Rustins Anti-Tarnish Metal Lacquer 125ml Prevents Oxidisation and Tarnishing. Rustins Metal Lacquer is a low solid lacquer based on a polymethacrylic ester dissolved in a mixture of Ketones, Alcohols and Hydrocarbons. Dries to a completely clear colourless film preventing the oxidisation and tarnishing of brass, copper, bronze and silver. The lacquer does not craze or yellow with ageing. The Manufacture has added a UV Stabiliser package to the Product. The Consequence of this has added a slight Yellow Tinge, which photo-bleaches out in Daylight after normal thin film application. Size: 125ml. Usage Instructions: Shake bottle well before use. Surface must be clean, dry and free from grease and dirt. Apply a thin even coat. Avoid over-application. Not suitable for use on surfaces subject to heavy abrasion or friction. A clear UV resistant lacquer that leaves a film that does not yellow or craze on ageing. Has excellent adhesion on chrome, brass, copper and silver. No more cleaning.