Pigments (dry paints)
Pigments, which are differently called dry paints, are fine powder, diluted with special substances, from which paint is obtained. Allocate artificial and natural pigments. Usually, water is used for dilution of dry paint, but enamel and oil bases can also be used. But as for dry paints, which are based on chalk, it is acceptable to use only water for their dilution.
The quality of grinding affects the quality of the paint. When sifting dry paint on a sieve, there should be no large particles.
Kohler - ready-to-use multi-colored paint - is produced by mixing various pigments. Pre-different pigments are soaked in water, as it is not recommended to use dry paints in the state of powder, because in any case the pigment will not be well divorced, and there will be stains on the wall. Before mixing, the compositions of pigments are filtered, then they are poured, without stopping to constantly stir. Below we look at the pigments of different colors of dry paints,but if you are doing repairs and you need acrylic paint, you can find out more about them on the site - http://www.gipostroy.ru/catalog/category/kraski-i-laki, where you can find not only interior paints, but and varnishes, solvents, plasters and more. Gipostroy offers a wide range of materials for repair and construction.
There are pigments of different colors.
White, chalk, lime are white pigments. Lime is often used for painting exterior and interior surfaces. Lime is quenched with water in the ratio of 3 parts of water to 1 part of lime. As a result, the composition should resemble milk. Chalk is 2 colors: white with a shade of yellow and white with a shade of gray. In the course of whitewashing usually used otmuchenny chalk very fine grinding.
Such dry paints as white are obtained by grinding titanium ores, calcined zinc metal, lithopone, carbonate lead. Such pigments are used for the preparation of oil paints, putties. Yellow pigments are ocher and crown. Okhru, which is very hot on fire, is usually called a blackhead or burnt ocher, the hiding power of this shade is 65-90 tons per 1 m.
Blue pigments are glaze and ultramarine. The coverage rate varies from fifty grams per square meter. Usually, ultramarine is used in lime and chalk paint compositions.
Mummy, lead red lead, cinnabar, iron minium are all pigments of red color. The limit of opacity of iron minium is 20 grams per square meter, minium lead - 100 grams per square meter, mummy - 30-60 grams per square meter, cinnabar - 80-120 grams per square meter. However, it should be noted that iron oxide and red lead oxide are not used in the interior decoration of the room due to the high level of toxicity.
Green pigments are lead greens and chrome greens. The coverage limit for this dry paint is 40 grams per square meter.
Metallic pigments include powders of bronze, which are used in the dyeing of metals. Here the limit of coverage is 3-4 grams per square meter.
In any painting composition, manganese peroxide, carbon black lamp, mummy, cinnabar, ocher, siena, iron minium, chrome oxide, scarlet, burgundy, orange are used.The remaining dry paints are used in emulsion and adhesive paint formulations.
Date: 09.10.2018, 12:41 / Views: 64363
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