How to Keep Your Diamon-Fusion International (DFI) Protective Coatings Performing Like New Forever: br br Congratulations on your wise decision to treat your surface with Diamon-Fusion. While Diamon-Fusion dramatically reduces the cleaning requirements of your treated glass, you do have to perform some cleaning and maintenance to ensure on-going performance. br br For harsh environments, where the treated surface takes a beating, the continued exposure may deteriorate the Diamon-Fusion International (DFI) coatings effectiveness. If this happens, you may experience a decrease in water repellency. The coating is still working, it's just not as effective as when it was brand new and first applied. When this happens, a quick boost of DFI Revitalizer will bring the surface back to its peak performance and like new condition. br br Visit for more information on Diamon-Fusion International (DFI) protective surface coatings, restorationcleaning, and maintenance products.