|
Product
Birch plywood (Riga Ply) bonded with waterproof phenol resin
adhesive and overlaid on both the sides with a phenol film (grade F/F).
Film colour
Normally chestnut brown or dark brown. Other standard colour are light
brown transparent, dark brown, yellow non - transparent and transparent,
green, colourless, black, grey, red. Other colours on request.
Under transparent films BB grade veneer is applied.
Applications
-
Chestnut brown (120g/m2) -
for concrete shuttering, transport industry.
-
Dark brown (167g/m2 and
220g/m2), black (120g/m2) - for concrete
shuttering, building boards, transport industry, flooring.
-
Light brown transparent (120g/m2),
green (120g/m2), red (220g/m2) - for concrete
shuttering, building boards, transport industry, flooring.
-
Colourless (120g/m2), yellow
non-transparent (167g/m2), yellow transparent (120g/m2),
grey (174g/m2) - for building boards, transport industry,
flooring.
Advantage
Environmentally friendly, durable, workable, hygienic, not smelling
and don't give taste to food-stuff, easy to clean, wear-proof, weather and
water-proof, resists commonly used chemicals. Riga Form for
shuttering can be re-used many times.
Gluing classes
Plywood is glued with waterproof phenol formaldehyde resin adhesive.
Bonding is resistant to weather and boiling water. It meets requirements
of the following standards:
EN 314 / 3rd
class;
BS 1203 / H4 (previously WBP);
DIN 68705 Part 3 / type BFU 100.
Formaldehyde
emission
In accordance with the standard EN 13986 formaldehyde
emission meets the Class E1 requirements. Test method EN 717
Part 2.
Overlaying
A smooth phenol film, which is hot-pressed onto the surface, is used
as an overlay. The film is composed of a base paper and phenol resin that
is impregnated into the base paper. Film weights 120g/m2,
~170g/m2, 220g/m2. Overlaying with higher resistance
to abrasion and multi-layer overlaying are also possible (respectively
240g/m2, 440g/m2 etc.). Multi-layer overlaying gives
superior wear resistance.
Overlaying
characteristics
Overlaying surface is smooth, glossy and hard. It withstands abrasion,
it is weather and moisture proof and resists commonly used chemicals,
dilute acids and alkalis. The surface is easy to clean with water or steam
wash. Abrasion resistance according to the Taber test (EN
438-2): depends on applied film, conditions of product storage and
application, thickness of film (see below) a.o.
It is possible to obtain
overlaid plywood resistance to wear even above 10 000 revolutions.
Company’s specialists will assist you to choose the most appropriate
product.
Edges sealing
Edges of the panels are matched with the face against absorption of
moisture by using acrylic paint. Other colours are available and the edges
may be unsealed at customers' request.
Sizes
1200 mm x 1200 / 1500 /
1800 / 2100 / 2400 / 2700 / 3000 mm
1220 mm x 1220 / 1525 / 1830 / 2135 / 2440 / 2745 / 3050 mm
1250 mm x 1250 / 1500 / 1800 / 2150 / 2500 / 2750 / 3000 mm
1500 mm x 1500 / 1800 / 2100 / 2500 / 2700 / 3000 mm
1525 mm x 1525 / 1830 / 2135 / 2440 / 2745 / 3050 mm
Cut to size panels and
machining available in accordance with the customers' requirements.
Thickness:
4, 6.5, 9, 12, 15, 18, 21, 24, 27, 30, 35, 40 mm.
Tolerance:
Size and right angle tolerance meets the standard EN 315
requirements.
| Nominal thickness, mm |
4 |
6,5 |
9 |
12 |
15 |
18 |
21 |
24 |
27 |
30 |
35 |
40 |
| Number of plies |
3 |
5 |
7 |
9 |
11 |
13 |
15 |
17 |
19 |
21 |
25 |
29 |
Average actual
thickness, mm |
3,8 |
6,4 |
9,2 |
12,0 |
14,9 |
17,7 |
20,5 |
23,4 |
26,5 |
29,4 |
35,0 |
38,7 |
| Lower limit, mm |
3,5 |
6,1 |
8,8 |
11,5 |
14,3 |
17,1 |
20,0 |
22,9 |
25,8 |
28,7 |
33,6 |
38,4 |
| Upper limit, mm |
4,1 |
6,9 |
9,5 |
12,5 |
15,3 |
18,1 |
20,9 |
23,7 |
26,8 |
29,9 |
35,4 |
41,2 |
| Parameter |
Tolerance |
Length,
width, (mm)
<1000
1000…2000
>2000 |
± 1 mm
± 2 mm
± 3 mm |
| Right angle |
± 0.1 % |
| Edge
straightness |
± 0.1 % |
Back to Phenolic Coated Birch
Plywoods
|
