Gypsum plaster for external work

Gypsum plaster is applied to surfaces to prepare them for a decorative coating and to align horizontal and vertical planes.

This kind of finishing material blends in well with decorative coatings and is suitable for both interior and external applications.

Furthermore, plaster made of gypsum is environmentally safe, stays put even after drying, and has the required flexibility, which is why it has been used historically to cover concrete walls and other surfaces.

Advantages of gypsum plaster

Modern gypsum finishing materials are the most promising and cutting edge. The high speed at which surfaces can be plastered with their assistance contributes to the widespread use of gypsum-based facade compositions for both internal and external work.

Additionally, as advantages, one can recognize:

• simplicity of application (compositions can be applied to one layer, to perform high -quality finishes, only a tool and the correct sequence of work are needed);
• high elasticity (compared with cement compositions);
• low tendency to crack;
• affordable cost (gypsum plaster is available to all segments of the population);
• external attractiveness;
• the ability to give a different shade and texture;
• protection of the thermal insulation layer from moisture penetration;
• frost resistance and resistance to corrosion.

The primary component of this kind of plaster, called GIPS, is a naturally occurring mineral that is perfect for establishing a cozy microclimate.

The following qualities of gypsum plaster are made possible by this ingredient:

• thermal stability;
• Fire safety;
• strength;
• maintaining a comfortable indoor microclimate;
• long service life (gypsum-based plasters do not shrink, do not crack, and a “wrinkled” pattern does not form on plastered surfaces);
• excellent heat and sound insulation;
• suitability for applying decorative finishing (surfaces plastered with gypsum compositions do not require additional putty, the finishing can be applied immediately);
• lightness and elasticity (gypsum plasters are perfectly distributed over the surface).

Types of gypsum plaster

The primary ingredient in gypsum plaster is, as the name suggests, the binder gypsum component, to which other ingredients are added to change the desired properties.

Three types of gypsum finishing materials can be distinguished based on their composition for both internal and external work:

1. Fine -grained gypsum plaster. In addition to the gypsum base, it includes dull sand, due to which cracks can appear on the surface after drying, so it is preferably applied such a composition with a thin layer, not more than 8 millimeters.
2. Medium -grained gypsum plaster. This is the most popular and demanded option. Due to the medium -sized filler, such a composition can be applied up to 5 centimeters thick.
3. Coarse -grained gypsum plaster. This option is used when plastering surfaces is required with a thick layer. Such a composition will, in particular, is useful in the repair of broken slopes during door replacement.

For work in the room, gypsum compounds are typically utilized. Nonetheless, manufacturers now successfully create gypsum-polymer and gypsum-mineral plaster facade compositions appropriate for exterior work.

Thus, silicate brick masonry, gypsum concrete surfaces, and dense concrete thin-layer alignment are all accomplished using gypsopolymer compounds.

Due to the polymer modifiers, these solutions can already be used for facade work, increasing the plaster’s strength and resistance to frost (many times higher than that of regular gypsum compositions).

Polymer additives improve plaster’s elasticity, clutch with surfaces, and structural integrity. It should be mentioned that polymer-gypsum mixtures must be dried out over an extended period of time.

Additionally, gypsum-mineral plasters are used for external works such as facade decoration. Mineral plasticizers that are added to the gypsum base function as extra binding components. They enable the mixture to become more malleable and resistant to outside forces.

How to choose a gypsum mixture

As was already mentioned, there are various plastering solutions. Each of them has unique stamps, characteristics, and application requirements.

But there are two basic categories into which all gypsum plasters currently in use can be placed. The first is a combination for exterior work, such as plastering the basement, doing facade work, and painting the walls of humid rooms. The second is a combination used for internal tasks that are completed in environments with low to medium humidity.

Gypsum shouldn’t be saved on materials when using plaster plaster for both interior and exterior work.

Plastering may need to be redone if low-cost, inferior mixtures are used. Unwanted outcomes may also mean that the plaster mix that was chosen will not be utilized for the kind of project for which it was designed.

Dry mixtures can only be dissolved with pure tools and in clean containers to make plaster. Pay close attention to the instructions and make sure that the mixture to water ratio is precisely followed.

If you wish to paint the plaster a different color, be sure that the paint or other coloring material complements the composition of the gypsum mixture. If not, the properties of the mixture that is created may fundamentally differ from what the manufacturer has stated, leading to an extremely unexpected outcome.

Water and other solvents shouldn’t be added to a solution that is already ready for use. In order to achieve excellent plastering results, the plastering surface needs to be thoroughly dried and free of any debris, fat, dust, or paints that may impede the quality of the clutch.

