NeutralThin is a practically odorless general-purpose thinner, brush cleaner and volatile painting medium for oil-based paints and artist paints. It is free of aromatic and chlorinated hydrocarbons. This hypo-allergenic formula without essential oils has been used successfully by chemically sensitive artists for more than a decade. However, due to the individual uniqueness of allergic reactions, exceptions are possible. Flashpoint greater than 142ï¿½ F and OEL > 300 ppm.