This name of this material is somewhat arbitrary. The fact is that magnesite slabs are delivered to the market in the form of sheets of relatively small thickness. The products are quite new, but its technical characteristics and versatility in application are so unique that it is worth to look more attentively.
What is a magnesite plate( more often abbreviation of LSU, indicating that this is a sheet)?In fact, this is an analogue of the plasterboard known to all, but so much improved that it can compete with a number of other materials( for example, OSB, GVL, fiberboard) in many characteristics.
But in fact this is the same stuff. This discrepancy is due, probably, to the fact that LSUs are produced only in China, and already the organizations engaged in sales "call" them in their own way, to whom it seems more attractive.
Composition of
- Perlite.
- Bischofite.
- Compounds of magnesium( oxide and chloride).
- Wood( sawdust, shavings - up to 12%).
- Fillers.
Unlike GCR, there is no gypsum. During the chemical reaction, a crystalline lattice is formed from the magnesium components, which is the basis of the material. On both sides samples are reinforced with fiberglass mesh. This specific structure determines the specific properties of the PM.
Main characteristics
- Magnesite plate dimensions( typical): D - 2,28 or 2,44;N - 1.222( m).The thickness reaches 3 cm , although the most common samples, which have this parameter in the range 0.3 - 1.2.
- Density - within 1 t / m³ .This indicator is much superior to drywall, so it is often used as a "rough" floor.
- Strength( for bending) - the numerical expression of this characteristic is 2.8 times higher than for GCR( up to 26 MPa).
- Water resistance - within 98% of .It has been experimentally confirmed that when found in a liquid medium for 4 days, the material does not absorb moisture and does not change its geometry.
- The magnesite sheet does not burn ( category "NG"), is capable of withstanding thermal effects up to 1 150 ° C for 2 hours( with a sample thickness of 0.6 cm).
- Frost resistance - up to 50 cycles of "freezing / defrosting".
- Well retains heat and extinguishes noises.
- LSU meets all requirements of fire safety and ecology( does not contain harmful components).
- Longevity. Practice( since the material is new) has not yet been confirmed, but experts assume a service life of several decades.
Special features of mounting
- Easy to cut sheets, although given the strength of the material, this is slightly more difficult than with GVL, GKL or other samples.
- Fixing - on self-tapping screws( without pre-drilling, as for drywall) or by gluing to the substrate.
- "Finishing" finishing of sheets - any material, without restrictions.
Scope of magnesite boards
- Alignment of the substrate.
- Wall decoration( external and internal).
- "rough" floor( LSU from 12 mm).
- Multi-level ceiling.
- Interior partitions.
- Manufacture of furnishings.
- Ventcorob, channels for laying communication routes.
- Fixed formwork.
- Shields, banners and so on.
Knowing the characteristics of the products, it is not difficult to determine where else LSU can be used in everyday life.
Specialists note only 1 lack of magnesite plates in comparison with analogues - a high price. It depends on the variety of products and their linear parameters. For example, an estimated cost of 10 mm LSU 2.5 x 1.22( m) - 490 rubles .Although, given all the merits of products, how much is it essential?
