what is oleophobic coating

An oleophobic coating is a thin layer of fluoropolymer-based solids that is bonded to the glass of a devices screen. It is designed to repel oils and other substances that can leave fingerprints and smudges on the screen. The coating is commonly used on the touchscreens of smartphones, tablets, and other devices to make them easier to clean and prevent fingerprint marks. Oleophobic coatings are not permanent and can wear off over time with normal usage. However, there are kits available that can be used to restore or add an oleophobic coating to a devices screen.