Dry paint is a powder mass of fine grinding, the particles of which, when sifted, can pass through cells of the smallest diameter. The quality of the pigments directly depends on the degree of grinding.
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To obtain the finished composition, the paint is mixed with a binder mass. Pigments are classified as metallic, synthetic and natural. The latter are created by enrichment, grinding of minerals and rocks, followed by heat treatment. Metal compositions are obtained by dust-like grinding of metal alloys, and artificial (synthetic) are the result of chemical processes. Bronze and silver aluminum powder has become the most popular among metallic type pigments.
Ignition allows you to determine the inorganic and organic origin, for this, the powder is poured into a special container or onto a sheet of steel and heated. Dry organic paint will take on a darker color due to the carbon.
Safety measures
It is important to be aware of toxic properties when working with coloring materials of any type. belongs to the category of poisonousdry paint, containing elements of zinc, copper and arsenic. In the presence of such compounds, the method of application with a brush is more rational, due to this, the likelihood of poisoning can be minimized. The harmful effect is more pronounced when using spray guns, sprayers and other devices with a similar principle of operation. Regardless of the application method, strict adherence to safety rules and the use of a protective mask or respirator is necessary.
Application
Quality dry paint for concrete does not deteriorate and does not change color in an alkaline environment, when exposed to ultraviolet rays, when systematically dried out and as a result of repeated moisture ingress. Such properties are distinguished by ultramarine, ocher, umber, sienna, mummy, cinnabar, manganese peroxide; pigments: orange, scarlet, burgundy and lemon. Their use is possible in all compositions for coloring, others are used in adhesive type paints, as well as emulsion.
To obtain certain tones, a mixture of various dry elements is required. Pigments must be soaked in water before use, mixed thoroughly and added to the coloring composition with continuous stirring. When mixed directly with paints there is a possibility of incomplete dissolution resulting in visible streaks on the painted surfaces.
Powder paint of aluminum and bronze color is used for painting metal planes and metals, subject to dilution with drying oil orvarnish. The greatest distribution is noted in antique decoration of mirrors, picture frames and other interior items.
Alkali-resistant compounds are used for application to ceilings and walls - these are ultramarine, umber, ocher, red lead. A distinctive feature is the ability to use for any paint.
White color
There are different shades of colors: black, red, brown, blue, yellow and white. The latter include lime, whitewash and chalk. Chalk is sold in powder form with a yellow or gray tint, as well as white large lumps. These varieties are divided into three varieties. For application on wall structures, chalk is used with the finest grinding, resembling premium flour.
Air-type lime is most often used for painting exterior and interior walls. The quenched look can be mixed with dry pigments that do not change hue, such as lime paints in yellow, red and blue, as well as burnt bone, umber and ocher.
White is a finely ground white powder. The composition of dry paint of this type includes milled elements of titanium ores, lithopone, lead, steel zinc. The greatest distribution of white was purchased as a component for oil colors and putties.
Yellow and blue colors
Ultramarine and azure belong to the category of blue pigments. Azure is added to enhance the hue in soot and is used to make enamel and oil-based coloring compositions. It is characterized by darkening when exposed to ultraviolet radiation, because of this, its use is possible only in interior work. Blue (ultramarine) - dry paint with a green or blue tint, is a component for lime and chalk bases.
Burnt sienna, crown and ocher are classified as yellow pigments. Ocher has a distinctive durability and various tones. For example, after careful calcination, you can get a red-brown hue called burnt ocher. Crowns include pigments ranging in color from orange to bright lemon. With ocher, burnt sienna is similar in characteristics. It has gained the greatest distribution for application on vertical planes under ash or oak.
Red color
Lead and iron minium, mummy, cinnabar are red pigments. The latter powder paint is relatively resistant and is used for interior work due to exposure to sunlight. Red lead is an orange-red tint used strictly for outdoor use due to its high toxicity. The mummy can have a light and dark shade of red. Despite the relative resistance, it is not used for outdoor work. May be natural or artificial. When dyed, it has a bright hue that becomes darker after some time and turns into a red-brown.
Black and green
Chromium and lead greens refer tocategories of green pigments. Chromium oxide is a mixture of yellow crowns and azure, with a decrease or increase in the amount of the latter, other colors can be obtained. Lead green is also obtained by mixing yellow and blue paints.
Charcoal, carbon black and manganese peroxide are black powder paint. The composition of carbon black obtained during the processing of gas or oil can only be mixed with oil solutions, soap and adhesive liquid.
