Chipboards - a few species of sheet material are used to align the surfaces of objects under construction. One of them is hardboard. What it is, how it differs from other similar materials, which is used and how much it costs - all this will be discussed in our today's review.
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- 1 Manufacturing process hardboard
- 1.1 What is the difference hardboard and MDF
- 2 Where applicable hardboard
- 3 Varieties and labeling hardboard
- 3.1 The density of the hardboard
- 3.2 other features
- 4 laminated hardboard
- 5 The dimensions of the sheet of hardboard
- 6 Price per sheet of hardboard
Manufacturing process hardboard
The very name of hardboard any technical documents is not regulated. In fact, this is one of the varieties FibreboardWhose production process is based on the guests under the number 4598-86.
Since this is a fiber board, the base material - it is waste wood industry. The chips and shavings are processed with the addition of a certain amount of various ingredients which improve the properties of the plates. And it added:
- binders which are not only linked to each other pellets and fibers, as well as determine the strength and density of the structure;
- Polymer compositions that improve the mechanical properties of the sheets;
- antiseptics and fire retardants, the first of which is responsible for the moisture resistance, the second indicator for raising such as fire resistance;
- hydrophobic substances, for example, rosin, or wax, which determine moisture fiberboard.
Attention! As binding components used in the manufacture of hardboard formaldehyde resins which are toxic. So GOST their concentration should not exceed 1.3%.
What is the difference hardboard and MDF
Both products belong to the same category, but to different groups. The main difference from each other - a decorative finished one of the sides of the sheet. That is, if in front of you laminated chipboard or colored, it is hardboard. Incidentally, as the lamination is used PVC film, plastic or lacquer.
In addition, there is another difference between hardboard and MDF, which is defined by the standard. This strength and stiffness of the plates. For soft sheets species refers fiberboard, hardboard to hard.
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Of our publications you can learn more what fiberboard. Sheet size, thickness, and the price will no longer be for you to unknown parameters. We will tell you about the differences between brands and the intricacies of installation. After all, this material is particularly noteworthy, as it applies not only for decoration, but also widely used in decorative works and construction.
Where applicable hardboard
The main area of its use - the construction and furniture industry. In construction it is used most often as a leveling material. Them sheathe the wallsCeilings, laid on the floor base. Of hardboard collect septa, Constructing a niche-mounted, openings and other constructions. From this construct false fireplaces, columns and other architectural delights. It is irreplaceable in the manufacture and furniture, Various containers and packaging.
Varieties and labeling hardboard
The marking material hardness is taken into account mainly. And the higher it is, the more expensive it is worth stove. This is the question, how much is hardboard? There are labeling and alphabetic and numeric indicators by which one can understand what constitutes the material, and for which construction work can be used.
- "M" - a soft fiberboard;
- "NT" or "PT" - reduction of hardness or, as they are called specialists, semi-solid, the second name is determined by the technical conditions of production;
- "T" - hard, his rough hand;
- "TC" - the same as the previous model, only with processed ennobled by the parties;
- "TP" - the same thing, only with painted face;
- "TV" - water-resistant panel with rough sides;
- "TSV" - the same thing, only with painted face;
- "ST" - superhard;
- "STS" - all the same the previous one, only with a decorative finish.
As for digital signage, it was mostly the marking indicates the tensile strength of the panels. For example, TC-300. This ultra-hard fiberboard with a tensile strength in bending 30 MPa. This is when the plate withstands the weight of 300 kg, acting on 1 cm² of its surface.
The density of the hardboard
Code letter - it is nothing like the density of the sheet material. Even the name is confirmed.
Mark hardboard | Density, kg / m³ | Application area |
"M" | 100÷500 | hardboard structure is very similar to the plug. Used internally only painting and decorating. |
"T" | 500÷800 | Very similar to the cardboard. Used in construction for surfacing and furniture industryAnd the manufacture of packaging. |
"ST" | 800÷1100 | It is used in all areas. |
When choosing a canvas for a particular job, it is necessary to take account of its density, because the higher the figure, the more expensive the material itself. For example, for draft works related to leveling the surface - it can be a floor, ceiling or wall - it is better to buy a canvas soft. But for the facades have to fork out and buy laminated boards. They have higher rates of strength and moisture resistance.
other features
With regard to moisture resistance, then this characteristic is relevant and furniture industries because furniture, Which is used in wet areas, it is produced in large quantities. So this figure varies among different brands because different density.
