Decades joiners and carpenters invent more and more new designs to conquer the wood, which often surprises. After all, under the influence of rainfall, it warps, shrinks, deforms. Materials that allows you to forget these problems, more than 90 years. Chipboard, which appeared in 1900 as prototypes and became a 30s serial product, composed for the most part also of wood - from the small and very small chips, which when added to its synthetic resin (as binder) at high temperature and high pressure is pressed into the slab. Chips reacts to humidity are not as strong as natural wood fibers. Therefore, chipboard - very resistant material. Thanks to this quality they are suitable primarily for furniture and built-in large-area parts. However, on one condition: that the humidity does not exceed " features " plate.
Disadvantages
In addition to the advantages, flakeboards there are drawbacks. The structure of the chip and the synthetic resin is not as flexible and strong as natural wood, so that some of the structures that are common in the wood of the plates can be done. At the edges and in places where drilling may be chipped, cut places often look ugly. In short, so as not to damage the surface of wood chipboard, they must be handled with care.
If you carefully consider the waste wood chipboard, it is easy to make sure that they are diverse in structure. Thus, there are single-walled plates that are pressed out of the chip in only one size and are characterized by a fairly rough surface. Three-layer plate includes a middle layer of coarse chips and two cover - of finer and denser compacted swarf. In five-layer boards between the middle and top layers is another layer.
The different structure - it is not only the different surface. Multi-layer, for example, increases the elasticity and strength of the board, which, however, does not make it universal: such complex boards are not suitable for every purpose, for some construction work will approach one-layer boards.
As a binder for the molded chips are used synthetic resins, cement or magnesite. Chipboard associated with cement or magnesite, are less common. The vast majority of commercially available plates manufactured with synthetic resin.
Three varieties of plates
known to all the standard plate is designed for interior applications, it is used only in dry areas.
There is chipboard, which can be used for outdoor decoration, but only where there is constant humidity. If this stove is wet, it dries quickly.
There chipboard containing not only resistant to weather conditions, artificial pitches, but additional protective material and against fungal infections. These boards are used, usually in moist areas where conditions are conducive to the emergence of the fungus.
The artificial resin used as a binder in chipboard, emit harmful health formaldehyde. Depending on the amount of its chipboard divided into three classes. For residential use is preferable to plate the 1st class, the allocation of that formaldehyde does not exceed 0.1 ml per cubic meter of air.
Anyone who wants to use for the construction or as a material for furniture friendly Wood-shaving plates, we advise to select those in which the binder is a cement or magnesite. However, it is difficult to get them.
Plate size
Typically, commercially available chipboard thickness of 8, 10, 13, 16, 19, 22, 25 and 28 mm . But there is a thick - up to 70 mm are used, for example, as a window sill or the work surface of the kitchen table.
The most common size of plate - 217 & times; 207 cm. In order to produce industrial and large plate, this means that even for wall covering slabs can choose the appropriate size. Multilayer particle boards are used primarily for the manufacture of furniture. Their front layer of fine chips can be used various surface treatments.