Primer: composition and purpose
Before applying to the surface of any finishing material, the surface is recommended by specialists to primer. This procedure will help to give the surface a more even and smooth appearance and reduce the consumption of finishing materials. Today, compounds for priming are different, but each of them contains substances that form the film. Among such substances are resin, oil, bitumen, adhesives. In addition to film -forming substances, the primer includes various pigments, substances accelerating drying and other additives.
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The primer today is presented on various foundations, such as acrylic, alkyd, mineral. All primer compositions can conditionally be divided into two large types. So the first type includes primers that are used for primary preparation of the surface. Such compounds are more often called primer-banding or impregnation. The second type includes the compositions, thanks to which the adhesion of the finishing material with the surface increases.
The compounds for priming are excellent in type, are also classified according to the material on the basis of which they are made. The main factor affecting the use of a primer is the material of the base (mineral, alkyd, acrylic). So for plastering of concrete and brick surfaces usually use deep-pervaluious compounds that strengthen the compounds (to prevent the surface), as well as anti-prophetic primers. On wooden surfaces, soils and consumings are usually used preventing rotting and scaring insects, resin neutralizers and various soils of special purposes (for certain types of colors and varnishes). For metal surfaces, primer compounds are used that stop the process of rust, as well as compositions on ferrous and non -ferrous metals.
With this variety of primer compositions, you can easily choose the necessary primer for a certain type of surfaces. Thanks to the treatment of surfaces, you will achieve more persistent results when finishing.