How do spill proof things work? Like when you pour water onto your shoe and it just falls off immediately.

Question

I’m not good at explaining things

[like this](https://i.ytimg.com/vi/7is6r6zXFDc/hqdefault.jpg)

In: Engineering

Answer 1

The surface is coated with a “hydrophobic” material that repels water. Hydrophobic materials (literally “afraid of water” or “against water”) repel water as a result of their chemical makeup. The repulsion can be chemical or a matter of their structure.