Acrylic paints are considered the most common paints for facades. They are suitable for almost any type of surface, providing a durable coating and protection against excess moisture. They also lie flat, odorless and dry quickly. Using an acrylic coating, you can hide small defects, give the house a beautiful and neat appearance.
Under each type of wall covering, there is a large selection of different facade paints. They are made taking into account the properties of these coatings, and also have their own specific qualities.
Most often, at the last stage of home decoration, facade acrylic paints are used that have the following characteristics:
- wear resistance;
- resistance to temperature extremes.
Acrylic paints are based on acrylic acid derivatives in the form of resins with additives. Facade acrylic paint is of two types:
- mixtures of organic solvents;
- water based (water based).
Water-based facade acrylic paint is well suited for its technical characteristics for home decoration, it dissolves with ordinary water, has no smell and dries quickly.
The composition of acrylic paint includes:
- film-forming substance (binder) - the quality of the paint, its durability and strength depend on this component. It affects the adhesion to the surface and connects the remaining components of the coating;
- solvent — reduces viscosity; either water or an organic solvent is used;
- pigments - give color, are natural, synthetic, organic and inorganic. If you need to create your own shade, pigments should choose the same manufacturer as the white base paint itself. This will protect against the dissolution of the pigment in the binder.
Fillers (dispersant, coalescent, antifoam and others) can also be added, which are responsible for wear resistance, moisture resistance, strength and antiseptic effect. To obtain lasting shades, various organic and inorganic compounds are used. The cost and technical characteristics of the coating depend on the presence and quantity of components in the composition.
Before drying, acrylic paint can be diluted with water, and the excess should be gently wiped with a wet towel, but when finished, the coating looks like a strong insoluble plastic film, although it seems quite thin.
Advantages and disadvantages
Acrylic compounds are very popular due to their ease of use, with their help you can finish the repair during the day and at the same time not be poisoned by toxic substances that are released from other types of paints and varnishes. Of course, it requires certain storage and use rules. Acrylic consists of water, so you need to store the paint at plus temperatures; it is possible to apply a new layer after drying the previous one, so that the paint is well laid and not deformed.
The composition is so strong and durable that it will not be easy to remove from the surface. This is both a minus and a plus. And the plus is that the composition practically does not respond to mechanical stress.
The benefits include:
- good tolerance of temperature changes and changes in weather conditions, the paint is resistant to moisture, does not crack and does not fade in the sun;
- long service life (from 10 to 20 years);
- the composition is odorless and dries quickly;
- a wide range of applications, paint is used for both external and internal works;
- environmental friendliness;
- high vapor permeability;
- ease of application;
- the ability to stain at temperatures from -20 to 30 degrees Celsius;
- masking minor defects.
- relative high cost;
- the need to monitor the safety of the material in an open container;
- Before applying certain types, first a primer must be applied.
A wide selection of paints and varnishes of foreign and domestic manufacturers is presented on the modern market. Finding the right front acrylic paint is easy.
Among domestic manufacturers, it is worth highlighting the Eurolux and Optimist firms. Paints and varnishes of both companies have a wide range of different shades, in comparison with foreign analogues they are not inferior in quality, but much cheaper.
Of the foreign companies, the Finnish manufacturer Tikkurila is most popular . It produces paints for various types of surfaces that are of high quality. Paints and varnishes of this manufacturer are time-tested.
The following is a list of manufacturers who have received more positive reviews from customers:
- “Ceresite” - is best suited for painting plaster, can also be used for roofing due to its high wear resistance and low water absorption.
- "Halo" - has good vapor permeability, it is used for brick, wood and plastered surfaces.
- "Parade" - resistant to ultraviolet, vapor permeable. It is painted on concrete and metal surfaces.
- "Farbitex" - a wear-resistant coating, withstands temperature extremes, is well tinted in pastel colors. Designed for concrete, brick, putty walls.
- Matte paint "Dulux" - is used for any facades with a mineral base.
- "Tikkurila" - is perfect for already painted surfaces, perfectly fits, dries quickly, moisture resistant.
How to choose?
The choice of facade paint is a very important process, because not only the appearance of the building, but also its service life depends on it.
The facade is adversely affected by weather conditions, and therefore it needs additional protection.
Properly selected paint should have the following characteristics:
- resistance to corrosion;
- wear resistance;
- protection against moisture;
- the coating must not ignite if a fire occurs;
- UV protection
- resistance to temperature changes;
- durability, paint should not be damaged;
- resistance to pollution.
