PRODUCT INFORMATION

Solid Hardwood Flooring | Product Information

B 2.0

 


PRODUCT DESCRIPTION

Junckers 22 mm solid Hardwood Parquet floors are factory finished and ready to install in accordance to Junckers Laying Instructions. See C 1.0 and D1.0

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.


Fig. 2

Strip made of foamed PVC with closed cells to absorb natural movements in the hardwood floor.

The strip measures 3x8mm and installed it provides a 2 mm wide joint, which varies over the year according to changes in the relative humidity.

 

 

PRODUCT RANGE, COMMERCIAL / RESIDENTIAL

Product Grade Surface Product variants

Beech
Beech Sylvaket Beech Sylvared Ash
Oak

Classic Harmony Variation Ultra matt lacquered Silk matt lacquered Clear oil Untreated Ships decking* Bevel (Oak & Ash) Colours** Texture**
Ash Nordic Beech Nordic Oak Nordic Classic Harmony Variation White pigmented and ultra matt lacquered Ships decking* Texture**
Black Oak Harmony Variation Ultra matt lacquered Clear oil Untreated Ships decking* Texture**
Maple Classic Variation Ultra matt lacquered Silk matt lacqured Clear oil Untreated Ships decking*
Oak Pearl Harmony Metallic-pigmented and ultra matt lacquered Ships decking*

*See Fig. 2
**See possibilities in current Product selector.


PRODUCT RANGE, SPORT

Product Grade Surface
Beech SylvaSport Beech Sylvaket
Ash
Champion Premium Club Ultra matt lacquered Silk matt lacquered Untreated
Maple Champion Club Ultra matt lacquered Silk matt lacquered Untreated
Sylva Squash
Beech
Maple
Ash
Champion Silk matt lacquered Untreated

 


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)


FACTORY SURFACE TREATMENT

Lacquered
Beech, Beech SylvaKet, Beech SylvaRed, Beech SylvaSport, Oak, Ash & Maple:
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: NH3-treatment to achieve the dark 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
Final sanding to grit 40.
Lacquered: Final sanding to grit 40 + 1 coat of a silk matt two-component polyurethane lacquer. 


PACKING AND WEIGHT

Wrapped in polythene.

Bundle / Length / m2
8 boards / 3700 mm / 3.82 m
4 boards / 3700 mm / 1.91 m
8 boards / 1830 mm / 1.89 m
One layer in bundles of 1830 mm length may consist of two boards of 900 mm.

Weight kg/m2
Beech (all variants): 16.2 kg
Oak (all variants): 15.7 kg
Ash (all variants): 15.2 kg
Maple: 15.5 kg


FIG. 1

PRODUCT DATA / TOLERANCES

Nominal Board Dimensions Thickness: 21.8 mm (±0.2 mm) Width: 129.0 mm (±0.2 mm) Length: 3700 / 1830 / 900 mm (±1.0 mm)

Drying Method
Maple and Beech, all variants: Press dried.

Oak and Ash, all variants: Kiln dried.

Moisture Content
Beech, Maple, Oak and Ash (all variants except Black Oak): Average moisture content 8 % (±2 %).

Black Oak: Average moisture content 9 % (±2 %)

Precision Engineering
Landing Deviation: 0.2 mm (0.3 mm in localised areas).
Board ends are right angled at ±0.3mm.

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