Oil paint considered drying, those with an iodine number of 115-130 are semi-drying, and those with an iodine number of less than 115 are non-drying. Linseed oil, the most prevalent vehicle for artists' oil paints, is a drying oil. When exposed to air, oils do not undergo the same evaporative process that water does. Instead, they polymerize into a dry semisolid. This rate of process can be very slow, depending on the oil. The advantage of the slow-drying quality of oil paint is that an artist can develop a painting gradually. Earlier media such as egg tempera dried quickly, which prevented the
H. G. Hotchkiss Essential Oil Company Plant H. G. Hotchkiss Essential Oil Company Plant H. G. Hotchkiss Essential Oil Company Plant is a historic factory located at Lyons in Wayne County, New York. The remaining two story commercial building is an example of a small frame structure featuring a double storefront with modest ornamentation. It was built about 1884 on the foundations of an earlier structure and is located on the bank of the original Erie Canal. It was occupied by a major producer of essential oils, principally peppermint oil used in the manufacture of patent medicine. It was listed on the National Register of Historic Places