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Dry paint, powder paint: composition, application

Dry paint is a fine powder mass, the particles of which, when sifted, can pass through the cells of the smallest diameter. The quality of the pigments directly depends on the degree of grinding.

Kinds

To obtain the finished composition, the paint is mixed with the binder. Pigments are classified as metallic, synthetic and natural. The latter are created by enriching, grinding minerals and rocks with subsequent heat treatment. Metal compounds are obtained by pulverizing the metal alloys, and artificial (synthetic) are the result of chemical processes. The most popular among the metallic type pigments is the bronze and silver aluminum powder.

Calcination allows determining the inorganic and organic origin, for this purpose the powder is filled up in a special container or on a sheet of steel and heated. Thanks to carbon, the organic paint dry gets dark.

Security measures

It is important to remember the toxic properties when working with staining materials of any type. To the category of poisonous is dry paint, which has elements of zinc, copper and arsenic. In the presence of such compounds, the method of applying with a brush is more rational, thereby minimizing the likelihood of poisoning. The harmful effect is more pronounced when using atomizers, nebulizers and other devices with a similar principle of action. Regardless of the application method, strict adherence to safety regulations and the use of a protective mask or respirator are necessary.

Application

High-quality dry paint for concrete does not deteriorate and does not change the shade in alkaline environment, with ultraviolet rays, with systematic drying and as a result of repeated exposure to moisture. Such properties are characterized by ultramarine, ocher, umber, sienna, mummy, cinnabar, manganese peroxide; Pigments: orange, scarlet, burgundy and lemon. Their use is possible in all formulations for coloring, others are used in glue-type paints, as well as in emulsion paints.

To obtain certain tones, mixing of various dry elements is required. Pigments must be soaked in water before use, mix thoroughly and add to the coloring compound with continuous stirring. With direct mixing with paints, there is a possibility of incomplete dissolution, which will lead to the appearance of noticeable bands on surfaces that have been painted.

Powder paint of aluminum and bronze color is used for painting metal surfaces and metals under condition of dilution with varnish or varnish. The most common is in the decoration of old mirrors, frames for paintings and other interior items.

Alkali-resistant compounds are used to apply to ceilings and walls - it's ultramarine, umbra, ocher, iron curl. A distinctive feature is the possibility of application for any paints.

White color

There are different shades of colors: black, red, brown, blue, yellow and white. The latter include lime, white and chalk. The chalk is realized in a powdered form with a yellow or gray hue, as well as white large lumps. These varieties are divided into three varieties. For the application to the wall structures, chalk is used with the finest grinding, which resembles the flour of the highest grade.

Lime air type is most often used for painting exterior and interior walls. The hydrated appearance can be mixed with dry pigments that do not change shade, such as calcareous colors of yellow, red and blue, as well as burnt bone, umber and ocher.

White is a white powder of fine grinding. The dry paint composition of this type includes the ground elements of titanium ores, lithopone, lead, steel zinc. The most common white was taken as a component for oil stains and putty.

Yellow and blue colors

Ultramarine and azure are classified as blue pigments. Azure is added to strengthen the shade in the soot and is used for the production of enamel and oily base paints. It is characterized by darkening when exposed to ultraviolet radiation, because of this, its use is possible only in internal works. Sink (ultramarine) - dry paint with a green or blue hue, is a component for calcareous and chalky substrates.

Burnt sienna, crowns and ocher belong to the category of yellow pigments. Ocher has a distinctive firmness and different tones. For example, after careful calcination, you can get a red-brown shade with the name of burnt ocher. Crowns include pigments with a color range from orange to bright-lemon. With ocher has a similarity in the characteristics of burnt sienna. It has become most common for applying to vertical planes under ash or oak.

Red color

Lead and iron marmot, mummy, cinnabar are red pigments. The last powder paint differs relative stability and is used for internal works due to exposure to sunlight. Lead oxide is a color orange-red color, used strictly for outdoor work, due to high virulence. Mummy can have a light and dark shade of red. Despite the relative durability, it is not used for outdoor applications. Can have natural and artificial origin. During painting, it has a bright tint, which becomes darker after some time and turns into red-brown.

Black and Green

Chromium and lead greens are classified as green pigments. Chromium oxide is a mixture of yellow crowns and azure, while reducing or increasing the amount of the latter, it is possible to obtain other colors. Lead greens are also obtained by mixing yellow and blue inks.

Charcoal, soot 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.

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