Most of the facades of residential buildings and various buildings are painted. This is done in order to add brightness and expressiveness to similar buildings, as well as in order to protect their walls from the negative effects of the environment. The modern construction market is overflowing with similar compounds, we will focus on silicate facade paint. What are its features, what are its technical characteristics and what customers think about such coverage, we will consider in our article.
General characteristics of silicate paints
Silicate compounds serve as an excellent protective layer for brick and concrete surfaces. The liquid glass included in their composition gives the coating reliability and durability. Additives in the form of aluminum, silicon and zinc further improve the performance of the paintwork, giving it anti-corrosion properties.
The main feature of silicate facade paints is that the surface treated by them is not varnished, so that the walls do not lose their breathing properties and do not form condensate. Components such as talcum and whitewash prevent the formation of mold and mildew, and various pigments make the coating varied and bright.
These formulations are presented to the buyer in the form of a mixture that is completely ready for use. Often, the manufacturer supplements the product with dry dyes, which must be mixed with the coating immediately before application.
Features of silicate coatings
In addition to excellent vapor permeability and durability, silicate facade paint has several advantages. These include:
- ability to withstand the negative effects of moisture;
- resistance to sunlight;
- the ability to maintain their qualities in conditions of temperature extremes;
- long-term safety of the applied coating (more than 20 years);
- resistance to aggressive chemicals;
- the ability to protect surfaces from the settlement of beetles, mold and fungus;
- easy cleaning from dust and smog.
Also, the low cost of the material and the simplicity of its application can be attributed to positive qualities. However, do not forget about the shortcomings that any modern material has. As for the silicate compositions, these are: toxicity, complexity of dismantling, poor elasticity. When working with this coating, it is necessary to observe safety precautions and be prepared for the fact that removing the silicate protective layer will be very problematic.
Types of silicate paints
Silicate facade paints are divided into 2 groups:
- silicate-silicone varieties;
- dispersion-silicate paints.
The first group is characterized by high vapor permeability. These paints form a durable and moisture resistant coating that is not prone to condensation. Silicate facade paint of the second variety has a minimal acrylic content, due to which its diffuse abilities are reduced.
Facade manufacturers
The production of silicate-based facade paints is established by both Russian and foreign manufacturers, so in the modern construction market you can find a composition with any properties and at different prices. Especially popular today are:
- Front silicate Ceresit paint . The products of this brand are characterized by decent quality at a low cost.
- Paint Tikkurila Euro Fasade . This composition is a Finnish product. It is characterized by high operational characteristics and high cost.
- DUFA formulations from FLAMINGO . This type of paintwork is made by a German company and is appreciated by the domestic consumer for decent quality.
- SKIM paints . SKIM facade paints are produced by a Russian manufacturer, which specializes exclusively in facade materials. Products are popular for their excellent value for money.
The performance characteristics of the coatings of these manufacturers may vary slightly, but we will try to highlight the general properties of these materials.
Specifications
Paints for the facade (silicate type) have the following technical characteristics:
- density - about 1.4 kg / dm³;
- permissible temperature range during work - from +5 to +35 degrees;
- acquisition of moisture resistance - after 12 hours (white tones) and after 24 hours (pigmented formulations);
- consumption when applied in 1 layer - from 0.1 to 0.4 liters per m²;
- composition - liquid potash glass with the addition of aqueous dispersions of acrylic and silicone copolymers.
Indicated figures are average and may vary for products of different manufacturers. For example, if you look at the characteristics of silicate facade paint "Ceresit ST 54", it will become obvious that its consumption is less than 0.2 l / m², while domestic coatings are characterized by high consumption (0.35-0.45 l / m²).
How to prepare the surface before applying silicate paints
The requirements for the base on which the coloring composition will be applied are clearly defined by SNiP. They state that the surface to be coated should be smooth, dry and sufficiently strong. The walls of the facade must be cleaned of various stains and dirt, which can reduce the adhesion of the paint. The crumbling wall sections and the old coating must be removed.
The base material also plays a significant role, since the selected composition must correspond to it. In order not to be mistaken, it is better to choose a universal coating that can be applied to any surface.
Such compositions include Ceresit ST 54 facade silicate paint (the flow rate of which we examined a little higher). It can be applied to mineral three-layer plasters, cement and lime mixtures, on top of masonry and concrete.
Special attention should be paid to the presence of cracks and cracks in the walls of facades. Before applying the paint, they must be repaired, since the small plasticity of the silicate compositions does not allow them to fill even small cavities with themselves.
Application Features
If the Cerezit or Tikkurila facade silicate paint was chosen for the work, then it is not necessary to pre-fabricate the paint composition. But in many other cases, before starting work, you need to mix several components to get a ready-made solution.
On the walls of the facade, the paint is applied in about 3 layers, and to improve the effect, the compositions for primary application can be diluted with water (about 10%). For subsequent finishing use a clean dye composition. Between treatments must be at least 12 hours.
The first coat of paint is applied with a brush, and further painting is carried out by a roller. In the process of work it is very important to monitor the uniformity of surface painting and the thickness of the layer (it should be the same everywhere). At the end of the work, the tools are cleaned with plain warm water.
Product reviews and cost
If we consider the price characteristics of these coatings, it should immediately be noted that their cost is due to the popularity of the manufacturer and the presence of modifying additives in the composition of the product itself.
So, Tikkurila products have the highest price tag. Not an exception to this and paint (silicate) facade. The price of one bucket of such products (volume of 9 liters) is about 4200 rubles. Facade paints of the Duf brand are priced at 3,000 rubles for the same volume. The most popular producer of building materials - the company "Ceresit" - keeps the price tag for products within 4,500 rubles for a 15-liter bucket.
At the end of the topic, we pay a little attention to reviews on this product. On the Internet you can find the opinions of a huge number of people who managed to try silicate coatings for facades. Many people like the consistency and color saturation of this product, someone appreciates it for its ease of use, and some customers note a low cost in comparison with other materials.
If we summarize everything said by domestic consumers, we can conclude that facade silicate paints are in great demand in our country, and the reason for this is the availability, huge selection and durability of protective coatings.