It is possible to normally apply another oleophobic layer if you wish, though doing this beautifully uniformly and optically beautifully is tough. It costs about £five at Currys Computer system World, though if it goes outside of stock there you are able to decide on it up from Amazon, but https://laptop-screen-cleaner12097.mybloglicious.com/47532995/5-easy-facts-about-dirty-macbook-keyboard-described