Choosing plaster
Drywall can be plastered with different materials that are different in composition and properties. For wall and ceiling gypsum boards, only those solutions that do not contain water or include a minimum amount of it are allowed to be used. Polymer compositions are suitable for all sheets, and cement ones are only suitable for moisture-resistant ones.
Gypsum plaster
The material is used in dry rooms, as it contains gypsum, which does not tolerate moisture well. Gypsum-based plaster is well suited for gypsum board sheets, as it has a similar composition, quickly sets and hardens. The advantages of the gypsum mixture are as follows:
vapor permeability, no impact on microclimate;
environmental friendliness and fire safety;
light weight, versatility;
ease of mixing, application, restoration of damaged areas;
minimal shrinkage, no cracks;
low consumption.
Gypsum plaster composition Volma
In addition to hydrophobia, gypsum plaster has croatia mobile database disadvantages - reduced frost resistance, too fast hardening of the solution, the impossibility of adding the mass in large portions at once.
Cement plaster
The main component of such a building mixture is Portland cement. Sand, plasticizers, and various additives act as additives. Most cement plasters are considered frost-resistant, so they can be used for outdoor work. They quickly and firmly adhere to the base, are easy to dilute and apply, durable, and resistant to moisture. With the help of cement mixtures, you can give moisture-resistant plasterboard additional protection from water.
The disadvantages of such plasters are:
heavy weight, unsuitable for thin plasterboard sheets;
long-term development of final strength;
poor vibration tolerance.
Modern polymer compositions
Polymer plasters are an invention of recent years. They can have a gypsum or cement base, but their properties are still determined by the added polymer materials:
acrylic;
silicone;
siloxane, etc.
Acrylic-silicone plaster
Moisture-resistant composition Weber.Vetonit on a cement base
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