Pre-lim is a gentle abrasive paste for safe, non scratching cleaning, widely used in the professional restoration of arms and armour, sculpture, ceramics, brass and copper exhibition cookware, automobile paint work and other fine art surfaces. Formulation is based on blended Neuburg silica chalks in a water / white spirit emulsion. In normal use the product is not a health hazard. Pre-lim's cleaning burnishing action is achieved with extremely fine control using a soft cloth and light pressure. After a few minutes of air-drying, residual chalky deposit is easily rubbed away with a clean cloth, leaving surfaces dry and silk-smooth. To ensure that the cleaned surfaces, especially metals remain clean and bright, protect them with our HP153 or HP1531 Renaissance micro-crystalline wax polish for a long lasting and visually-enhancing finish. Store in its air tight container at room temperature or colder for excellent shelf life. As is customary in professional restoration, a discreet test is advised to ensure that Pre-lim is suitable for specific projects.