paint

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paint,

mixture of a pigmentpigment,
substance that imparts color to other materials. In paint, the pigment is a powdered substance which, when mixed in the liquid vehicle, imparts color to a painted surface.
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 and a binding medium, usually thinned with a solvent to form a liquid vehicle. The term includes lacquerlacquer,
solution of film-forming materials, natural or synthetic, usually applied as an ornamental or protective coating. Quick-drying synthetic lacquers are used to coat automobiles, furniture, textiles, paper, and metalware.
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, portland cement paint, printing ink, calcimine, and whitewash. Paint is used to decorate or protect surfaces and is generally applied in thin coats which dry (by evaporation or by oxidation of the vehicle) to an adhesive film. Industrial finishes are usually applied by spraying or immersion and are often hardened by baking. Pigments, finely ground, impart color (including black and white) and affect the consistency, crack resistance, and flow characteristics of paint. They may be manipulated to produce glossy, satin, or flat finishes. Oil paints are pigments dispersed in a drying oildrying 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 cotton), corn oil, soybean oil, tung oil, and linseed oil; the first three oils mentioned are more properly called
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 such as 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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, castor oil, or tung oil. These oils are diluted with a thinner, usually turpentineturpentine,
yellow to brown semifluid oleoresin exuded from the sapwood of pines, firs, and other conifers. It is made up of two principal components, an essential oil and a type of resin that is called rosin.
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; metallic salts that catalyze oxidation of the oil may be added to increase the rate of drying. For water paints, pigment is dissolved in a mixture of water with a binder such as glue or casein, or emulsified in a latex polymer. Latex emulsion paint provides such excellent durability and color retention that it now dominates the paint market. Enamel paints contain varnishvarnish,
homogeneous solution of gum or of natural or synthetic resins in oil (oil varnish) or in a volatile solvent (spirit varnish), which dries on exposure to air, forming a thin, hard, usually glossy film.
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 and usually dry to a hard, glossy finish. Industrial lacquers (widely used on automobiles and furniture) are valued for rapid drying to a hard finish. The vehicle is commonly pyroxylinpyroxylin
, partially nitrated cellulose (see nitrocellulose). It is used in lacquers, plastics, and artificial leathers. Pyroxylin lacquers are made by dissolving pyroxylin in a mixture of volatile solvents and adding a plasticizer and a pigment or dye.
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 in an organic solvent. Baked acrylic finishes have recently become popular for industrial products such as automobiles and appliances.

Bibliography

See C. R. Martens, Technology of Paints, Varnishes, and Lacquers (1968).

Paint

A protective finish for architectural elements, most often composed of a coloring agent ground in linseed oil or other synthetic base.

paint

[pānt]
(computer science)
To fill an area of a display screen or printed output with a color, shade of gray, or image.
(electronics)
Vernacular for a target image on a radarscope.
(materials)
A mixture of a pigment and a vehicle, such as oil or water, that together form a liquid or paste that can be applied to a surface to provide an adherent coating that imparts color to and often protects the surface.

paint

A liquid solution of pigment in a suitable vehicle of oil, organic solvent, or water; liquid when applied but dries to form an adherent, protective, and decorative coating. Often categorized according to the solvent used for thinning, for example, water-thinned paint or solvent-thinned paint. Also see acrylic paint, cement-water paint, epoxy paint, latex paint, synthetic rubber-base paint, vinyl paint, water-based paint.

paint

(1) In computer graphics, to "paint" the screen using a tablet stylus or mouse to simulate a paintbrush. See paint program.

(2) To transfer an image as in the phrase "the laser printer paints the image onto a photosensitive drum."

(3) To create a screen form by typing anywhere on screen. To "paint" the screen with text.
References in periodicals archive ?
Poetic paintability is also addressed by the Song landscape painter Guo Xi (ca.
Flat density profile provides consistent glue soak and paintability.
For new or newly cleaned surfaces, even a few days' exposure will decrease paintability and paint lifespan.
Exxtral performance polyolefins are becoming increasingly popular with automotive designers and processors looking for new materials that offer reductions in weight without sacrificing strength as well as excellent surface appearance, paintability or the ability to mold-in color.
The polymer formulation for Duraform DR coating is modified to offer excellent abrasion resistance and paintability for garage and entry doors, which can increase their durability and colorfastness.
However, because iPB-1 is a nonpolar polymer, which lacks of chemical functionalities, performs low paintability and dyeability, low adhesion ability to metal, poor compatibility with polar polymers, which restricts its applications.
They are also said to offer excellent paintability for bumper fascia applications.
The material provided a Class A surface and good paintability.
For reasons of paintability, recoatability, good adhesion and prevention of surface defects, it is important for paint and substrate surface tensions to have similar values, with the paint having a lower surface tension than the substrate to insure wetting (see the October 2004 "Coatings Clinic" for a discussion of wetting).
Ryntz has also written one book, Adhesion to Plastics: Molding and Paintability and edited two books, Plastics and Coatings: Durability, Stabilization, and Testing and Coatings of Polymers and Plastics.
In addition, there is now a paintable silicone, Silicone II XST, which combines the superior performance of silicone and the paintability of an acrylic.
Technical improvements for OSB are required with respect to surface quality characteristics, workability, machinability, paintability, swelling, and aesthetics.