Correction fluid the Montreal Protocol on Substances That Deplete the Ozone Layer, and then the slightly safer trichloroethylene. Thinners currently used with correction fluid include bromopropane. Because it contains organic solvents (volatile organic compounds), unused correction fluid thickens over time as volatile solvents escape into the air. It can become too thick to use, and sometimes completely solidifies. Therefore, some manufacturers also sell bottles of solvent as "thinner", a few drops of which will return the correction fluid to its original liquid state. To avoid the inconveniences of organic solvents (safety and availability), some brands of fluid are water-based. However, those have
Montreal Economic Institute Montreal Economic Institute The Montreal Economic Institute (MEI) is a non-profit research organization (or think tank) based in Montreal, Quebec, Canada. It aims at promoting economic liberalism through economic education of the general public and what it regards as efficient public policies in Quebec and Canada through studies and conferences. Its research areas include different topics such as health care, education, taxation, labour, agriculture and the environment. Its studies are often mentioned in the media. The MEI was incorporated in July 1987, after being created by a group of Québec intellectuals and businessmen as the continuation of the Institut économique