Basic definitions LMC. Part 1


Primer - is a composition comprising pigments, fillers and binder. After drying the applied mixture became a homogeneous opaque film having good adhesion to the initial layer. The primer used to create the lower layers of the coating , providing a reliable adhesion of the upper layer with a surface which is exposed to staining. Metal primer serve as protection against corrosion , preserving the structure of wood , cover ( if available) pores of the material , make a flat surface sheets of drywall , plaster layer , chipboard before staining , can achieve significant savings in paint consumption .

Adhesion - one of the main properties of coatings, paint characteristics , which consists in adhering to the painted surface. May be electromagnetic , chemical or mechanical nature . Adhesion measured detachment force per unit area of the coating. To improve adhesion of polymeric materials applied to the substrate 2 of the method. The first method involves the use of an intermediate adhesive layer , second - adding to the composition of the functional groups of the polymer film having a special meaning . The latter method is put into practice by copolymerization or by typing directly in the manufacture of additives paints.

Weathering is a property of refinishing , which is determined by its level of sustainability ( preservation of operational and decorative qualities ) to the malign influence of weather events such as rain , snow, wind , sunshine, high and low temperature . Coating materials are investigated by natural weathering test using either the accelerated tests , which are conducted in climatic chambers , where the test cycle includes alternating effect on the pattern of ultraviolet radiation coatings , low and high temperature , relative humidity and different carbon disulphide vapor .

Glitter called radiance, surface property to reflect light . After entering the light rays to the surface coated with coatings , some of them are diffusely scattered, and the other is reflected at the same angle . Qualitative characteristic luster determined by the ratio of the intensity of the reflected light to diffuse . Glitter is one of the main qualities of decorative paints . In the study of such paint as metallic, it can be seen that the effect of sparking ( otherwise - transfusion shine) is provided by the selective reflection from different angles.

Moisture - relative response indicating the percentage of moisture in a certain material with respect to dry . The relative humidity and moisture content of the surface strongly affect the plenkoobrazovatelnye processes occurring in the water- dispersion paints type. Therefore, there is a need to control both temperature and relative humidity in the room. Consequence of significant violations of the operating mode can be not only a significant increase in the time spent on the drying process , but also a decrease in adhesion.

Durability - property or refinishing products , which is covered with a polymer film is characterized by its ability to provide resistance to the influence of materials classified as abrasive . As an example, the materials for which the resistance to wear - is one of the main operational properties . Such materials include parquet lacquer and the dye used during the application of road marking element . Large values ​​of wear resistance can be achieved by the most successful combination of elasticity and hardness paint , which must be simultaneously soft but resilient, not brittle , but hard enough .

Lacquers are materials created after drying transparent uniform film . It transparency is the criterion by which the material can be attributed to the lacquers . Being in a liquid state , the varnish is not in all cases clear. This is typical for water-dispersion materials. For example , lacquer , which is a creamy liquid after drying is transformed into a high-gloss clear coat . To give the necessary tone lacquer in its composition can be administered special pigment pastes . The resulting material is called glaze , and processing technology - tint . Typically this method is used for decorative sealing timber , although it is often used for painting materials such as concrete and stone.