Safety Flux is designed for use with copper foil. Low fuming, low smoke and low odor, this formula is designed to be easier on the skin and leaves no greasy mess. It is environmentally safe and easy to clean up, washing off stained glass easily even after 14 days.Details:8 fl. oz. (0.23 L)Easier on skinNo greasy messNo zinc chloride or ammonium chlorideEnvironmentally safeEasy to clean upLow fuming, smoke and odorCAUTION:Wear safety goggles when using glass toolsVentilate when solderingIf swallowed seek medical attention immediately