I'm aware that what I'm asking doesn't likely exist...had a room redone at the lake in T&G pine. I kinda want to white wash it but I'm not sure and I know there is no going back. Is there any sort of finish I could put on it to protect it that would NOT impede my ability to white wash it if I decided to later? I think not, right? Without having to sand back an entire room of T&G pine...