Many owners of houses, cottages are interested in whether it is possible to use varnish as a coating for plaster and which solution is best suited for finishing already plastered walls. Only a person who is well versed in construction and repair can often answer these questions.
The advice of professionals will help to understand what is a varnish for decorative plaster , how to choose and apply it. This will allow you to perform repairs quickly and efficiently. The finish will be beautiful and durable.
What is varnishing for?
First, you just need to figure out why varnish is used for decorative plaster, is it possible to do without this procedure at all.
Experts say that today there are many materials for sale for interior and exterior decoration. One of them is varnishing. This process is needed for several reasons:
- Well strengthened materials that play the role of the foundation.
- The finish is protected from moisture, which can penetrate the product and harm it.
- Wax, varnish for decorative plaster prevent chemicals and other substances from getting inside, various mechanical damages.
- Mold cannot penetrate the finish, develop inside this material.
- The varnish can very well maintain its original shape, so the facade will be durable, beautiful for a long time. Manufacturers guarantee the preservation of colors, their saturation.
Thanks to varnishing, the surface can not be washed off during repeated cleaning. Even, on the contrary, it becomes brighter and more attractive.
Use of solution
Studying what varnish to cover decorative plaster, you should consider all kinds of means. They are selected strictly taking into account what qualities the finish should acquire.
Indoors, it is better to use products that do not cause much harm to the environment and differ in a rather safe composition. And external work can take place using any varnish. It can be classified by composition, which is basic, by decorative properties, by drying time, and so on.
Almost any composition bought in a store is well suited for plastering. The only quality that needs to be considered is that the varnish be created exclusively for working with plaster. There are many varieties of formulations presented.
Acrylic lacquer
For construction or repair work indoors, varnish for decorative water-based plaster is perfect. This is an acrylic composition. Its basis is water.
The advantage of the materials presented is the absence of odor. It can and should be used in various rooms. Acrylic mixes can perfectly paint over even textured surfaces, giving them the required glossiness.
Acrylic varnish for decorative plaster is a liquid of delicate milky hue. When it dries, a protective film is created that does not affect the main color. Under normal conditions, the liquid dries in three hours. If necessary, you can dilute it with water. The layer in this case will become thinner. Water-based acrylic varnish is resistant to ultraviolet and other adverse effects.
Polyurethane varnish
Another solution for interior decoration is polyurethane varnish for decorative water-based plaster. Usually it is used to cover wood surfaces. The composition has high strength and moisture resistance.
Water in the composition plays the role of a solvent. It provides high environmental performance, which makes the varnish safe for use in residential premises.
Front materials
Facade varnish for decorative plaster is highly resistant to adverse weather conditions (rain, snow, wind, etc.), as well as various chemistry.
Based on aesthetic properties, several popular varieties of the materials presented can be distinguished. Today for the decoration of facades are used:
- Gloss varnish. Repels dirt and water.
- Matt varnish. Suitable for embossed surfaces, can support the natural look of the finish.
- Craquelure. It creates the effect of an old surface. His responsibility is to create decorative cracks.
- Pearl varnish. It shimmers very beautifully. Such coverage is considered the finish.
There are also silver varnishes, as well as gold ones. However, they are often used to create small accents, staining of small details.
Application
To work with varnish go to the final stages of decoration. But before you start covering the walls, you need to properly prepare the base. These jobs can take a fair amount of time.
It is required to prime the base first. This will give the required tenacity to the connection of the varnish with the wall material. Then you can apply the solution. Each of these actions requires a certain time for the layers to dry. If two-layer processing is carried out, it is necessary to color the walls.
Varnishing
It is highly recommended to primer already plastered walls for better adhesion of the final or, as it is also called, the finish layer. It is necessary to apply two or three layers. You should also choose the right primer. It will help to avoid the appearance of such trouble as mold.
After that, you can proceed to work directly with the varnish. Solutions are generally ready-made served in stores. Mixtures that are very thick should be diluted with water at ten percent. Before you start using the mixture for its intended purpose, it must be thoroughly mixed so that the consistency itself is homogeneous. If the product consists of two components or is intended for tinting, pigment is added strictly according to the instructions.
Depending on what the final result should be, choose how to apply varnish to decorative plaster. In conventional staining, the spraying method is most suitable. The advantage of this method is the ability to reduce material consumption. They are not so cheap. The layer itself will be even. Take small breaks to dry the layers.
To get a decorative effect, you need to use tools such as a roller or brush. Work in this case requires more time, materials. Of course, there are such unusual methods of correct application that they are often used only by professionals.
Having considered the features that the varnish for decorative plaster possesses , you can correctly select and apply the composition to the surface. If you follow all the rules, you can do the job well without builders. In the future, the decoration will not need any restoration or even replacement.