Volma layer plaster detailed technical characteristics

Professionals and do-it-yourselfers alike favor Volma layer plaster when it comes to attaining a smooth and long-lasting finish on their walls. This kind of plaster is the preferred choice for many wall projects because of its exceptional quality and ease of application.

Making the most of Volma layer plaster can be facilitated by being aware of its technical features. Understanding these specifics, from its composition to its application techniques, can guarantee that you receive the best results for your wall plastering requirements.

We’ll go over the main characteristics of Volma layer plaster in this post, along with how it performs and contrasts with other kinds of plaster. Whether you’re getting ready for a major makeover or a minor fix, this guide will provide you with the knowledge you need to handle Volma layer plaster efficiently.

Description and properties of Volma plaster

For more than 70 years, Volma, the company that produces dry plaster mixes (henceforth referred to as DS), has been in operation. Technologists from Russia developed the products. Gypsum Volma layer is one of the plasters in the line that has mineral binders. Over 90% of this composition is made of gypsum.

This mixture, like DS from other manufacturers, includes modifying additives that increase adhesion, setting time, and plasticity in addition to gypsum. The makers of DS, of course, do not reveal the recipe, but they do alert us to the Volma layer brand technical characteristics on the packaging.

Plasterers need this information in order to select a material. This data is used to calculate the amount of raw materials needed, create process maps, and plaster the walls.

For ages, gypsum has been utilized as a binder. It is actually a naturally occurring stone that has been ground to increase the contact area while losing water due to dehydration. When gypsum comes into contact with water, it gulps it down, transforms into a solution, and crystallizes to create artificial stone.

Gypsum binder-containing plaster mortars are utilized when it’s essential to:

• level the surface of the base (rough plaster);
• monolithize joints and holes;
• protect building structure materials from external influences (protective cover);
• decorate the interior (decorative function).

Regrettably, cement-sand coatings are more durable than gypsum ones. Additionally, gypsum mortars are unstable in water, so their application is restricted to interior work and glazing loggia finishing.

However, gypsum has the following benefits:

• lightness (low weight gives less load on the base, which is important, for example, for ceilings);
• shrinkage-free (used where the base is made of weak materials);
• greater plasticity (the absence of sand filler allows the surface to be brought to a high degree of smoothness);
• ease of placement, which allows even narrow gaps to be completely successfully filled;
• comfort of people in rooms with gypsum finishing;
• the ability of wall materials to breathe freely;
• high adhesion;
• large coating thickness that does not require reinforcement (Volma guarantees the ability to create a coating layer up to 6 cm thick at a time).

Consumption per 1 m2 of wall

Similar to other SS, the mixture’s consumption per square meter is given for a layer with a thickness of 10 mm. The average weight indicated on the packaging is 8–9 kg. Accordingly, 24-27 kg will be needed to cover a 1 square meter flat area with mortar that is 3 cm (30 mm) thick (based on the calculation of 8 kg * 3 cm or 9 kg * 3 cm).

The plastered ceilings, walls, and partitions are actually not at all even. More mixture may be needed for filling and leveling large depressions, cracks, and joints. Curved surfaces like columns and other curvilinear surfaces also call for more dough. You can compute by using our online calculator as well.

The plasterer’s experience, the water-to-gypsum ratio (which influences the solution’s density), and the accuracy of the preparation are other crucial elements that influence the quantity consumed.

Despite meticulous measurement of the wall surface and coating volume calculations accurate to the hundredth decimal place, the estimated amount of dry mixture required will remain approximative. Plaster material is therefore bought with a 15-20% reserve.

Volma plaster layer technical characteristics

The Volma company produces a variety of SS, each with a unique recipe and set of technical specs. For instance, although they are similar, volma layer and volma plast are plaster mixtures that use gypsum as a binder.

The primary distinction between them is the caliber of the surface that is produced; the first mixture is used to create a surface that can be painted without the need for additional puttying. The mixtures with the same gypsum content differ in other ingredients, which influences the properties.

One technical factor that sets them apart, for instance, is the volume of water needed for mixing:

• Volmaplast requires 450-500 ml to dilute 1 kg of mixture;
• Volma layer requires 600-650 ml per kg of powder.

The solution consumption per square meter will increase by 1-2 kg if Volma is plastered. However, the volma layer comes at a higher cost.

The primary criteria required to select a material are shown in this table.

Table: Technical characteristics of the 30 kg Volma plaster layer

Characteristic		Value	Unit. Strength
on bending	≥1	00.MPa	on compression
	≥2	00.Temperature
of	base	≥ +5 to +30	°C
	indoors	≥ +5 to +30
Layer thickness	maximum	60.0	mm
	recommended	5.0-30.0
	minimum	2.0
Consumption	for a layer of 10 mm	8.0-9.0	kg/m2
Setting	beginning	≥ 45	min
	end	up to 180
Water consumption	For 1 kg	0.55-0.66	l
	For a 30 kg bag	16.5-19.8
Shelf life	12	month

Mixture composition

Hardware stores carry pure gypsum powder in addition to plastering compounds. But pure gypsum behaves differently from the plaster mix solution when mixed with water. For instance, building gypsum can take up to 25 minutes to "rise," whereas alabaster dries out in 5 to 10 minutes.

Clearly, this is not enough time to plaster. Retarders are added to the SS in order to prolong the life of the gypsum solution. They enable the Volma layer to solidify no sooner than 45 minutes after mixing. After 180 minutes from the time of dilution, the setting is finished. Even if you are a novice at plastering, you can apply and shape the mixture with this kind of extension.