These criteria must be met for all types of surfaces (wood, concrete, metal), because they provide a neat appearance for many years, high strength and protection against damage.
There is a wide selection of colors for sale, but if you cannot find the desired color, you can purchase white paint and tint by yourself by adding pigment.
The film, which is formed after drying of acrylic paint, reliably protects the concrete surface, provides immunity to chemicals and resistance to adverse weather. Waterborne paint protects reinforced concrete structures from corrosion.
When choosing a facade coating for wooden walls, it is necessary to pay attention to the antiseptic properties of the coating, because the tree has a high penetration depth. The antiseptic protects against weathering, mold and rot, preserves the texture of the tree, emphasizes the natural color. Due to the influence of ultraviolet radiation, the wood may crack, this leads to its deformation, therefore it is very important to paint the wooden facade on time.
To choose the right type of coating, you must take into account the climate, weather conditions, type and surface material, paint composition. It is also important to paint the house only in dry weather.
The color of the paint is important. The best option is to select similar shades of the same color, which will be painted roof, facade, frames, stairs. Basically, the roof has a darker shade, and light natural colors are selected for the walls. Looks like a large number of different colors, and dyeing in one color of the whole house.
Light shades will visually make the structure larger and brighter. Colors are also chosen on the basis of climate, in cold areas it is preferable to use dark shades that will attract heat. And for hot regions, on the contrary, light colors are used.
Features of use
Regardless of the type of surface, the principle of using facade paint is almost identical. An important role in preparing for painting is to clean the walls of grease, accumulations of dirt or old paint. The better the surface is prepared, the more it dries, the better the paint will lie.
For a better effect, more than two layers should be applied, but a new layer is applied only after the previous one has completely dried. Despite the fact that the acrylic coating is considered universal, the type of surface to be painted and the composition of the paint are of great importance.
Since this paint has a high drying speed, during use it is better to pour it from the packaging into a small container so that it does not have time to dry. It is also advisable to stain at temperatures up to +20 degrees Celsius, because high temperature leads to faster drying.
If you want to get your own shade of coating, then you need to mix the paints in a separate container before painting, since they lay on the surface of the paint with a new layer, and do not mix.
Painting tools (brushes, roller) are easily washed with water after completion of work. The roller is convenient to use when painting a large surface area, and brushes are best used for hard to reach places.
For painting wooden surfaces, it is necessary to use paint containing antiseptics and flame retardants. Antiseptics prevent mold, and flame retardants protect during a fire.
The process of preparing a tree before painting can be divided into several stages:
- when a simple repair is done in order to refresh the buildings, you can not remove the old paint layer if it is completely preserved and not damaged. In other cases, the old coating, dirt and mold are completely removed;
- it is necessary to completely dry the tree and putty all cracks or defects;
- apply a special primer, and seal the joints with sealant. Ideally, the primer should contain an antiseptic.
The staining process itself takes place with a brush. It is necessary to drive it in the direction of the fibers so that there are no stains, and grind each new layer after drying. In this way, smoothness of the coating can be achieved. If you need to paint a large surface, grinding can be omitted . The end result will still look attractive.
Due to the fact that the metal quickly reacts with moisture, the main problem of this rather durable material is corrosion. That is why it is worth choosing paints with a high content of anti-corrosion substance , which will protect the metal from the adverse effects of weather conditions.
Before painting, it is necessary to prepare the surface: remove rust (with a special solvent or a metal brush), clean from dirt, dry well.
There are coatings that can be used even on rust and without a primer, but it is worth considering that the better the metal is prepared for painting, the longer it will last.
To paint a brick house is a bit more difficult than other surfaces. First of all, it is necessary to repair all cracks with plaster or cement mortar, and then clean it from dust and dirt, if there is old paint, then remove it. Once the walls are cleaned, you can wash them with water from a hose. Sometimes wet walls are treated with a special cleaner.
After the walls have dried, you need to go to the primer, and then to the painting itself. For painting, it is better to choose a wide brush so that there are no unpainted stripes.
It is necessary to paint in two layers, after which time it is possible to apply the second layer indicated on the packaging of the paint.
Stucco and concrete
Fresh and well-dried plaster is easy to stain:
- primer is applied first;
- the surface is well dried;
- then follows the application of paint.
If the surface has defects, then first of all you need to clean it, putty, grind, primer, and then paint it. These processes are the same for plaster and concrete surfaces.
See how to apply acrylic correctly in the next video.