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August 12, 2017 18:08

Types and the maximum thickness of the plaster to create a flat surface

common classification of mixtures and application stages

There is a fairly rigid system, which allows you to calibrate the field of application of each type of plaster mixture, depending on its composition, purpose and specifics of the operations.By purpose they may be special (insulating, protective), decorative or textured, and simple, and their composition varies depending on the intended binding properties and manufacturer specifications.

Before proceeding with plastering, it is important to study the construction requirements and regulations technologically to work properly with a particular mixture on a variety of surfaces.This information is usually available in industrial packaging.The most important rule in working with any materials to equalize different surfaces - layering and natural drying of the plaster.

The average thickness of the layer of plaster to wood surfaces is not more than 20-25 mm, for brick and concrete - 10-25 mm.Apply the mixture should be gradual, gradually approaching the recommended thickness to avoid splyva solution during drying or cracking after the final drying.

number of layers and their application of the technology depends largely on the composition of the mortar and the quality of finish provided for each variant application process is different.The technology consists of three main stages:

  • for a simple surface treatment only two layers - the scratch coat and primer;
  • for improved - three layers - scratch coat, primer and finish coat;
  • for high-quality finishes, in addition to the three main layers must be applied is also an additional layer of soil.

Surface preparation and the maximum allowable thickness of the decorative plaster

Decorative mortar - the most difficult work, becauseIt requires careful surface preparation that will eliminate the cracks and crumbling solution after drying.Therefore, the technical process of surface preparation - special sacrament.The first step is to clean the structure from excessive dirt and dust, clean cement ledges, make sure there are no height differences vertically and horizontally.Next, apply a base coat.

After drying base should jot down a dirt mixture.To improve the adhesion between the layers of the surface should be slightly moist, so avoid the final drying basecoat should not be.After the primer has dried, it can be done at the notch, and then apply the texture of the instructions.The thickness of the plaster layer is largely dependent on the grain size and the filler ranges from 8 to 17 mm.

technology application improved plaster mixture

When working with plaster improved workflow and the number of layers remain unchanged.To exclude cracking, blistering and peeling of the plaster, you should strictly follow the manufacturer's recommendations and prevent waterlogging, pollution and exceeding the recommended thickness.It is better to apply an additional base coat if the surface is rough and has a lot of swings and depressions.

technologically acceptable thickness improved plaster, wood should not exceed 9 mm, 7 mm lime-plaster solutions and 5 mm for concrete, brick or stone foundations.After applying the last layer align its spreader or trowel, and then after drying, rub a felt or mesh grater.

Apply cement plaster

first impingement mixture is put crudely, the technology does not require careful surface alignment.Before applying the next layer the solution should be given to dry base layer, it takes 18 to 36 hours, depending on its thickness.Working with a cement mixture, to strive for perfectly flat surface is not necessary, because, as a rule, this type is used for finishing subsidiary, warehouses and basements.

in residential and common areas cement plaster is not used as a topcoat, it is usually necessary to remove surfaces for laying tiles or for applying a building material.

It should be noted that the thickness of the cement plaster should not exceed 10-20 mm, each layer must dry thoroughly before you can proceed to the next application.In strict compliance with all of the manufacturer's recommendations and the building codes, you will achieve the desired result and can easily prepare the surface of the walls or the ceiling for painting or tile.