Abstract: Disclosed is a method and system for the efficient recycling of components involved in removing water insoluble contaminants from the surface of articles. A physically emulsified terpene-containing composition is applied to the surface of articles to effectively remove water insoluble contaminants. Following application, the physically emulsified composition quickly separates, releasing the contaminants and terpene from the water. The water, terpene and contaminants are separated for reuse in accordance with the present process. The physically emulsified composition includes between about 2 weight percent and about 40 weight percent of a terpene in water.

Abstract: Disclosed is a process for reducing volatile organic compound emissions during the processing and coating of articles contaminated with water insoluble contaminants. The process prevents the formation of undesired etching and pitting which increases the surface area of an article. The use of volatile organic compound-containing surface coatings is thereby reduced resulting in reduced volatile organic compound emissions. The process of the present invention includes contacting a surface with a terpene finishing agent to remove water insoluble contaminants from such surface and applying an amount of volatile organic compound-containing coating to effectively cover the surface at a desired coating thickness.

Abstract: Disclosed is a composition and process for cleaning articles contaminated with water insoluble contaminants. The process allows for efficient recycling of components in the system. The wash solution effectively cleans water insoluble contaminants and, upon settling, quickly releases contaminants from the wash solution. In this manner, the wash solution and components of it can be readily recycled. The composition of the present invention includes between about 1.86 volume percent and about 37.2 volume percent terpene, preferably d-limonene, and between about 0.14 volume percent and about 2.8 volume percent surfactant.