22 MM 2-STRIP SOLID HARDWOOD FLOORING
PRODUCT INFORMATION
PRODUCT SPECIFICATION
Junckers 22 mm 2-strip solid hardwood floors are factory finished and ready to install in accordance to Junckers Laying Instructions.
Each floor board is assembled from two rows of staves by a glued double dovetail construction.
Each floor board is tongued and grooved on all four sides.
PRODUCT DATA / TOLERANCES
Nominal Board Dimensions
Thickness: 21.8 mm (±0.2 mm)
Width: 129.0 mm (±0.2 mm)
Length Commercial/Residential floors:
3700 / 1830 / 900 mm (±1.0 mm)
Length Sports floors:
3700 mm (±1.0 mm)
Drying Method
Maple and Beech, all variants: Press dried.
Oak and Ash, all variants: Kiln dried.
Average Moisture Content
Beech, Maple, Oak and Ash (all variants except Black Oak): 8 % (±2 %).
Black Oak: 9 % (±2 %)
Precision Engineering
Landing Deviation: 0.2 mm (0.3 mm in localised areas).
Board ends are right angled at ±0.3 mm.
PRODUCT RANGE, COMMERCIAL / RESIDENTIAL
|
Product |
Grade |
Surface |
Product variants |
|
Beech |
Classic |
Ultra matt lacquered |
Ships decking* |
|
Beech SylvaRed |
Classic |
Ultra matt lacquered |
Ships decking* |
|
Ash Nordic |
Classic |
White pigmented and |
Ships decking* |
|
Black Oak |
Harmony |
Ultra matt lacquered |
Ships decking* |
|
Maple |
Classic |
Ultra matt lacquered |
Ships decking* |
|
Oak Pearl |
Harmony |
Metallic-pigmented and |
Ships decking* |
*See Fig. 1
**See possibilities in current Product selector.
Fig. 1
SHIPSDECKING
Strip made of foamed PVC with closed cells to absorb natural movements in the hardwood floor. The strip measures 3x8 mm and installed it provides a 2 mm wide joint, which varies over the year according to changes in the relative humidity.
PRODUCT RANGE, SPORT
|
Product |
Grade |
Surface |
|
Beech SylvaSport |
Champion |
Ultra matt lacquered |
|
Maple |
Champion |
Ultra matt lacquered |
|
Sylva Squash: |
Champion |
Silk matt lacquered |
|
Sylva Dance: |
Champion |
Silk matt lacquered |
TECHNICAL PROPERTIES
Resistance to Indentation
Oak (all variants): Approx. 3.4 Hardness Brinell
Ash (all variants): Approx. 3.4 Hardness Brinell
Maple (all variants): Approx. 3.4 Hardness Brinell
Beech (all variants): Approx. 3.7 Hardness Brinell
Slip Resistance, (preliminary):
Factory lacquered:
Approx. 0.4 (DIN 18032/2) and Approx. 85 (EN 14904)
Factory oiled:
Approx. 0.4 (DIN 18032/2)
Fire Classification, (DIN EN 13501-1): Cfl – S1
Thermal Conduction, (Transmission coefficient):
Approx. 0.17 W/mK
Heat Resistance: Approx. 0.13 m2 K/W
Light Reflection (Reflectance for diffuse light):
Beech Classic, lacquered: 48%
Beech SylvaKet Classic, lacquered: 22%
Electrostatic Charging (kV), Beech:
Factory lacquered:
25% RH = 3.5
50% RH = 2.0
65% RH = 1.0
Factory oiled:
25% RH = 1.0
Oiled Beech is suitable for use in rooms with computers. (DIN 54345/1-prEN 1815)
Substances of very high Concern
The products do not contain substances from the REACH Candidate List, ”Candidate List of Substances of Very High Concern for Authorization, whose content exceeds 0.1 weight percent.
FACTORY SURFACE TREATMENT
Lacquered
Beech, Beech SylvaSport, Oak, Ash & Maple:
Priming: Several coats of UV-light curing primer.
Top finish: Two-component polyurethane lacquer, silk/ultra matt.
Total film thickness: Min. 40 µ.
Beech SylvaKet and SylvaRed:
Pre-treatment: Coloured throughout with a NH3-treatment to achieve a light brown colour.
Before lacquering Beech SylvaRed is also toned with a reddish stain. If Beech SylvaRed is sanded to bare wood, it will appear like Beech SylvaKet.
Priming: Several coats of UV-light curing primer.
Top finish: Two-component polyurethane lacquer, silk- or ultra matt.
Total film thickness: Min. 40 µ.
Ash Nordic, Beech Nordic & Oak Nordic:
Priming: White toned stain.
Intermediate treatment: Several coats of UV-light curing lacquer.
Top finish: Two-component polyurethane lacquer, ultra matt.
Total film thickness: Min. 40 µ.
Oak Pearl:
Priming: Water based transparent stain.
Intermediate treatment: Several coats of UV-light curing lacquer.
Top finish: Two-component polyurethane lacquer, ultra matt.
Total film thickness: Min. 40 µ.
Black Oak:
Pre-treatment: Coloured throughout with a NH3-treatment to achieve a dark brown colour.
Intermediate treatment: Several coats of UV-light curing lacquer.
Top finish: Two-component polyurethane lacquer, ultra matt.
Total film thickness: Min. 40 µ.
Oiled
Priming: Surface saturation using oxidative drying urethane oil.
Top finish: Oxidative drying urethane oil.
Total oil consumption: Addition to a full surface saturation.
Untreated: Final sanding to grit 150.
Squash
Untreated: Final sanding to grit 40.
Lacquered: Final sanding to grit 40 + 1 coat of a silk matt two-component polyurethane lacquer.
Sylva Dance: Final sanding to grit 40 + 2 coats of a silk matt two-component polyurethane lacquer.
PACKING AND WEIGHT
Wrapped in polythene.
Pack size / Length / m2
8 floor boards / 3700 mm / 3.82 m2
4 floor boards / 3700 mm / 1.91 m2
8 floor boards / 1830 mm / 1.89 m2
One layer in packs of 1830 mm length may consist of two floor boards of 900 mm.
Weight kg/m2
Beech (all variants): 16.35 kg
Oak (all variants): 15.50 kg
Ash (all variants): 14.50 kg
Maple: 14.5 kg