DIY decorative plaster painting - step by step technology

Painting of decorative plaster is the final stage of laborious and lengthy work on the application of this finishing material Its natural color is unattractive for decorating not only facades, but also interior spaces. Most often it is gray or white. The first will give the building a dull look, the second - rather easily soiled.

But they were not chosen by the manufacturers of decorative plaster by chance. The fact is that it is gray and white that are the most successful basis for applying paint of any other color.

Those who wish to minimize the complexity of facade finishing work use the technique of coloring the plaster and add a coloring agent to it before applying the finishing layer. This option is bad in that with a large amount of work, mixes of pigmented plaster can have different shades. This inevitably reduces the aesthetic appeal of the facade.

Choice of paint

Painting decorative plaster is beneficial for those which allows you to implement any design idea. There are several painting techniques that significantly increase the chance of obtaining a unique and most effective facade finish.

But to complete this task, you need to correctly choose not only the color, but also the type of paint.

The following types of compositions are most successful for painting decorative plaster:

• acrylic ;
• based on latex;
• based on PVA (water-based);
• alkyd;
• oil;
• silicone.

All of these types of paints are easily applied to the relief surface and form a protective layer, which is so important for external work, minimizing the impact of the environment on the facade. Water-based paint has many advantages, but it requires a two-layer application. Moreover, re-staining is performed only after complete evaporation of water from the first layer.

That is, 2-3 hours after it dries.

Alkyd paint is famous for its protective properties, but it also has its own peculiarities of application. These compositions require dilution with turpentine, drying oil or kerosene. Alkyd paints, in addition to their high aesthetics of the coating, have an important property for facades: they provide high-quality protection against the formation of mold or mildew.

Acrylic compounds are easy to apply, UV resistant (do not fade).

These paints are more convenient to maintain than others: to keep the facade clean, it can be washed with any cleaning agent. Acrylic paints are non-toxic, environmentally friendly and fireproof. Another "plus" of these compositions in their richest colors.

Oil paints - a high-quality covering material, but it has its own drawbacks. These include a long drying time, a large consumption per 1m2 of area, a tendency to cracking.

Therefore, oil compositions are the least popular for facades. For painting decorative plaster, it is advisable to use materials that are more resistant to ultraviolet and low temperatures.

Silicone paints are the best choice for regions with high air humidity. The fact is that these compounds have excellent hydrophobicity (water repellency). At the same time, a film is formed, characterized by high-quality vapor permeability.

This is a definite plus in painting facades faced with decorative plaster.

When buying latex paint, you should pay attention to whether the intended purpose is indicated on the packaging " for facades ". This is due to the fact that the properties of latex compositions for internal and external work differ significantly. The first ones have low frost resistance. The composition of latex paints for facade work includes components that provide the coating with high strength and moisture resistance.

Prices for various types of building paints

Construction paints

Calculation of the amount of paint for painting decorative plaster

Careful preparation for the painting process, including the correct calculation of the amount of required material, will save you from annoying incidents during working hours. On any can of paint, its approximate consumption per 1m2 is indicated. But in the case of decorative plaster, it is necessary to take into account the depth and complexity of its relief, since these parameters are the main criteria in assessing paint consumption.

How to determine the required amount?

1. Calculate the total surface area: the length of all walls is multiplied by the height (the distance from the base to the cornice).
2. Consider the need to paint the slopes of window and door openings and calculate their area in the same way.

3. Sum the obtained values. Let's say you get the following result: 120m2.
4. Find out the average consumption of the selected paint on 1 m2 of surface (indicated on the container of the selected material). For example, for most alkyd paints, this figure is 150 g / m2.
5. Multiply the total surface area by the average paint consumption: 120m2 x 150 g / m2 = 18,000 g / m2.

   The resulting figure is converted into kilograms: 18000 g / m2 = 18 kg. This is an average paint consumption per 120m2 for decorative plaster with shallow relief.

6. If the pattern of the finishing layer is complex and uneven, the resulting figure is multiplied by 0.2-0.4.

   That is, they increase paint consumption by 20% -40%.

7. With a two-layer coating, the average indicator indicated by the manufacturer on the packaging of the material is additionally included in the calculation of the consumption (for the calculated area of ​​walls and slopes).

This gives the approximate amount of paint required to paint decorative plaster for a particular facade.

Tools and equipment

To paint the facade, it will be necessary to erect the woods. It is impossible to carry out high-quality wall decoration with a ladder.

The same equipment is required for applying decorative plaster, so when painting, there should be no problems with finding material for the construction of scaffolding and walkways. They must be in stock.

Scaffolding prices

Scaffolding

The painting tool is chosen depending on the preferred painting technique. Brushes allow you to apply the covering layer more accurately and evenly, but with a significant amount of work, it is unprofitable to use this tool, since when using it, the duration and laboriousness of staining increases significantly. However, with some decorative plastering techniques, brushes are necessary.

For applying a single color layer, rollers with a short handle are most often used. These tools allow you to handle large volumes of surfaces without much difficulty. Roller application does not require any professional skills. The only thing worth considering: if this tool is mishandled, smudges and stripes of different shades may form. In order to avoid these troubles, you need to act in strict accordance with the step-by-step instructions below for painting decorative plaster.

Another popular tool in this type of work is the spray gun. It is excellent for even application of a single color layer on the facade. When working with this tool, it is important to observe one condition: keep it at the same angle in relation to the wall throughout the entire paint application phase.