Mineral and polymer materials are added to the composition in addition to these additives, which improves its "stickiness" (adhesion) and workability (plasticity).

Shelf life and storage conditions

The shelf life of building mixtures is a crucial feature. Dehydrated gypsum powder, which is artificially produced, is not a stable enough form because it naturally transforms into a more stable state by absorbing moisture from the atmosphere.

Over time, both the cement and gypsum mixtures lose their activity. As a result, the manufacturer’s warranty only covers the features listed on the packaging for a period of 12 months following the date of production.

Powder is stored in factory packaging in a dry, ventilated room at a temperature that is above zero. It is important to take precautions against direct sunlight exposure for the materials stacked on the pallet. The leftovers should be hermetically sealed if the packaging has been opened and the SS has not yet been used to its fullest extent.

How long does it dry

This attribute is not fixed. It is best to let plastered surfaces dry naturally (without heat guns and similar equipment). For a layer of 3 mm or 60 mm, the rate of evaporation of excess water is the same (the surface is the same), and in the second case, there is more "excess" water.

As a result, the plaster coating layer dries in accordance with its thickness, the conditions of the room, and other elements. The handbook states that a layer 10 mm thick must fully dry in 7 days, but coatings can actually dry more quickly or take longer.

Layer thickness

These are acceptable and ideal values. Thus, a minimum layer of 2 mm is permitted. The circumstances and technology for applying a layer in some locations nearly to zero are demonstrated in Andrey Shaiter’s video.

On the other hand, you should abide by the conditions that the manufacturer stipulates for trouble-free operation. Thus, the minimum and maximum permissible layer thicknesses are 3 mm and 60 mm, respectively. They generally follow ideal thicknesses of 5–30 mm when leveling.

Adhesion and strength

Gypsum’s ability to adhere to a variety of substrates is something that cement can only aspire to match. Actually, gypsum plaster adheres to somewhat rough surfaces with ease. Furthermore, the most recent version of the volma-layer permits the application of the solution without the need for prepriming. Experts advise priming the base for this mixture as well, though.

Priming actually provides solutions for a number of issues. For instance, stabilizing dust particles and fortifying a feeble base. Concrete contact works best when applying a thick layer over a smooth concrete base. It is not required to prime in order to increase adhesion when the coating thickness is almost at zero.

Gypsum for construction comes in various strengths. The type of gypsum used by SS manufacturers determines the plaster’s strength. When modifiers are used, strength also rises. Volma ensures strength in the following dimensions: compression above 2 MPa and bending not less than 1 MPa.

Frost resistance and water absorption

In dry conditions, gypsum plaster can tolerate a temperature drop of – 40 o C. The maximum operating temperature is +60 o C. This permits the use of Volma layer for plastering glazed balconies, as does the mixture’s low water absorption rate. The ideal range is +5 to +30 o C.

Thermal conductivity

The fine pores in gypsum coatings hinder heat transfer throughout the material’s thickness, which is why gypsum-based plaster has a lower thermal conductivity than cement coatings. Generally, gypsum plaster has a thermal conductivity of 0.3 at a density of 800 kg/m3. It also depends on the composition’s additives.

Release form

It’s common practice to package the mixture in craft bags weighing 25 or 30 kg. Should less plastering solution be needed, or less dry powder be needed, 15 kg bags of SS are available for purchase. Five kilograms is the minimum weight.

Shades

The SS is typically gray or white in color. Colors that are pink, yellow, or greenish are also present. These are not dyes; rather, they are the color of the natural raw materials, which varies according to the presence of specific inclusions in the natural stone and has no bearing on the gypsum mortar’s functionality. However, it is preferable to use white compounds for the "backing" if the finish is "translucent," such as thin paper wallpaper.

Characteristic	Description
Composition	Mixture of gypsum and polymers for flexibility and strength.
Application Thickness	Typically 1-3 mm for a smooth finish.
Drying Time	Usually 1-2 hours for surface drying, 24 hours for complete curing.
Coverage	Approximately 1.5-2.5 kg per square meter, depending on thickness.
Adhesion	Strong adhesion to various substrates including concrete and plasterboard.
Finish	Provides a smooth, even surface ideal for painting.

Making the right choice for your wall projects is made easier when you are aware of the specific technical features of Volma layer plaster. Professionals and do-it-yourselfers alike favor it for its performance and adaptability.

The smooth, long-lasting finish that Volma layer plaster offers makes it stand out for its simplicity of application and efficient coverage. This plaster is a dependable option that delivers high quality and dependability, making it ideal for both new construction and renovation projects.

In conclusion, Volma layer plaster is a useful addition to your wall finishing toolkit since it blends technical efficiency with an easy-to-use application. Its features guarantee long-lasting performance and durability in addition to improving the visual appeal of your walls.

When it comes to wall plastering, Volma layer plaster is a great option for both professionals and do-it-yourselfers because of its special combination of technical features. Impressive adherence, flexibility, and durability are qualities of this type of plaster that make it appropriate for a variety of wall conditions and surfaces. Its comprehensive technical specifications, which cover application thickness, drying times, and resistance to environmental influences, guarantee that it is easy to work with and produces a high-quality finish. Knowing these features enables you to select the ideal plastering product and produce a smooth, durable finish for your project.

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