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Covering the walls with paint

Among the many ornamental covers , used today, paint is still the most important and most common finishing materials. Paints have many advantages, the main of which are convenience, accessibility and ease of use.

The range of varnishes and paints, in the market of building materials, is extremely extensive. Endless rows of buckets and cans of different shape and volume, equipped with bright labels, amaze, but difficult choice. Considerable variation in prices and obscure the recommendation of sellers, most of them do not have a clue about the difference between the contents of two adjacent cans, further complicate the situation.

Covering the walls with paint

Covering the walls with paint coating walls   powder paint is just if not the most popular option finishing. Along with purely decorative qualities, materials used for interior decoration, must meet certain requirements, among which, first and foremost, is environmental friendliness. In addition, these coatings should be easy to dry and wet cleaning, does not attract dust and dirt, as well as to provide a certain level of wear resistance, the value of which can vary greatly depending on the purpose of the premises.

All paints (paints, varnishes and enamels) containing in its composition binder, pigments and fillers, as well as a number of special additives designed to improve their technological and operational characteristics.

The most important component of all, without exception, coatings are undoubtedly the film-forming agent (binder), whose function is usually performed synthetic or natural (suitably modified) high-molecular compounds. During the manufacture of paints these compounds is converted into a form suitable for application to the surface (solutions or dispersions of film-forming agents in organic solvents or water).

White spirit, alkyd & hellip;

Paints on solvents, as the name implies, contains in its composition volatile organic solvent evaporated in the drying process. Currently, the only solvent, which in all countries of the world may be used without any restrictions, is white spirit (purified kerosene). The binder is usually used for paints, alkyd resins obtained by the synthesis of vegetable oils with polyhydric alcohols, organic acids and anhydrides.

Compared with oil-based paint coatings alkyd based dry much faster, and have a high hardness and resistance to weathering. The market shows quite a wide range of materials of this type from matte to super high. The composition of colors include chemical additives, dyes impart special properties and increasing manufacturability of their application. For example, thixotropic agents ensure usability: the paint does not drip, does not flow down from a brush or roller, it does not form a drip even on vertical surfaces, allowing it to apply a thicker layer. Alkyd based paints are often used for painting doors, window frames, furniture, radiators, as well as walls and ceilings in kitchens and bathrooms. Alkyd paint coating to form a dense and durable than water dispersion formulations, and because quite often used for decoration.

Old friend

On sale there are still traditional oil paints, which, undoubtedly, are among the oldest and most well-known finishing materials. As the film former most commonly used drying oils – flax, hemp or tung. Despite the fact that drying oils are capable of film formation when thin layers, lacquer films based on them have insufficient gloss and a low hardness and strength.

Linseed oil paint on a high degree of filling and low consumption, but, as all materials of this group, have relatively low processability, and therefore less frequently used indoors. Nitro and nitro lacquer for interior decoration are not used because of their high toxicity.

Her Majesty Water

Covering the walls with paint Water-dispersion varnishes do not contain solvents, is virtually odorless , characterized by high processability (easy to apply by brush, roller or spray), have excellent adhesion to almost all building materials and have high performance. Unlike most paints solvents, water-dispersed compositions form a vapor permeable coating (" breathe "), which has a beneficial effect on the room climate. Most often they are used for painting walls and ceilings in dry rooms (bedrooms, living rooms, kitchens, offices, etc.), but the major manufacturers certainly have in their assortment and materials intended for use in bathrooms and even in the pool.

Invoice come!

In addition to traditional decorative paints and glazes in the range of paint products companies often meet special textured paint. Textured powder paint coating , in other words, not quite smooth surface, the color scheme helps make varied and interesting, and masks minor surface defects. The latter allows to simplify somewhat laborious operation such as the preparation walls for painting. Textured paint – This water-dispersion paint thickened with the filler. Using different methods of application (with a long nap roller, trowel, notched trowel, sponge, etc.), you can receive a variety of surface texture wall.

The textured surface can also be obtained by using paints containing special fillers. For example, there are paint-filled with sawdust or silica sand. Such inks, in addition to giving the wall a weak or pronounced (depending on the fraction of filler) " silky " invoices, also significantly increase the wear resistance of the surface.

Consumption or coverage?

The coating formed after drying of the protective and decorative functions. Simply put, it must be hidden under the surface of a base (coverage) to protect it from possible mechanical effects (resistance) and to ensure the necessary level of visual comfort (decorative). These properties determine the suitability of inks for use in certain circumstances.

Often, the package includes no paint coverage and flow (m2/L m2/kg or g/m2). This parameter is significantly less certain, since it varies greatly depending on the properties of the surface on which the paint is applied. For this reason, refer to the figures given on the packaging should be with caution. For example, the same paint that has coverage of 10-13 mg/l (ISO 6504/1) can provide a flow of previously painted surfaces of 10-12 m2/l, on the plastered surface of 7-9 m2/l, and on the surface of the plaster 3-5 m2/l. The technology application used paint tools and skills also affect the artist paint consumption.

When you select a specific paint and related materials should be guided by the technical description of the product, which must be specified allowable operating conditions, the requirements for the base as well as provide answers to the questions: how, what and when preparing a paint is applied.

Very important is the issue of compatibility of products. In most cases, the coating consists of several layers deposited on the base: filler, primer, paint and possibly topcoat (eg, varnish), and therefore more correct to speak of the paint system. Any serious company produces a full range of products included in the system, ensures compatibility and declared operational properties of the coating. Consumers only need to accurately comply with the recommendations and, if possible, refrain from experiments.

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