Needless water resistance value is determined daily plates swelling in thickness, and this figure is denoted as a percentage. For instance:
- hardboard mark "HT" swell for 24 hours at 40%;
- solid grade 20 ÷ 25%;
- ultrahard "ST" is 13%;
- superhard ennobled by only 10%.
The last two models can be used in wet areas, not only in the form of furniture, but also as partitions, floor coverings, ceilings, wall decoration.
Attention! Waterproof brand - it's not 100% protection from water. Therefore, during transportation, storage and use necessary to exclude ingress of liquids into slabs. This is especially true of their ends.
About flexural strength has been mentioned, but I should add that each brand has his own. There is a third figure - is the tensile strength. The following table shows these two values with razbroskoy on hardboard models.
Characteristic | soft fiberboard | semisolid | Solid | superhard |
Bending strength, MPa | 0,4÷1,8 | 15 | 33÷38 | 40÷47 |
Tensile Strength, MPa | Undefined | Undefined | 0,3 | 0,32 |
laminated hardboard
About this species lists should be discussed separately, because this is a decorative material, with which you can not only to create some kind of constructions, but also to give them a certain look in terms of decorative clearance. Usually this title understand plate lined with plastic film. That it gives the material improved performance. What is:
- increased mechanical strength, because laminate It protects the base material from scratches, cracks and chips;
- a variety of design registration, in this regard, the film - it's a huge opportunity to create pictures, patterns and other decorative imitations of natural materials: brickStone, sand, wood, leather, metal and so on;
- long-term operation, as claimed by the bulk producers. Their laminated hardboard faithfully serve guaranteed 20 years;
- practicality material laminated surface contaminated worse, but easily cleaned with ordinary household detergents.
It should be noted that the laminated hardboard worth much more expensive than conventional models. But also in the group has cost differences that depend on the used laminate coating, as well as the brand.
The dimensions of the sheet of hardboard
Sizes plates wide enough. For industrial use the sheets are cut in a length of from 1.2 to 6 m, a width of 1 ÷ 1,8 m. Domestic use, i.e., that are sold in stores, the standard sheet sizes comprise hardboard or 2140 × 1220 2750 × 1220 mm. The thickness of soft grades of panels (referring to their maximum value) of 25 mm, solid - 6 mm. At superhard models minimum thickness of only 2.5 mm. However, use of such a hardboard and for laying on floors and for walls and ceilings.
That is, the higher the density of hardboard, the thinner it is produced. On the one hand advantage, but on the other flaw. For example, a sheet thickness of 4 mm - is the ability to suspended ceiling construction with a sufficiently high strength characteristics. Just now insulation It does not matter. For these purposes it is better to use a panel thickness of 12 to 25 mm.
Today mortar stores offer cutting service hardboard, making it easy to transport and it is possible to not do it at home. But if such a need arose suddenly, the question of how to cut hardboard, not so complicated, it's just a fiberboard. Of course, the process itself must be approached from the standpoint of precision of panel sizes. And it can only provide a good tool. So do not choose the saw wood or hacksaw metal, although both options are acceptable.
The optimal solution - is either jigsawsOr circular saw. Both tools are not only quick to saw plate, but do not leave on the cutting edges torn plane. And for the finishing works is the overriding indicator.
Price per sheet of hardboard
Prices hardboard at the rate of one sheet vary by brand and size of the cut. For comparison, the standard plate, which is 2750 × 1220 mm in 3.2 mm thick.
- mark "T" costs 169 rubles;
- the same with the double-sided lamination - 320 rubles.
Depending on the size of the price lists defined on the basis of price per 1 m². That is, it is a fundamental characteristic of pricing. In our example, the price of 1 m will be:
- 2,75 × 1,22 = 3,355 m²;
- 169 / 3,355 = 50 rubles worth 1 m².
If you acquire sheet size 2140 × 1220, the cost will be a single sheet: 2,14 × 1,22 = 2,61 m² - is its area. Now: 2,61 × 50 = 130 rubles. In the stores sure to indicate the price per square meter of hardboard.
laminated hardboard