Glass-magnesite sheet, the application, the disadvantages of which will be presented in the article, is a modern building material having excellent quality characteristics. It has the widest scope in the implementation of internal and external finishing work. A number of builders believe that these canvases, which are also called magnetite, represent a worthy alternative to drywall. That is why you can think about what to choose - glass-magnesite sheet (LSU) or drywall (gypsum board).
The first material is superior to the second in a number of indicators. Home masters and representatives of professional companies most often use standard materials, due to the lack of information about new solutions. However, magnetite can save money and time during work.
general description
The glass-magnesite sheet, the application, the disadvantages of which will be described below, has an interesting structure. It contains magnesium oxide, perlite, magnesium chloride, as well as fine wood chips. In the production process, fiberglass mesh is also used. Different manufacturers differ in the percentage of ingredients, this is due to different classes of material. Among them can be distinguished "Premium", "Standard", "Economy class". If you want to use more durable sheets, then you should prefer those that have a high content of magnesium oxide. As a rule, a glass-magnesite sheet, the application, the disadvantages of which are described in the article, contains MgO in an amount of 40%, this refers to a premium product, while MgCl 2 is added in a volume of 35%.
Structure Features
The material is made in the form of sheets, the thickness of which can vary from 4 to 12 millimeters. The most common dimensions of the canvas are 2440x1220 millimeters. The outer side of the canvas has a smooth surface, it does not require additional processing, you can immediately paste wallpaper on such a base, and then apply paint. As for the side, it is more rough, as it is not sanded. Sheets can be installed on either side. Most often, LSU is installed outside with the back for plastering, which is due to more impressive adhesion qualities.
Area of use
If you are interested in LSU (glass-magnesium sheets), what it is, where and how to apply it, you definitely need to find out before purchasing the product. The described material has a wide scope, it is used for decoration of residential, industrial and public buildings. In private construction, LSU are used when necessary to install arches, walls, partitions, false ceilings. This material can be used in the decoration of slopes, communication shafts, the installation of ceilings. It is convenient to use sheets as fixed formwork for pouring lightweight concrete. With the help of glass magnesite, the external walls of houses are finished with the subsequent application of finishing materials.
Main advantages
If you are interested in LSU (magnesite plate), its composition, advantages and disadvantages you should know before the start of work. Among the advantages are moisture resistance, low weight, flexibility, resistance to biological effects, as well as a wide range of applications. Sheets perfectly cope with exposure to chemicals on their surface. Consumers choose this material also for the reason that it is environmentally friendly, resistant to frost, long life, durability and fire safety. In the latter case, glass-magnesite sheets are superior to similar materials. The canvas does not burn even at a temperature of 1200 degrees. In terms of combustibility, it can be attributed to the highest class A. Materials such as metal, stone and concrete belong to it.
What positive features are still worth paying attention to
Glass-magnesium sheet (LSU), the application, the characteristics of which are mentioned in the article, does not delaminate, does not swell and does not deform, which is true with a sufficiently long exposure to moisture. The material perfectly resists conditions with high humidity, which indicates the possibility of using sheets in baths, saunas, pools, as well as in basements.
For use in conditions with a high level of humidity, an important factor is another characteristic, which is biostability. The surface of the paintings is resistant to fungi, mold, insects and bacteria. SML acids and caustic alkalis are not harmful. You can count on the high strength of glass magnesite, which reaches indicators of 16 MPa in bending. It is convenient to work with sheets, as they are easily cut and do not crumble, and also do not crack.
Fixation can be done using nails, self-tapping screws, and also use a pneumatic gun. Canvases can be drilled. If you are interested in glass-magnesium sheets, the pros and cons of a drywall analog should definitely be considered. Among the positive features of the described material, one can also distinguish a very small weight, which is 40% less than that of GCR.
Frost resistance and durability
If you need a material that has a high frost resistance, then LSU just meets these requirements. Its frost resistance is F50. The loss of mechanical strength is not more than 3.5%. In the production process, fiberglass is used, which performs reinforcing functions. This provides excellent flexibility and prevents fracture during transportation and during installation.
Quality of durability and environmental friendliness
Manufacturers promise that LSU will last for 15 years or more. The final period of life will depend on the correct installation, as well as features of operation. When using, you can not be afraid that the canvas can affect negatively on human health. This is due to the fact that the sheets do not contain harmful ingredients such as formaldehyde, asbestos, phenol, etc. The material is not capable of causing allergic reactions, therefore it is classified as an ecological product that can be used even in medical and child care facilities.
Cons LSU
If you decide to use a glass-magnesite sheet, the application, the disadvantages of this material is also important to find out. Among the latter, some features of low-quality glass magnesite can be distinguished. When wet, it is able to release salt, which can cause corrosion of the metal. Low-grade material can be used exclusively for internal finishing work, which implies the absence of high humidity and sudden temperature changes. One cannot but pay attention to the difference in quality depending on the class. When comparing Premium lines with Economy, the former has a more impressive magnesium oxide content. Among other things, top-class goods are manufactured using high-quality fiberglass mesh, in which there are fewer cells. Such a material has a denser structure and increased quality of fire resistance, as well as frost resistance.
Quality glass magnesite
If you are thinking about how to distinguish a high-quality glass-magnesite sheet, then you need to pay attention to the color, which should be beige or yellowish. The edges of the materials should not be brittle, and the water after exposure to the sheet should not become cloudy.