McNett Sea Buff and Sea Gold Mask Cleaning and Anti-Fog Kit Specially formulated dive mask precleaner and slate cleaner and ideal for cleaning slates without harming or scratching. Sea Buff also removes other residue accumulated on masks while diving or during storage. Sea Buff is Rated BEST Anti-Fog by Rodale's SCUBA DIVING Magazine!. Sea Gold is safe for all glass and plastic lenses and will not harm surrounding silicone or rubber support frames. Our unique clear formula means long lasting anti-fog protection. Sea Gold is highly concentrated and designed for quick, simple, in-field application Not recommended for swim goggles