Gypsum plaster:
characteristics. Any plaster has its own characteristics, and is also suitable for use under certain conditions. Let's list the advantages of a plaster mixture.
- Economical and easy to use. If the surface, plastered with cement plaster, requires the application of at least 4 layers, then gypsum - two enough.
- Provides high adhesion( adhesion of the material to the surface).
- Optimal in terms of time and effort. Unlike cement plaster - gypsum dries much faster. The average consumption of gypsum plaster is about 10-13 kg / m2.
- Plaster on gypsum base does not form cracks and does not shrink.
- It has a much greater elasticity, due to which the desired result is achieved.
- Easy and convenient to apply, just flattened and does not slip off the surface.
Composition of gypsum plaster
Plaster consists of a mixture of gypsum with modified and natural additives( mineral components).Modified additives of water-soluble polymers come from the leading manufacturers in Europe. It is this composition and production technology of gypsum plaster that provide high performance characteristics.
Often many consumers are interested, can plaster be made by hand? Yes, it can. But the best quality will be plaster universal plaster, made in the factory. Since it is there that the exact proportions and consistency are calculated, most suitable for application. Therefore, to the question: which gypsum plaster is better? The answer is - factory.
Gypsum plaster: application
It is used for plastering ceilings and walls inside the premises. Gypsum plaster is applied in the bathroom, in the kitchen, in the corridor, in the living rooms. Most often these are rooms with normal and high humidity.
Gypsum plaster is needed mainly for leveling walls and ceilings and is not intended for decorative finishing. If it is necessary to somehow decorate the walls, then a second layer is applied a special decorative plaster( or gypsum decorative), imitating this or that surface.
Application technology
For ordinary users who did not previously deal with any plaster, the question arises - how to apply gypsum plaster? For this purpose we will describe a brief technology.
To begin with, the surface is prepared - cleaned and leveled with a primer. Next, prepare a mixture of plaster according to the recipe indicated on the package. Work can begin at an air temperature of 18-23 ° C and a humidity of about 60%.The substrate must be dry with a small incision( for better adhesion).
Apply gypsum plaster with a wide spatula in two ways: "by throwing method" or "from the bottom up".After the application, the walls are leveled with gypsum plaster. This is done with an aluminum rule with bevelled edges. The rule is pressed against the beacon guides and begins to move it from the bottom up.
Surplus of the mortar in the leveling is removed and the spatula is returned to the container for subsequent use. Most often, when applying one layer, the proper result can not be obtained, so the procedure is repeated again. However, the second layer should be applied only when the first one has dried up.
In some cases, to create an original design is used plaster decorative plaster. It provides not only an excellent appearance, but also excellent consumer characteristics( as well as conventional gypsum plaster).
