How to Restore a Cloudy Marble Bathroom Vanity? Restore a cloudy marble bathroom vanity by cleaning with a pH-neutral cleaner, gently polishing with fine-grit diamond pads, and applying a marble polishing compound. Finish with a high-quality sealant to protect the surface and maintain its natural shine. Regular maintenance prevents future cloudiness. Visit https://www.residentialcoatingsolutions.com/blog/how-to-restore-a-cloudy-marble-bathroom-vanity