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August 12, 2017 18:08

Finishing stucco, what is it and what you need to know about it

Finishing plaster for what it is

First of all you should know that the finish plaster depends not primarily on the composition and the consistency and dispersion.Even if you are working with a cement-sand mixture, finishing layer will contain the same components as the draft.But still plasters for finishing is quite different, if we talk about the main components.In other words, there is a mixture of fine sand-cement, cement-lime plaster and acrylic-polymer.

Many prefer to use for the final finishing claydite mixture, however, any expert will tell you that there is best adhesion between the layers of the same composition plaster.As an exception, the mixture can be applied to components other than those contained in the previous layer, only provided that the basis of the composition will more durable.However, the rough ground made plaster finishing can be anything, and on top of it will fall beautifully decorative acrylic polymer plaster.

Since it is not always possible to use two plaster of differ

ent composition (roughing and finishing), it is useful to know that the composition of the "finishing" ukryvki (most smooth layer) contains the same components as willows scratch coat with the ground (the first two layers)but with a few changes.For example, in the cement-sand plaster final stage is the application of very fine sand mortar.Cement-lime mortar for finishing must contain more lime than the previous layers, to improve the plasticity of the mixture.

Finishing composition always contains components with the most fine grain, so you can create a perfectly smooth surface.

Finishing plaster walls in a standard way

You probably know that the very first layer of plaster (scratch coat) is performed with a solution, which resembles the consistency of sour cream, then there is enough liquid to just napleskivat mixture on the wall.The second layer, called the ground, the most solid, it looks more like a batter and applied shpvtelem without much effort to give it a smooth, on the contrary, it will allow the rough texture firmly lay down the final, finishing layer - ukryvki.If the thickness of the first layer not exceeding 4.3 millimeters, and the second should be no thicker than a half centimeters ukryvki the thinner, the better.Ideally this layer should be 1, the maximum - 3 millimeters.

To prepare the final stage of finishing the two spatula, narrow and wide.The first solution was scooped out of the container, for example, a bucket, although much more convenient to use a wide tray with low sides, and the second spatula broad mixture is applied to the wall.wide spatula Movement should be continuous, from the bottom up, the broader trajectory of motion spatula, the smoother will layer of plaster.Remember, because of the high density of the finish plaster walls fit for rough layer is always final and not subject to removal, it can only be sanded after the final drying.By the way, plastering machine is always more smooth, and often does not require polishing.

elastic plaster as a special version of the outer wall decoration

House have to finish not only from within but also from outside, and the plaster is sometimes the best option, taking into account the climatic factor.The outer surface of the walls are subjected to numerous tests not only by rainfall, constant exposure to sun and wind - is an ongoing check on the strength of plaster.And very often finish losing ground, covered with cracks and obvalivayas result.However, recently the market has become widely available elastic facade plaster, the use of which greatly increases the service life of exterior finishes.The structure of such a plaster includes acrylic polymer, giving it tremendous flexibility.

firmly adhering to the Draft layer, elastic plaster covers it like a rubber film and, in the case of increasing the voltage on any section of the wall topcoat just slightly stretched, while in any other case there would be a crack.Given that this material has a basis aqueous dispersion is applied solution is very simple, and there will be no splashing around in the correct consistency.In other application method is not different from that of a conventional gypsum plaster - spatula should be kept at an acute angle to the surface, tightly pressing, rubbing the composition just rough surface.With continuous movement of the tool even layer will be guaranteed, but avoid to miss even the smallest section of the wall, in this place in the future elastic plaster give slack.