Firescoff is a revolutionary heat activated ceramic spray coating. Firescoff provides an all-in-one scale preventer, high performance non-fluorinated flux, for both hard and soft solder, and the convenience of easy removal in warm water. Jewelry and gemstones evenly coated with Firescoff are protected from scaling. Firescoff transforms from a clear liquid mist to a protective ceramic anti-oxidation barrier with built-in flux. The Firescoff coating can be removed by simply rinsing jewelry in warm water or placing jewelry briefly in an ultrasonic cleaner. 4.23 oz.