Many materials are used in the repair and construction of residential buildings, but there are those among them that have covered themselves with simply unfading glory. Take, for example, fiberboard. What is it?
The name stands for "fibreboard". This is a sheet material, the manufacture of which occurs by pressing wood chips with the addition of various binding components.
As a rule, synthetic polymer resins are used in the last incarnation. In addition, they include various substances that give the finished material hydrophobic properties.
The cheapest (and therefore most used) ceresin and paraffin. Often, antiseptic additives are added to the composition. Because of them, mold practically does not grow on fiberboard. What it is? Most often, phenols act as such an antiseptic additive, which successfully prevent the development of fungi and destroy their spores.
Fibreboard is produced in two ways: dry and wet. However, intermediate methods have recently appeared: wet-dry and semi-dry.
The cheapest dry method is when fiberboard (what it is, we have already said) is formed from wood chips under normal conditions andwithout wetting it with water. The plate is pressed at high temperature and pressure.
The resulting material is characterized by low cost, significant porosity and lightness. Its humidity is only 6-8%.
The wet method consists of the same steps, but the wood chips are sent to pressing, being moistened with water. After leaving the press chamber, the material is cut into individual sheets and sent to the dryer. Such fiberboard panels have a humidity already in the range of 70%. Because of this, they are more heavy, but more durable.
The semi-dry method is similar to the first method described above. The only difference is that the chips are sprinkled with water before being fed to the pressing, so that the moisture content of the resulting material is 16-18%.
The wet-dry method differs from all of the above in that first a plate is formed from the chips soaked with water, then it is fed into the drying plant and only after that it is sent to the hot pressing procedure. The result is a hardboard plywood that actually has a relative humidity of 0%.
Note that we are not doing the right thing when we talk about “shavings”. The fact is that these shavings are first ground into fibers with the help of special machines, from which a web of finished panels is already formed.
In recent years, improved fiberboard has been used much more often. In the manufacture of such panels, a multi-layer coating is applied to their surface. At the first stage, the plate is covered with a specialprimer layer, creating a reliable base. It is printed with a pattern imitating a normal wood surface.
Such a plate is practically not afraid of moisture, as well as abrasion. In this case, a special varnish is used to harden the surface.
So we told you about fiberboard. What it is, you now know. Due to the cheapness and strength qualities of this material, it is often used not only in the furniture industry, but also in the construction industry.
