If FSF plywood will be used in the repair , what is it, you need to understand. This material has increased moisture resistance, however, such paintings can not be used during interior decoration. This is due to the fact that in the manufacture of substances and impregnations are used that may be harmful to human health.
FSF brand plywood specifications
The described material is not only excellent in moisture resistance, but also in high mechanical strength. Characterizes these cloths also wear resistance. All these features allow the use of such sheets when carrying out roofing works and manipulations where concrete is involved. If you are interested in FSF plywood, what is it, you can find out in this article. It is used in the automotive industry and in car building.
Production Features
In the conditions of the plant, beech, pine, birch veneer is used, which undergoes a preliminary peeling process. Phenol-formaldehyde resins are used as adhesives . Bonding of sheets occurs under the influence of elevated temperature and high pressure. After the canvas, they pass the cooling, marking stage and enter for aging. At the final stage, the goods are packaged and sent to points of sale.
Technical features and dimensions
Quite often today, FSF plywood is used in construction. What is it, it is important to know before purchasing materials. In the market for construction products, you can purchase canvases that have a length and width within 2440 x 1220 millimeters. As for the thickness, it can vary from 4 to 21 millimeters. If you wish, you can purchase paintings, the length and width of which is 2500 x 1250 millimeters, respectively.
When shearing, the tensile strength along the adhesive layer is 1.5 MPa. Professionals quite often are interested in what is the tensile strength in static bending. This indicator for the described material is 65 MPa. Density can vary from 670 to 800 kilograms per square meter. Humidity is typically in the range of 8 percent. This figure can be changed in both directions by 2 percent.
If you will buy FSF plywood, what is it, it is important to know. One of the main characteristics is the processing method, thus, the sheets can be polished or unpolished. You may be interested in the formaldehyde resin content per 100 grams of dry weight of the material. This figure is 8 milligrams. The maximum deviation in width and length may be equivalent to 2 millimeters in both directions.
Area of use
Not sure why moisture resistant plywood can be used? It is used today in many areas of construction and industry. With its help, many varieties of work are carried out. Thus, the material can be used to equip the roof, in which case it is used when arranging the crate system. If we are talking about construction, then the FSF is used in civil works. Quite often, sheets of this water-repellent material are involved in the construction of cars.
Features of laminated plywood
FSF plywood can be laminated. It uses raw materials from birch. In this case, the material is coated on both sides with a special film, which can be melamine or phenolic. If we talk about the standard coating, then it has a dark brown color, the density of the sheet in this case is 120 grams per meter cubic. At the request of the customer, a film can be used which has a density of up to 80 grams per cubic meter.
Features of laminated plywood
Moisture-resistant FSF plywood can have a thickness of 9 to 40 millimeters. The standard dimensions are 1220x2440 mm, 1250x2500 mm. Density can vary from 680 to 700 kg per cubic meter. The material is also distinguished by the formaldehyde emission class, the described canvases correspond to E1. Humidity does not exceed 10 percent. The surface may have a different texture, such as mesh, smooth or paper, the latter of which is intended for further staining.
The benefits of laminated plywood
Plywood FSF moisture resistant laminated prevents the penetration of moisture, has excellent resistance to abrasion, chemicals, as well as the formation of fungus. These properties make the laminated material indispensable when creating wear-resistant surfaces such as reusable formwork, billboards, paneling of vans, as well as when carrying out monolithic concrete work.
Reviews
Plywood FSF 4/4 is increasingly chosen today by the modern consumer. This is due to the fact that the sheets are resistant to cracking, and also with their help you can provide a fairly quick installation. As noted in the reviews, the canvases are easy to process, as well as tolerate temperature fluctuations. The surface is not subject to corrosion and is quite easy to clean. Plywood can be combined with other materials.
Conclusion
Depending on the outer variety of the outer layer, birch plywood can have one of five varieties. The letter "E" denotes an elite variety. Next are grades 1, 2, 3 and 4.
Varieties of FSF plywood are indicated by a combination of veneer varieties on the front and inner layers. For example, I / I, I / II, II / II. You can use in construction the grade that will meet certain requirements. It is important to consider the expected load and the influence of external factors when choosing the material. Only then can you rely on the fact that the material will demonstrate all its best quality characteristics, and will also serve for a long time, without suggesting repairs or replacement of individual elements. If you yourself cannot understand the grades that are presented on the building materials market, then it is best to contact specialists who will help you make the right choice.