Can these be cleaned? If so with what? Ours are sun faded can we put a clear coat on them to give it a shine again?

You can easily clean our Pickleball Court Kits. Since these are outdoors, spraying them down with a soap and water solution would be the easiest. For any stuck on dirt and grime, you use a broom or mop to remove it. Once all the soap has been removed from the floor, you will just want to let the flooring air dry. Since our tiles are UV stable, you won't need a clear coat to bring back its shine. It will keep shining real and true for years to come.