I looked at a vanity purchased from Max Furniture http://www.maxfurniture.com/Quick+Ship+Vanities+Click+Here/3340/147-114-5221.asp . About a week after installing the vanity one of the family cleaned the vanity top with an unknown product that left multiple etch marks on the surface. I’ve polished marble floors but not a vanity top. The top doesn’t have a marble like finish, the finish is similar to polished Corian. How do you polish the joint where the back-splash and vanity top joins ? Will a felt pad work ?