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Marking Of Oil Paints And Enamels
Marking Of Oil Paints And Enamels

Video: Marking Of Oil Paints And Enamels

Video: Marking Of Oil Paints And Enamels
Video: Adding Washes & Blending Oil Paints - Char B1 bis (Trumpeter 1/72) 2024, April
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In order to navigate in the appointment of paints and enamels, to be able to choose them correctly, to choose auxiliary material for them, it is useful to get acquainted with their accepted marking

In the name of the paint or enamel, and it is necessarily indicated on the packaging (label), designations have been introduced that help to find out the composition of the paint (enamel), its purpose. Paints are based on drying oils, varnishes and enamels - on the basis of synthetic resins. On what binder the paint or enamel is made, the index of the letters behind the name indicates.

  • MA denotes paints on drying oils from vegetable oils,
  • PF - enamels on pentaphtalic varnishes,
  • GF - for glyphthalic,
  • YES - on oil-phenolic varnishes,
  • ML - melamine alkyd resins,
  • MCh - on urea-formaldehyde resins,
  • PVA - based on polyvinyl alcohol,
  • BG - based on bitumen,
  • AK - based on polyacrylates,
  • MS - based on melamine styrene resins,
  • PE - on polyester resins.

The letter is followed by a numerical designation. By the first digit, you can judge the purpose of the paint. The numbers 1 and 5 say that the paints are suitable for outdoor and indoor use, the number 2 is for indoor painting only, 0 is a primer, 00 is a putty.

Paints based on drying oils (MA), glyphthalic (GF), pentaphthalic (PF) and oil-phenol (FA) varnishes belong to the group of alkyd paints. They are compatible with each other, they can be mixed in various ratios (proportions).

Paints suitable for outdoor use should be prepared with fade resistant pigments and weather resistant binders. Some pigments - zinc white, ocher, red lead, chromium oxide - do not fade even in bright sunlight.

High-quality oil formulations are obtained only on natural drying oil. They are used to paint surfaces for protective and decorative purposes. If the main purpose of painting is to protect the surface to be painted, painting is carried out with compounds that form a glossy film. When decorating surfaces indoors, as a rule, matte coatings are used, which soften the tones of the color and make the defects of the surfaces prepared earlier for painting less noticeable.

Matte coatings are obtained by reducing the amount of binder in the film, replacing it with an evaporating solvent and introducing matting additives into the formulations - waxes diluted in a solvent. Such coatings are beautiful, but their strength is low. When preparing for painting with matte oil paints, the surfaces are primed with linseed oil or paint and painted at one time with a greasy oil composition to gloss. In this case, the appearance of the prepared surface should be uniform. All alkyd paints and enamels are applied by brush or roller, usually in two layers. Paint consumption per 1 square meter of surface (in one layer) is on average about 150 g. Paint consumption depends on color and hiding power; for whitewash - not less than 200 g / m2.

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