I stumbled across a intriguing read this morning. It’s an article about a coating for phones, but can be applied to almost anything. If you get a chance check it out and see what you think.
https://www.theverge.com/2018/4/16/...phone-screen-anish-tuteja-materials-repellent
https://www.theverge.com/2018/4/16/...phone-screen-anish-tuteja-materials-repellent