How to choose exterior paint for exterior work?

There is not one option to beautify the facade of a building. To give it a beautiful look ventilated front panels, siding, cover it with natural or artificial stone and plaster. Applying plaster is a common option for finishing the exterior of a building due to its low cost. But with all this, such a house will not look bright enough and effectively and will not have a finished look. Special front paints will help to solve this problem.

Species

The modern market of paints is represented by a huge assortment, there is a place here for the facade. The most common are such coloring mixtures as acrylic, silicate, silicone, latex and texture.

Acrylic blend is the most popular and inexpensive option for painting walls outside. It interacts with almost all materials from which a building can be erected. After drying, it creates a durable protective film that protects against environmental influences. Does not fade, resistant to abrasion and does not form cracks. These paints are not suitable for coating limestone plaster and sandstone walls.

For such surfaces more suitable silicate paint. It is made on the basis of silicate glue, to which mineral pigments and fillers are added. The life of this type of glue is 25 years. It is waterproof and gives a strong bond with the material on which it is applied. Resistant to any weathering. This mixture is suitable for use on concrete and brick. Its weak side is that it is subject to mechanical stress and is not sufficiently elastic, so it can crack after drying.

Silicone paints are considered one of the best for painting plastered facades. According to their characteristics in terms of elasticity, resistance to mechanical damage and prices, they lag behind acrylic compositions, which is why they have not received such widespread use.After applying this type of paint plastered surface does not absorb moisture, but has a high level of vapor permeability and is resistant to temperature extremes. After drying, the coating is able to repel dust and is not exposed to sunlight.

Latex or water-dispersion mixtures are made on the basis of polymer components. The combination of latex and acrylic has increased the operational capabilities of the compositions and increase the scope of their application. They can be used for exterior and interior decoration, but before applying the surface should be thoroughly primed to avoid further occurrence of fungi and mold. This composition can paint any type of surface. It has no sharp odor, is environmentally friendly, is able to pass air and is fireproof. Water based paints can be diluted with water. They dry quickly and are resistant to moisture. The only drawback is that it is not possible to tint them in bright and saturated colors.

Textured or structural coloring compositions are suitable for creating decorative coatings. not only on the facades, but also on other elements of the buildings.They do not require thorough surface preparation and can be applied to cracks and chips at the corners. In the composition of paints there are special plasticizers that help to create a unique protruding pattern. The composition has a high frost resistance, is resistant to UV rays, is insensitive to moisture, has dust and dirt repellent properties. Does not crack due to high ductility. It can be applied to any surface - both on brick and wood.

In addition to these, there are still cement and cement-lime mixture, but due to some flaws in production, they are of little demand because they have poor moisture permeability, simple color gamut and insufficient bactericidal protection. After applying to them often appear fungi and mold.

Benefits of using

The main plus of painting the plaster outside is that the paint enhances its durability and gives a finished look to the facade. It delays dampness, the walls become less wet and deteriorate. Interferes with hit of various microorganisms on plaster surface, so, the term of operation of the building increases.Due to the fact that the paint is hygroscopic, the walls do not accumulate condensate, which is formed from the difference between indoor and outdoor temperatures. Paint is weakly exposed to all sorts of atmospheric influences.

How to choose?

To get a solid and beautiful coating that will last at least 10 years, you must carefully choose the coloring composition. Many do not know how to properly address this issue.

The first thing to look out for is the look of the surface.which needs to be painted. For each material there is a certain paint, endowed with characteristic properties. For a brick facade suitable coloring composition for the mineral surface. The coloring composition for concrete is characterized by high porosity and strength to an alkaline medium. It consists of acryl silicone and water dispersion elements. Not easy to pick paint for wood. Such a surface absorbs dampness most of all, rots quickly and ignites easily. For plastered facades suitable vapor-permeable and moisture-resistant coloring composition.

No need to chase for cheap.

Inexpensive paint is not endowed with those properties that are able to reliably protect the house. Before purchasing, be sure to check what is written on the package and check the expiration date.

Overdue paint will have poor quality, so you will not receive the required protection.

Do not forget that before starting work the surface needs thorough cleaning and priming. Be sure to pay attention to the compatibility of the purchased paint and primer. Calculate the consumption of 1 m2.

The coloring composition must necessarily have the following indicators:

  • Be resistant to mechanical damage.
  • Protect from direct sunlight.
  • Eliminate the development of microorganisms, fungi and mold.
  • Resist the effects of chemicals.
  • Fireproof.
  • Sufficient elasticity, preventing cracking.

Individual formulations also have an antistatic effect. Such paints must be used on facades located along roads.

Focus on the choice of gloss and matte paints. Glossy draw with expressive colors and shimmer in sunlight.But they are designed to be applied on perfectly smooth surfaces and are able to isolate all defects on them. Matt paint on the contrary, hide flaws.

An important aspect when choosing a paint is the manufacturer. Among today's abundance it is easy to “get lost” and get lost in brands. Leading positions in the ranking are occupied by such companies as German Alpina and Cerezit, Finnish Tikkurila and English Dulux. The products of these companies rightfully earned the trust of many buyers and is in high demand among consumers.

Preparation for application

Painting the painting of the facade is preferable to carry out in the spring or to postpone this process in the fall. The temperature regime at this time is in a stable state and the solar activity is low.

The preparatory work takes place in several stages. First, evaluate the condition of the surface. If the plaster or paint on the basis of the old and begin to crack and crumble, then you need to remove them and plaster the wall again. If the surface is in proper form, then tap it with a lightly hammer in search of weak points. Upon detection of such, these fragments are removed and sealed.Then put the primer deep soaking twice and give it a good dry. If necessary, antifungal or antibacterial agents may be additionally applied for protection.

Be sure to calculate the right amount of material. To do this, calculate the area that you want to paint. Then the resulting number is multiplied by the average flow rate (it is listed on each tank) for the first and then for the second layer. Almost all facade paints are applied in several layers.

And finally, it is imperative to prepare the necessary materials at hand. In the process of painting will be useful scaffolding or ladder, roller, brush, paint and container under it, a mixer and a drill, gloves and glasses.

Facade paints are the best way to improve your home and give it a finished and gorgeous appearance. A range of modern coatings is so rich that will allow you to make a choice for every taste and budget.

How to choose a facade paint, see the following video.

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Information provided for reference purposes. For construction issues, always consult a specialist.

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