CPD produced by hot pressing of coarse wood chips derived from waste wood and wood unbusinesslike any species. During pressing, the chips injected thermosetting resins, as well as hydrophobic, antiseptic and other additives that make hardboard plate acquires special strength and durability. At the first stage of the production of fiberboard panels are raw material processing. The use of round wood is reduced by the use of materials such as wood chips, sawdust and recycled wood. The resulting chips are sorted, cleaned and dried. Then, from the tarred chips formed the so-called carpet, from which is obtained after pressing praobraz fiberboard panels. Next plate edge and subjected to various forms of finishing - sanding, coating and others. Later then, wood fiber responds to the humidity is not as strong as the fibers in natural wood. Therefore, hardboard - a very stable material. Thanks to this quality they are suitable primarily for the production of furniture and built-in parts of large area. True, on one condition: that the humidity does not exceed the "capacity" plates. Disadvantages WISP addition to the benefits of chipboard has its drawbacks. From chips and pitches are not so resilient and durable as real wood, so that some of the wooden construction of the chipboard can be done. Along the edges of plate and drilling locations can be produced chips, place cut often look ugly. In short, in order not to damage the surface of chipboard, with them must be handled very carefully. If we carefully consider the waste fiberboard panels, it is easy to see that they are different in structure. Thus, there is a single-layer boards, which are pressed from chips of the same size and are characterized by a rather rough surface. A three-layer plate includes a middle layer of coarse chips and on the sides of two layers - of the thinner and more densely compacted chips. In five-layer MDF panels between the middle and the cover layer is another layer of medium-size chips. Different structures - is not only different surfaces and different is the elasticity and strength of the plate. The more layers - the elastic. Although it does not make it universal: these complex boards are not suitable for every purpose, for some construction work more suitable single-layer slab. Three kinds of chipboard known to all the standard chipboard plate is designed for indoor use, it applies only in areas with a lack of moisture. There is chipboard, which can be applied to the exterior, but only where there is no constant humidity. If such a plate can get wet - it dries quickly. There chipboard panels, containing not only resistant to weather artificial pitches, but additionally, and the protective material against fungal lesions. These plates can be used in wet areas where there is a risk of fungus. Artificial resins used as a binder in fiberboard, emit unhealthy formaldehyde. The nature of the allocation of hardboard are divided into three classes. For residential use are recommended slab class 1, highlighting that the formaldehyde does not exceed 0.1 ml per cubic meter of air. Besides, who wants to use for construction or as a material for furniture-friendly fiberboard panels, we suggest to choose those in which the binder is cement or magnesite. Dimensions of Fiberboard panels most popular in the domestic market particleboard slab thickness of 8, 10, 13, 16, 19, 22, 25 and 28 mm. But there are also thicker - up to 70 mm, which can even be used as a sill or work surface kitchen table. The most common size of chipboard panels - 217 x 207 cm in order to produce slabs of industrial and large sizes. If you need to cladding panels are not standard size, such producer fiberboard can be made on request. Multi-layer particleboard panels are most often used for furniture manufacturing. They face a layer of fine chips allows the use of various surface treatments.
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