Hi Pat
Did anybody ever see something like this happen on a new Porcelain floor. They said it is a spill from coffee.Then the tile supplier recommended cleaning with Aqua Mix tile & grout cleaner (alkaline) and the same thing happened.No residue on surface, can't feel a difference on tiles, if you wet it, it darkens for a split second<680F.jpg>Visit list archives, subscribe, unsubscribe or change your subscription preferences: http://stoneandtilepros.simplelists.com/sccpartners Start a new conversation (thread): sccpartners@stoneandtilepros.simplelists.com<holiday Inn.jpg>