Whether the work will be done in a room or outside, you should carefully read the label on any gypsum plaster before purchasing it. A dry mixture’s composition, quality, and characteristics determine its price.

It is preferable to pay attention to details about manufacturers and select reputable businesses rather than the amount of money involved.

Currently, the most well-known producers of gypsum compositions are "Volma," "Bergauf," and "KNAUF."

These businesses create premium, eco-friendly mixtures for facade and interior work that enable plastering to be done repeatedly.

Among the benefits are a long service life, good adhesion, and a high water-repellent ability. Examine the offerings of each of these businesses independently.

With its gypsum mixtures, this company gained the trust of customers and has been well-known on the Russian market for over 20 years.

It is hardly surprising that the company’s name is now connected to excellence. This German company manufactures a fairly wide range of plastering mixtures for both internal and external works, and it is a supporter of traditional recipes. The most popular gypsum mixture for facade facing is Rotband, which is made by the KNAUF company using a traditional recipe.

It is somewhat more difficult to work with and takes a little longer to dry than, say, the Volma company’s plastering mixture. Due to the German company KNAUF’s current level of popularity, it is preferable to buy a variety from reputable stores as there are many imitations available.

It is safe to say that this company’s plastering mixtures rank second in the industry, behind Knauf. To get here, the manufacturer was assisted by a low material consumption, a lightweight recipe, and simplicity and ease of work. The Volma is currently utilized outside and in spaces with high air humidity.

This company uses a specially designed formula for their gypsum plaster that permits the use of organic additives. These innocuous additions cause the plaster’s output to rise and its cost to fall.

Because of its "oilyness," working with such a mixture is fairly straightforward. Its lengthy drying time and occasionally poor moisture resistance are drawbacks. Plastered surfaces therefore require an additional layer of special paints and mixtures.

The Bergauf company offers a large selection of stucco for internal and facade projects. She creates premium, versatile compositions that work well with both hand and machine plastering.

As extra benefits, one can recognize:

• elasticity;
• drying speed;
• A great ratio of quality and cost;
• High adhesion.

How to breed gypsum plaster

In the event that the gypsum plaster is provided as a dry mixture, the contents of the package must be poured into a container with water at a ratio of half a liter per kilogram of the mixture in order to dilute the solution.

For uniform consistency, the mixture is then combined using an electric drill fitted with a special nozzle or mixer. The mixture is redone with the solution after five minutes. It is preferable to breed plaster in portions when working with voluminous planes, as the completed solution needs to be used for thirty minutes.

Plaster is applied by machine, which helps to cut down on labor costs and the amount of time needed to complete facing work. It offers uniform distribution, strong adhesion of the applied solution to surfaces, and prevents cracks from forming as it dries.

In order to accomplish this, a dry mixture is put into a special machine’s mixer and combined with water. Subsequently, the resultant solution is applied to the working plane by passing through the hose into the plaster pistol. Good ventilation is provided by rapid drying.

Application technology

A working surface needs to be ready before plastering. In order to do this, the base is cleared of all debris, including fat, dust, and layers of old plaster, and it is primed with an adhesive primer.

Next, using a special mixer, 30 kilograms of plaster are dissolved in 18 liters of warm water. If one person is going to work, it makes sense to proportionately reduce the volume of the solution’s components because the plaster solution freezes after thirty minutes.

Using a spatula, approach a plaster solution from the bottom up on a previously cleaned and primed surface. After processing each square meter, it makes sense to align the mixture with a spatula.

Wet stucco should occasionally be scraped up with a spatula because it typically shuts down. A unique grater is used to smooth the treated surface 15 to 20 minutes after application. You can wet the façade again and use an ironer to make amends over the course of the following day. This gets rid of all kinds of flaws, like shaking, bullying, and subtexts.

The end product is a coating that is flawless. If the tile is going to be installed on top of the plaster, then secondary smoothing is not necessary. Plaster needs to be primed before being decorated decoratively. The surrounding humidity affects when the plastered surface should be dried. A two-centimeter layer of plaster will take one to three weeks to dry.

For external work, gypsum plaster provides a flexible and long-lasting way to improve the resilience and beauty of building facades. Both architects and builders favor it because of its lightweight design and simplicity of use. Beyond just being beautiful, gypsum plaster ensures that buildings last a long time and use less energy because of its superior thermal and weather resistance. This article examines the advantages of applying gypsum plaster to external surfaces, emphasizing how it can improve curb appeal and support environmentally friendly building methods.

It has long been possible to accomplish both indoor and outdoor projects with gypsum plaster. Contemporary stucco solutions are made stronger and suitable for facing facing cladding thanks to the use of unique gypsum-polymer mixtures.

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