Our No 2 non Ammoniated clock cleaning concentrate, for cleaning clock movements / brass, copper, bronze etc. Will remove grease, oil, dirt and tarnish on brass and copper clock movements. Directions - mix 1 measure of the fluid with 7 measures of cold water in a suitable container, eg. polythene. Submerge fully the items being cleaned until all tarnish is removed, rinse thoroughly with water then polish in the usual way. For light soiling or Ultrasonic applications dilute 1 measure of fluid to 8 measures of water Once complete, we recommend using Priory Polishes Clock Oil. AS WITH ALL CHEMICALS ALWAYS USE PROTECTIVE CLOTHING. Avoid inhaling the vapour. Irritating to eyes, respiratory system and skin. Keep out of reach of children. Avoid contact with eyes, face, hair and skin. Flammable.