Bakelite plywood: characteristics, application

Plywood bakelite is a durable, resilient, waterproof, wear-resistant material that is not inferior in quality even to low-alloyed steel. All this - thanks to a special technology, which consists in impregnating birch veneer with bakelite glue under high temperature and under pressure. Such plywood, called "sea", is not afraid of water or heat. Can be operated at temperatures from minus 50 to plus 50 on a Celsius scale. The material does not rot, does not become covered with a fungus, can be used in countries with a tropical humid climate and on the seashore. The service life is up to 15 years.

Preparation method

First step. For the production of grade I plywood, its layers are completely immersed in resin, for the production of material grade II veneers are simply lubricated.

Second phase. The sheets are pressed under a pressure of 4 MPa.

The third stage. Plywood is cooled under pressure.

High pressure makes it possible to completely impregnate the layers and get thinner plywood. In addition, pressing makes the material resistant to moisture penetration.

Specifications

The material is produced in the form of sheets with a width of 1250 mm and 1500 mm, the length can be 2800 mm, 5650 mm, 5700 mm. The permissible deviations in length can be about 40 mm, in width - up to 20 mm. The thickness of the plywood varies from 5 mm to 20 mm (an error of about 2 mm). The density of the material is a maximum of 1.2 MPa. Unlike usual, bakelite plywood is presented in dark shades, as a rule, in red-brown.

The plywood has a smooth surface on which dents, scratches, rollers, gasket prints are not allowed in accordance with GOST. A bakelite plywood with unmasked and unimpregnated places, bubbles, underpresses, and bundles is considered to be a marriage.

Applications

Thanks to many useful qualities, Bakelite plywood is successfully used in various industries. Such as automotive, shipbuilding, aircraft construction, mechanical engineering, hydrotechnical industry, show business, circus art. Speaking of application more specifically, the material is excellent for the construction of roofs, floors, decks, partitions, formwork, ceilings, plating, floors in buses, exhibition stands and other.

Plywood grades

Several brands of bakelite plywood are on the market: FBS, FBS-1, FBS-1A. The first two species, which have increased water resistance and fire resistance, are intended for use in construction, shipbuilding. The third type is designed specifically for the automotive industry. The moisture resistance of the latter grade is somewhat lower, since only the outer layers are impregnated with resin, but at the same time it is the cheapest one.

The top layers of plywood FBS and FBS-1 are made of veneer I class, internal - from veneer II veneer. FBS-1A is completely made from raw material of II grade.

By the method of mechanical processing, the material is unpolished, ground (on one or both sides).

Advantages of bakelite plywood in front of low-alloy steel

Why do specialists tend to favor plywood? Along with such qualities as water resistance, super strength, fire resistance and elasticity, the material is easy and does not fear corrosion, which makes it possible to operate it in conditions of high humidity and even under water.

Bakelite plywood is produced and sold in Moscow. Wide assortment, low prices, round-the-clock shipment, direct delivery, maximum convenience for customers - the basic principles of the manufacturers' work.