!
Shaving foam – makes the slime super fluffy! Just make sure it is foam, not gel.
Baby oil – can make it slightly less sticky apparently, but I’ve never tried it.
We added glitter after we made the basic slime, and kneaded it until it was spread throughout, but you can add it before adding the contact lens solution to make sure you don’t have to work so hard to get a consistent glittery effect.
The basic method is this:
- Add the glue to a bowl.
- Add any extras – such as glitter, food colouring, shaving foam and stir well.
- Add the baking soda and stir.
- Pour the contact lens solution to spread it across the glue mixture as much as possible, and then stir really well.
- As soon as it starts to come together to a slime consistency, get your hands in and start kneading it. The more you knead and play with it, the better texture it gets as it spreads the contact lens solution throughout.
- If you want it to be firmer, add a little more contact lens solution.
And there you have it – slime! Keep it in a plastic tub or bag for as long as you want: it will eventually dry out and become less elastic, but keeping it in an airtight container will slow this down.
Have fun and be sure to share any pictures of slime you make over on my Facebook page!