Peek 33001 Metal Polish, 50ml Tube Peek has been used by millions since the beginning. In 2005 Tri-Peek International Limited in Great Britain was granted the Royal Warrant from Buckingham Palace, which is only bestowed on a very few companies. Works on ALL Metals, Fibreglass, Perspex, Eisenglass, mirrors, clouded glass and crystal, leaded glass, ceramics and ceramic tile, porcelain, enamel, granite, marble, laminates and Formica, linoleum, plastic convertible windows, plastics, Plexiglas, Lexan, acrylic, powder coating, auto and aircraft paint (to remove stains and buff out surface scratches), solid vinyl, polyurethane; all non-porous surfaces. Peek polish safely restores tarnished and damaged metals: chrome, aluminium, magnesium, and alloy wheels. Peek retards tarnish up to 3 months or more depending on the environment. Yes Peek is NSF certified as safe for use on food products.