Wood particle board is a sheet composite material that is produced by hot pressing wood chips bound to non-mineral matter and certain additives.
Despite the fact that at first sight all DS-boards having the same dimensions look relatively the same, in reality they have differences in a number of parameters. The main requirements for the material are specified in GOST 10632-2007, according to which several different classes of this product are distinguished.
The sheets differ in the quality of the surface to be treated. They are divided into three varieties:
- First grade. This chipboard with a complete lack of fractures and chips on the surface of the sheet, the edges are perfectly even, there is no swelling. The material of the first grade is used for further use, in particular, in the organization of laminated coating.
- The second grade includes a chipboard with a minimum of deviations: minor chips, cracks and delaminations. Such a chipboard is mainly used for theproduction of furniture, the basis for the floor or the plating for finishing.
- And, finally, the third grade. This is the culling of slabs that have thickness differences, significant delamination, low density and many other defects. How many flaws there are to be attributed to the sheet to the third grade is not specified in the standard.
Depending on the mechanical properties, two brands are distinguished:
- P-A.Such material has a high bending strength, high moisture resistance, a slight propensity to swell.
- PB.This brand has weaker characteristics. But such boards have a lower cost, due to which they are widely used in construction for laying the foundation of floors and walls for finishing, overlapping devices, forming formwork, etc.
Particleboard: Sheet dimensions and thickness
The sheet size is also specified in GOST.It indicates the following:
- What kind of chipboard sheet sizes. The length can be from 1830 to 5680 mm. There are 18 standard values.
- The width is 1220 - 2500 mm. There are 9 standard values.
- Thickness - from 3mm.
Note that the linear dimension is given by a discrete set of values, and the thickness can be practically any.
The most popular chipboard dimensions of the sheet are as follows:
- EAF 8 mm .Use such thin sheets for different light elements of furniture, door leaves, office partitions. The density of the products is usually 680-720 kg / m3.
- 16 mm .Particleboard, whose sheet size is 16 mm, is used for making office furniture, rough floors and internal partitions in wooden houses.
- 18 mm .It is used for the manufacture of wardrobes, various cabinet furniture, as well as for the preparation of floors under the coating of laminate or linoleum.
- 20 mm .Particleboard, whose sheet sizes are 20 mm thick, are usually used for flooring of rough floors.
- 22 mm .Applied for the production of certain elements of furniture, such as table tops, lids, table frames. They are also used as a basis for sex.
- 25 mm .Used thick sheets of chipboard for the manufacture of table tops, window sills, doors.
- 32 mm .Of the sheets are made countertops, furniture elements, shelves.
- chipboard with thickness 38 mm .Of these, kitchen and bar countertops are produced.
The weight of the chipboard depends on the size of the sheet. The density of the material is almost always the same, so the mass is proportional to the area of the sheet and its thickness.
Laminated chipboard panels impregnated with formaldehyde resins. For lamination, a film specially designed for these purposes is used, which is applied over the plate. To produce the film, paper with ornament and texture is used. To paper could acquire additional rigidity, it is impregnated with melamine resin. The standard size of the laminated chipboard sheet is 2800x2070, 2500x1850 mm.