Patination Gel Medium (118ml). Patination Gel is a Liver of Sulphur Gel formulated for versatlity and convenience. It is used to patinate metals such as Silver, Copper, Bronze and Metal Clay. Patination Gel's shelf life is many times that of dry liver of sulphur. Patination Gel is non-flammable and poses no dry inhalation hazard. Mix 5ml of Patination Gel with with 350ml of water. Water heated to 60C (max) will give the darkest and fastest patination. Patination Gel can also be used undiluted for brushing. Use a solution of water with baking soda to neutralise the Patination Gel and stop the patina darkening.