Prices for pneumatic airbrushes, spray guns, texture guns

Pneumatic airbrushes, spray guns, texture guns

Depending on the selected facade design, you may need :

• masking tape;

  

  Masking tape (crepe)

• plastic and rubber spatulas;
• paint brushes for hard-to-reach areas (deep-textured plasters require long-haired brushes);

  

  Long-haired brush

• dry or wet rags;
• paint tray;
• foam sponges.

  

  Sponge for applying paint

  

  Foam sponge

"One-pass" decorative plaster painting technique

"One-pass" painting technique is the simplest, but it is only suitable for a relatively smooth finishing layer with a small amount protrusions and recesses.

To apply paint, a roller with a fur coat with a pile of medium or maximum length is required.

When choosing this tool, consider the depth of the grooves in the decorative plaster.

One-pass paint is used for the first coat of a two-coat paint job. Therefore, this method can be considered basic. It is the basis for the use of various decorative techniques, which provide the plaster with an even more effective appearance.

One-pass staining technique

Step 1. Preparation of tools and equipment.

At this stage, the strength of the scaffolding and stairs used as supports when performing work is checked. Determine which container will be used for paint: a bucket (when working with a brush) or a tray (when working with a roller).

If the tray cannot be used, pour the paint into any suitable stable container.

A piece of plywood, hardboard, thick thick cardboard is suitable for rolling a roller. Determined with the length of the handle for the roller and choose the option that is most convenient in a particular case.

Step 2. Ink set.

Dip the roller into a container with paint so that it is immersed in 1/2 of the coat.

Take out the roller and roll it 2-3 times on a special platform on a tray or a piece of plywood.

Step 3. Paint application.

Bring the roller to the wall and hold it with uniform pressure from bottom to top or top to bottom. Thus, paint is applied in even stripes.

Moreover, each next one should go to the previous one by at least 3-5 cm. In places where the relief deepens, they tend to make stronger pressure on the wall surface.

You can also use the following technique: apply a thick layer of paint with a brush and shade it with a roller, evenly distributing it over the part of the wall.

Two-layer painting of decorative plaster

The most effective surfaces, to which the technique of two-layer painting is applied. To give the facade a special expressiveness, two paint colors are used.

Moreover, the first base layer can be either darker or lighter. Its application is carried out in accordance with the "one-pass" technique.

The second layer is facing. Various decorative techniques and techniques are used to apply it. All of them are available for a novice master with no experience in painting decorative plaster.

Technique "dry brush"

With the help of this method, an effective surface "gold", "metallic", "bronze" is obtained. This technique is also suitable for applying paint in two colors or shades of the same color. To get the job done, you need a paintbrush with short, firm bristles and a paint tray.

They start finishing without waiting for the base layer to completely dry: 2-3 hours after its application. The time interval depends on the type of paint selected.

The technique is as follows:

• immerse the brush in the paint for 1/3 of the bristle length;
• apply point strokes at a distance of 30-40 cm from each other;
• rub thoroughly brush the paint on the wall without picking up a new one.

When doing the work, they do not cash in on the brush, but strive to grind the paint as evenly as possible. It is important that the second layer is distributed only over the protruding parts of the decorative plaster relief. Thus, the coating will be given a special expressiveness due to the visual effect of a greater depth of grooves and grooves.

Instead of a brush, you can use a foam sponge or a fleecy mitt.

After the paint has completely dried, the wall can be covered with beeswax, which will give the facade an even more stylish look.

Prices for textured rollers

Textured rollers

"Blurred" decorative technique

"Blur" is a more complex method of applying a finishing layer when painting decorative plaster. It will also require significantly more paint consumption than when using the "dry brush" technique. To complete the work, you will need a damp cloth or foam sponge.

Step 1.

On a completely dried first coat of paint (often a lighter color), apply a second coat using the "one pass" painting technique.

Step 2. After painting, wait a while until the paint begins to harden. Without waiting for its complete "setting", they start washing. To do this, lightly erase the paint from the upper layer of the relief so that the base, lighter (or darker) layer becomes visible.

Use a damp sponge (rag).

This method of decorating a plastered surface is used if the base layer is applied with moisture-resistant paint. Or, even more conveniently, it consists of a pigmented plaster mix.

An effective and inexpensive way of painting decorative plaster with water-based paint

This method, invented by folk craftsmen, will allow you to get an effective surface of the walls with little financial and labor costs. To complete the work you will need:

• plastic or rubber spatula;
• water-based paint;
• brush.

Technology for staining decorative plaster

Step 1. Tint the wall in the selected color using the "one-pass" technique. Wait until it dries completely.

Step 2. Apply a small amount of lighter or darker water-based paint with a brush.

Step 3. Immediately after application, start rubbing the paint over the wall surface using a plastic or rubber spatula. The directions of movement can be different: diagonally, vertically or horizontally. It is important that the paint layer is of a minimum thickness and evenly distributed over the wall section.

Step 4.

Continue to rub the paint over by applying dots near the treated surface. Thus, the entire area of ​​the decorative plaster is covered.

Step 5. Continue work until a bright expression is achieved relief of decorative plaster. The grooves should remain light and the ridges darker.

This effect will persist even after the water-based paint has dried. The expressiveness of the relief can also be achieved if the composition is applied in the same color as the base coat.

Various stencils can be used to decorate facades. This technique allows you to obtain buildings of unique beauty, which will invariably attract admiring glances.

Video - How to paint the plastered facade correctly