drying oil

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drying oil,

any of several natural oils which, when exposed to the air, oxidize to form a tough, elastic film. The common drying oils are cottonseed oil (see cottoncotton,
most important of the vegetable fibers, and the plant from which the fiber is harvested. The Cotton Plant

The cotton plant belongs to the genus Gossypium of the family Malvaceae (mallow family).
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), corn oil, soybean oil, tung oiltung oil,
oil obtained from the seeds of a tropical tree, the tung tree (Aleurites fordii) of the spurge family, and from seeds of some related species, all from Indomalesia or W Pacifica. It is known also as China wood oil and nut oil.
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, and linseed oillinseed oil,
amber-colored, fatty oil extracted from the cotyledons and inner coats of the linseed. The raw oil extracted from the seeds by hydraulic pressure is pale in color and practically without taste or odor.
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; the first three oils mentioned are more properly called semidrying oils. Linseed oil is the most widely used. Drying oils are used mainly in paints, varnishes, lacquers, and printer's ink. Use is recorded as early as A.D. 200 of boiled linseed oil, which dries faster than raw oil. Tung oil is imported from China, and linseed oil mainly from Argentina. Drying oils have also been prepared from various nondrying fish oils (e.g., sardine and herring oils) and from whale oil.

drying oil

[′drī·iŋ ‚ȯil]
Relatively highly unsaturated oil, such as cottonseed, soybean, and linseed oil, that is easily oxidized and polymerized to form a hard, dry film on exposure to air; used in paints and varnish.

drying oil, paint oil

A vegetable oil which oxidizes easily on exposure to air and forms a hard, dry film; esp. useful in paints.
References in periodicals archive ?
Drying oils, alkyd resins and epoxy esters have certain things in common.
These are drying oils and will not turn rancid as wood finishes, while giving substantial moisture and soil resistance.
Thirty-four chapters address such topics as exterior durability, adhesion, polyester resins, drying oils, silicon derivatives, pigment dispersion, and powder coatings.
These were drying oils (unsaturated fats) that react with oxygen to form a film much like the skin that forms on paint.