Long gone are the days of teflon, when you could slap a chemical coating on something to make it repel water and other materials. Non-Stick is no longer the way to go with repelling products. Nowadays, there are some products that have to repel water and other buildup. So scientists looked at natural repellants like duck feathers, insect wings, and super repellents like the leaves of the lotus plant. When a product is omniphobic it will resist oil and other liquids from saturating the object.