Uncoated Birch Plywood (EXT)

SFK PLYWOOD

UNCOATED BIRCH PLYWOOD (EXT)

E GRADE

E-grade plywood is the highest quality plywood without visible defects and flaws, made from pure birch veneers.

A slight deviation in the structure of wood, of a random nature, is allowed, except for dark eyes.
Not allowed: all kinds of knots, holes from them, wormholes, slight brown veins, etc.
Roughness parameters Rm according to GOST 7016 not more than: for sanded plywood – 100 microns, for unsanded plywood – 200 microns.
Warping in plywood with a thickness of not more than 6.5 mm is not taken into account, with a thickness of 6.5 mm or more, it is allowed with a deflection of not more than 15 mm per 1 m of the diagonal length of the plywood sheet.

Such plywood can be varnished. Grade E plywood is used to make laminated plywood, also in the field of mechanical engineering, construction. This plywood is an ideal material for doors, various office furniture, tables, chairs, cabinets and much more. Almost ninety percent of office cabinet furniture is made from it.

PRODUCTION OF LAMINATED PRODUCTS

MECHANICAL ENGINEERING

CONSTRUCTION

OFFICE FURNITURE

1ST GRADE

Plywood of the 1st grade has practically no defects.

No more than three wood defects or processing defects are allowed, such as:

Warp;
Cracks no more than 200 mm long;
Lack of veneer, defects in the edges of the plywood sheet during grinding and trimming no more than 2 mm;
Pin, healthy, intergrown, light and dark knots, with a diameter of not more than 15 mm, partially intergrown, falling knots, holes from them, a wormhole with a diameter of not more than 6 mm, in the amount of 3 pieces per 1 m2.

Grade 1/1 plywood is used for the production of laminated products, as well as decor, parquet, furniture. WBP grade 2/2 and 3/3 plywood may also be suitable for these purposes, depending on the type of defect.

PRODUCTION OF LAMINATED PRODUCTS

DECOR

PARQUET

FURNITURE

2ND GRADE

In grade 2 plywood, partially intergrown, non-intergrown, falling knots, holes from them, a wormhole with a diameter of not more than 6 mm are allowed in the amount of 6 pcs. per 1 m²,
It is also allowed no more than 10 healthy intergrown knots per 1 m² with a diameter of up to 25 mm,
It is allowed to repair the surface of the sheet. Knots and open defects are sealed with veneer inserts. Such plywood is covered with various finishing materials and paints.

Plywood 1/2 and 2/2 grade is suitable for the construction of interior partitions and furniture production. For the same purposes, plywood grades FC 2/3, 3/3, 2/4 and 3/4 are used.

CONSTRUCTION OF INTERIOR PARTITIONS

FURNITURE

3RD GRADE

In the 3rd grade of plywood, partially intergrown, not intergrown, falling knots, holes from them, a wormhole with a diameter of not more than 6 mm and in the amount of 10 pcs. per 1 m² of sheet surface.
Healthy intergrown knots are also allowed without limiting the number.

It is used for the manufacture of structures hidden from external view, the manufacture of containers and packaging. When performing various outdoor finishing and construction works. Such plywood is successfully used in the construction of temporary storage facilities and other light outbuildings, as reusable formwork, packaging structures.

MANUFACTURE OF STRUCTURES HIDDEN FROM EXTERNAL VIEW

TEMPORARY STORAGE FACILITIES

LIGHT OUTBUILDINGS

PACKAGING

4TH GRADE

In grade 4 plywood, any manufacturing defects are allowed:

Partially intergrown, non-united, falling knots, holes from them, a wormhole are allowed in unlimited quantities with a diameter of not more than 40 mm, only good gluing is guaranteed.

Plywood 3/3 and 3/4 and 4/4 is used for construction purposes. Walls and floors are leveled with it, it is used for the construction of roofs and the construction of formwork. Sheets grade 4/4 are also suitable for the manufacture of packaging and containers.

MENU