What is Slime?

Welcome to our first post! In this post we will focus more on the science behind slime in an effort to better understand the processes taking place when creating your slime!

Slime is made by mixing glue (white or clear) with water and adding other substances like glitter, coloring, flavoring etc. and thereafter activating the mixture to form the “slime” we have all come to know and love.

Glues are known as linear polymers which are large, long molecules consisting of many smaller molecules known as monomers. Most glues used in slime are PVA (“polyvinyl acetate”) which consist of carbon, oxygen and hydrogen.

The best known activator which is freely available is Borax powder. Borax (special kind of soap), is a mineral made of “sodium borate” and ground into a powder. Borax is also a monomer.

Because the Glue and Borax are both mixed with water first, when combined, they interact through hydrogen (water) bonding to create slime. Once the bonding has taking place, the mixture is no longer a normal linear polymer (glue only) but a matrix polymer.

A linear polymer can be compared to freshly cooked pasta – each noodle is separate from the other and does not hold a shape when placed into a container.

A matrix polymer is almost like left over pasta – all the noodles stick to each other and retain the shape of a container.


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