We sanded the floor in the children's playroom a few months ago. I was originally going to paint the floorboards in F&B Railings, and got talked out of it, and we applied Osmo Polyx oil instead. But I don't like it! Can I just paint directly over it or will I need to get the floor sanded again? And if the latter, will it need to be fully sanded or just a buff? Thanks!