Characteristics of water-based paint and differences from water-based paint

Sometimes it is necessary to renovate the facade or the interior walls. The number of paint materials in hardware stores is replete with an assortment. At the same time, a large part of the compositions is occupied by water-dispersion paints. Often people confuse them with water-based materials, and some think they are the names of the same thing. But in reality, these species are slightly different.

Features and characteristics of water dispersion paint 1500

The paint, on the label of which it is written that the composition includes an aqueous dispersion with different mineral and polymer fillers, is called water-dispersion paint (WDK). The composition includes the following elements:

• workbook;
• solvent;
• filling;
• pigment;
• mineral supplements.

Polymers are used as a binder:

• polyacrylate;
• latex;
• styrene-acrylic;
• styrene butadiene.

During the dyeing process, the polymer is diluted in water loaded with pigment (titanium dioxide) and additives such as chalk or lime. After application, the water evaporates and the rest of the components polymerize. They are firmly glued to each other thanks to the polymers. The result is a smooth film of the desired color.

Benefits

VDKs are used indoors and outdoors, have a long service life.Durability varies depending on paint composition. Paints containing acrylic and latex have been used for a long time. These components are best suited for interior paints, giving them elasticity, covering power and resistance.

The most important characteristics of a high quality VDK are:

• abrasion class;
• the presence of antifungal properties;
• moisture resistance;
• membership;
• hidden power.

According to GOST, according to the first parameter, paints differ by 5 classes. Class 4 and 5 paints and varnishes only allow dry wiping of the surface. After 40 passes with a damp sponge, they respectively lose less and more than 70 microns. Therefore, these VDKs are recommended for use in dry rooms. From the 3rd class, water-dispersion paints are used in wet rooms, and the 1st - in bathrooms. It is important that they contain fungicidal additives that provide antifungal properties.

The presence of chalk in the composition indicates insufficient covering power. Titanium Dioxide is one of the best fillers, yielding around 97%. VDK has a wide range of colors. At first it is available in white or transparent. This is called the base. With the help of special additives, they can be tinted in any shade.

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Characteristics and parameters of water paint

Water-based paint (VEC) - consists of liquid components. Based on the definition of an emulsion, it is a subspecies of a dispersed system. Similarly, VDK consists of binder, solvent, filler and pigments. Only in this case, all components should be liquid.

It has many advantages:

• drying rate;
• respect the environment;
• scentless;
• a large choice of shades according to the corresponding range;
• ease of application.

There are far fewer disadvantages. These include short life, abrasion, relatively low strength.

Composition of the emulsion

All CVEs are distinguished by the binder:

• acrylic;
• silicate;
• silicone;
• mixed.

Emulsion paints are used for interior and facade work on mineral supports. Can be applied over old paint, but not oil (alkyd). Acrylics are distinguished by their diffusion. They are distinguished by attractive cost and ease of use, relative durability. When mixed with latex, they become elastic.

They are not recommended for use in “warm facade” systems due to their low vapor permeability. Otherwise, it can lead to mold growing inside over time.

Materials based on silicon-containing polymers and silicate are fundamentally different. They are characterized by high vapor permeability. This creates good conditions for the wet exchange of cotton with the environment. In addition, structural and conventional silicate paints are used in the renovation of old buildings. They don't just stick to the base, but penetrate it and create a strong chemical bond.

Today, another type of CVE is rare. This is a PVA based paint. Has low performance indicators. But the main advantage is that you can cook it yourself. PVA is diluted in the required proportion with water and the pigment is added. Adding minerals, such as lime or chalk, creates a finished filler from such paint.

Comparative analysis

In order to understand what is the difference between VDK and VEC, consider the definitions of these chemical compounds:

1. The dispersion is a mixture of several solid or liquid substances, immiscible with each other, but having a homogeneous structure.
2. Emulsion - a composition of two or more liquid substances equally distributed throughout the volume, but not mixed. The most common example of an emulsion is milk.

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From the definitions, it becomes clear that VEC is a subspecies of VDK. Therefore, for simplicity, they are distributed according to the following criteria:

• mix only liquid components - VEC;
• mix the liquid with the solid - VDK.

These types of paints differ in some of the characteristics recorded in the table:

Conclusion

In fact, VDK and VED for an ordinary person will differ little. Painters will be able to notice any differences while working, as the emulsion is easier to apply and smoother to work with. For the subsequent operation, the main composition of the paint is much more important. Because among VDK and VEC there are excellent durable materials.