Latex paint: the truth about Coating materials

Despite the fact that the latex paint - it is one of the most common types of paints, to find reliable information about it is not just the Internet. I am ready to give details about the paint, as well as its variants and basic properties.

Latex paint - the most environmentally friendly type of paint coatings

On peculiarities of paint

Overview

Vodoemulsionku as easy to guess from the name, is a painting material on a water basis. In general, the term "emulsion" means a dispersion consisting of small, insoluble particles of one liquid (dispersed phase) dispersed in another liquid (dispersion medium).

That it was clear that this, just imagine the oil droplets in the water - this is a dispersed system consisting of an aqueous emulsion. Therefore, water-based paints are also called water-dispersion or vodnodispersnymi.

Oil in water - an example of an aqueous emulsion

I must say that in the Soviet times there was a latex paint for walls and ceilings on the basis of PVA. Therefore, many mistakenly believe that vodoemulsionku - it's sure to paint based on polyvinyl acetate.

In fact, to date, the following types of water-based paints:

types of paints

Below, learn more about all these kinds of paints, as well as consider their advantages and disadvantages.

basic quality

Despite the fact that the water-based paints are of several kinds, they all share some common characteristics, seen below:

• No smell. Almost no smell, as pungent smell in paints give organic solvents. In vodoemulsionku instead water is used;
• Environmentally friendly. The paint can be used in children's rooms. In the process of painting, you can not even leave the shelter;

Water-based coatings - a good solution for children's rooms

• The high rate of drying. The coating dries within a few hours. However, according to the manufacturer specifications coating becomes usually after one or two days;
• Failure to cover the cracks and minor roughness. Vodoemulsionku lays down a thin layer, so after painting all the flaws on the surface become more prominent.

The other properties are dependent on the polymer used in the paint composition as well as filler and other components.

types of paints

First of all, I note that the characteristics and quality of the paint is not always dependent on its foundations. For example, acrylics meet both water-resistant and durable, and low-quality or intended only for dry rooms.

Therefore, for a correct choice of paint is necessary to consider characteristics. In addition, an important role is played by the manufacturer of the material. But, of course, a certain influence on the characteristics and type of coating has dispersed phases, i.e. foundations.

Therefore further familiarize themselves with the inherent characteristics of different types of water-based paints and varnishes.

Acrylic paint can be used for painting facades

Acrylic-based

Acrylic coatings are the most popular among the water-based paints. This is due to their high quality and relatively low cost.

dignity:

• Abrasion resistance. Due to this field of application the coating is very extensive;
• Resistant to moisture and weathering. This allows the use of acrylic compounds in areas with high humidity or even for outdoor use. However, keep in mind that not all of them possess moisture resistance;

After hardening acrylic coating becomes resistant to moisture

• Durability. Acrylic paint can last 10-20 years.

If in the process of painting you notice that you are missing a small amount of paint, it can be diluted with water, of course, within reason.

Disadvantages. Disadvantages difficult to identify, as they may be different in different brands. Some coatings are unstable to moisture, while others are unstable to abrasion.

cost of. Prices in the table and hereinafter, relevant for spring 2017 .:

Latex paint satin surface form beautiful

latex

Latex paints may be called as such only conditionally, as to this latex, i.e. the material on the basis of rubber sap, they are irrelevant. In fact these coatings are produced on a modified acrylic.

Therefore, their properties not much different from a composition of an acrylic. The only expensive coating, such as Tikkurila EURO 7 have greater elasticity. They are able to even crack bridging up to 2 mm.

EURO 7 - high-quality latex paint from the Finnish manufacturer

Furthermore, latex coatings typically create an attractive satin surface film. Those. despite the haze, they have a certain luster.

The disadvantages include the fact that paint based on latex usually costs more similar, based on acrylic.

cost:

Field of application of all colors may be different. So before you buy, read the information, which contains instructions on the package.

Vodoemulsionku silicone-based mud has anti-dust properties, so it painted walls rarely need to be cleaned

Silicone-based

Silicone water-based formulations typically the most high-quality and durable. They form a film on the surface, silky, stable to various negative factors.

dignity:

• Elasticity. Typically, these coatings can overlap the minor flaws on the painted surface;
• The ability to repel dirt. This property typically has a silicone paint for facades, walls and ceilings. As a result, the surface needs to be cleaned less frequently;
• Moisture resistance. Virtually all coatings based on silicone have this quality;
• Durability. Typically, the silicone coatings are more durable than acrylic, and latex.

Disadvantages. On the downside, the highest value in comparison with other types of vodoemulsionok.

In the photo Ceresit CT 48 - Silicone paint quality from the German manufacturer

cost:

PVA paint is used only for internal works

On the basis of PVA

At present, on the basis of polyvinyl acetate coatings are found on sale very rarely. This is due to their poor quality.

Dignity. refers only properties The advantages listed above - environmentally friendly, high drying rate, etc. In addition, another positive quality - is the low price.

Disadvantages:

• Instability to moisture. This significantly limits the coverage area of ​​operation;
• Non-resistant to abrasion. If you spend on the painted surface, even with a dry cloth, then it will remain traces of paint.

Most often, the compositions based on PVA paint ceilings

Therefore, this is most often used latex paint for the ceiling, at least for the walls. For painting other surfaces apply it impractical.

Cost. The price will be based on PVA averages around 50 cents per liter.

mineral

Mineral water-based paints from the polymer are distinguished by the presence as a binder of pigments and particulate minerals. However, they are often modified with polymers, so they can contain as part of the same acrylic or silicone.

Mineral coatings are typically used for painting facades

Mineral paints come in several types. However, in recent years in selling usually occurs silicate paint. It is perfect for use on mineral surfaces - concrete or, for example, plaster.

Additionally, these coatings have another advantage - the high degree of vapor permeability. Therefore, they tend to be used for the facades, however, they can also be used for interior applications.

The silicate paints may contain up to 10 percent of an alkali. Therefore, when working with them with your hands need to take precautions. For example, if the eye contact may cause severe inflammation.

Sylitol-Finish - durable silicate paint from the Finnish manufacturer Caparol

Lack of mineral paints is that they are less elastic. In addition, the choice of colors is limited to a narrow range. Use a color scheme designed for polymer compositions can not.

cost:

Output

Now you know that is a latex paint, and what species it is. I recommend further watch the video in this article. If some of the nuances of colors you do not understand - write comments and I will gladly answer.