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Phenolic Coated Birch Plywoods -
Riga Laser

Product
Birch plywood, which is glued with colourless urea- formaldehyde adhesive resin modified with melamine. The panels have been developed for laser cutting.

Possible overlays
In order to protect the surface from spots and facilitate further processing, it is possible to coat the plywood with prime (UV hardening), acid curing lacquer or melamine film, for example: Riga Laser Prime, Riga Laser Lacquer or Riga Laser Mel.

Further processing
Riga Laser plywood is intended for laser cutting or for processing with ordinary cutting tools. It is possible to apply to the surface various synthetic materials: films, laminates, as well as paint or lacquer.

Application
Widely used for die-cutting plates in cardboard packing industry.
Riga Laser plywood is suitable for indoor use and applications where colourless glue is required: for furniture, toys and sports equipment

Advantages
Cutting with laser, durable, easy workable and environmentally friendly.
The plywood has no visible edge defects. 

Gluing classes
Bonding strength of modified urea- formaldehyde adhesive resin is in accordance with: 

EN 314 / 1st class;
BS 1203 / H2 (previously MR).

Formaldehyde emission
In accordance with the Standard EN 13986 formaldehyde emission meets the Class E1 requirements. Test method EN 717 part 2.

Grades
Grades of plywood Riga Laser are defined according to company’s technical specifications developed in correspondence with SFS 2413, as well as on the basis of International Organization for Standardization 139.Technical Committee II Working Group quality requirements, recommendations and regulations on plywood with outer plies made of peeled birch veneers (1994). In some points, there are stricter and more specific quality requirements than in International documents:

B (I) –   for high quality painting, staining and lacquering;
S (II) –   for good quality painting, staining, lacquering and for coating with finishing materials;
BB (III) -  for paint finishes and coating with transparent overlays, films, and also veneering.

Standard sizes

1220 x 2440 mm
1250 x 2500 mm
1500 x 2500/3000 mm
1525 x 2440/3050 mm

Cut to size panels, machining, tongue & groove jointing is available in accordance with customer’s requirements.

Standard thickness

9, 12, 15, 18, 21, 24 mm.

Tolerance
Size and right angle tolerance meets the standard EN 315 requirements.

Nominal thickness, mm 9 12 15 18 21 24
No. of plies 7 9 11 13 15 17
Average actual thickness, mm 9.2 12.0 14.9 17.7 20.5 23.4
Lower limit, mm 8.8 11.5 14.3 17.1 20.0 22.9
Upper limit, mm 9.5 12.5 15.3 18.1 20.9 23.7
Parameter Tolerance
Length, width (mm)
< 1000
1000…2000
> 2000
±1 mm
±2 mm
±3 mm
Right angle ±0.1%
Edge straightness ±0.1%

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