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SWISS KRONO sp. z o.o.

ul. Serbska 56, 68-200 Żary
woj. lubuskie, POLSKA

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Technical Data
HPL

This section of the HPL Package contains crucial technical data, useful for everyday application of HPL SWISS KRONO. A summary of information for everyday use, such as: product parameters, storage conditions, or cleaning and maintenance methods.



Structure

HPL laminates are produced in sheets or rolls. The upside of each sheet has a decorative layer – unicolour, imitating wood or stone, or a whimsical pattern.
The underneath is pre-polished and prepared for gluing or joining with a carrier board.

HPL contains several layers: Each layer is made of a different kind of paper, prepared and produced in a different way.

1. Overlay protective layer - top invisible layer is special paper impregnated with melamine resin which makes the HPL highly resistant to abrasion and scratching.

2. Decorative layer – printed paper impregnated with melamine resin with various patterns: wood-like, stone, fancy or in monochromatic colours.

3. Core – impregnated paper with phenol resin.



Room conditions during HPL laminates processing

Room humidity and temperature have a crucial influence on HPL laminate linear dimension changes.

Optimum conditions:
Temperature: 18-22°C
Air humidity: 50-60 %.

Note: Storage and room conditions during processing have a direct influence on HPL SWISS KRONO laminates gluing and processing results.


Processing

HPL SWISS KRONO processing should be performed on a stable, flat and even surface. The laminate should be placed with the decorative side up. Do not let the laminate vibrate or tremble. Sharpness and proper movement of tools are crucial. Decorative side cracks, breaks or bumps result from inappropriate processing or wrong tool. Use standard carpenter’s tools, such as circular bench saws, hand-held circular saws and jigsaws, for cutting. 

Saw manufacturer’s recommendations should be observed.

Good quality of the processed edge depends on:

- teeth shape
- teeth number
- cutting speed
- feed speed

HPL Swiss Krono laminate cutting

Packaging

HPL format available in stock (standard):

 

HPL in sheets:

• 4100x1320x0.5 mm

HPL formats available on request

 

HPL in sheets:

• widths: 630 - 1320 mm and 2080 mm

• lengths: 500 – 5600 mm

• thickness: 0.15 – 1.2 mm

HPL in rolls:

• Thickness range: 0.20 to 0.60 mm

• Maximum roll diameter: 400 mm

• Core diameter: 150 mm


Gluing HPL SWISS KRONO

Decorative HPL SWISS KRONO laminates may be used in a variety of ways by gluing them to carrier wood-derived materials..

When making combined elements out of HPL SWISS KRONO and carrier materials, it is crucial to use proper gluing systems matched to the place of use of the finished product.

Before gluing, clean both sides of the laminate and the carrier material thoroughly. All, even the smallest smudges and stains must be removed.

During gluing, follow all adhesive manufacturer recommendations on both adhesive layer application and proper stress.

The following kinds of adhesives are appropriate for wood-derived materials:

Dispersive adhesive
e.g. PVAC = white glue


Condensing adhesive
e.g. urea-formaldehyde/melamine, resorcinol, phenol resins


Contact adhesives
e.g. neoprene adhesives


Reactive adhesives
e.g. epoxy, unsaturated polyesters, polyurethane adhesives


Hot-melt adhesives
e.g. polyurethane hot-melt adhesives

Adhesives Temperature resistance Gluing method Warning
Dispersive adhesive
PVAC from -20 to 100 °C manual, with hand roller/spatula
or machine, with roller,
hot or cold forging
screw clamp
or stationary
press
Two-ingredient PVAC
Condensing resin
Urea-formaldehyde resin from -20 to 150 °C manual, with hand roller/spatula
or machine, with roller,
hot forging
stationary press
with heat
source
Urea-melamine resin
Phenol, resorcinol resin
Contact adhesives
without hardeners from -20 to 70 °C manual, with hand roller/brush, 
adhesive application on both sides, 
short strong press
short
strong press
with roller
with hardeners  
Reactive adhesives
Epoxy/polyurethane from -20 to 100 °C manual, with hand roller/spatula 
or machine, with special roller
with roller and
providing heat
Hot-melt adhesives      
EVA from -20 to 90 °C machine usage
in accommodation
spaces
PA/PO from -20 to 110 °C
PUR from -30 to 140 °C spaces of high
humidity and thermal
stress

Carrier materials

To create the perfect surface, laminate HPL Swiss Krono should be used (glued) on both sides of the carrier material.

It is recommended to use laminates of the same parameters, particularly the same thickness, on both sides.
Remember to glue opposite laminate sheets to the carrier material in the same direction.

Failure to follow above recommendations may result in material deformation. 

Carrier materials

  • Particle boards
  • MDF
  • HDF
  • OSB
  • Plywood
  • Wooden boards

Cleaning

SWISS KRONO HPL should be cleaned with a damp, soft cloth or sponge, with commercially available cleaning agents, such as a solution of dishwashing liquid. After washing with ordinary cleaning products, the laminate should be washed with clean water and wiped dry to obtain a smooth surface without streaks.

 

Before using any cleaner, read the attached description to make sure it is suitable for that type of surface. Do not use cleaners that contain aggressive or corrosive substances or agents that contain abrasive or glossy additives, as they may permanently damage the surface of the laminate. Larger dirt, such as from a marker, nicotine, nail polish or shoe polish, should be removed with spirit or an organic solvent (such as acetone), and then the laminate surface should be washed with clean water and wiped dry.

 

SWISS KRONO HPL is resistant to most substances that can cause stains, such as milk, tea, coffee, wine, syrups. Despite such high performance of HPL, it is recommended to remove residues of the mentioned products from the surface.

 

Special attention should be paid to such products as: blueberry juice, red beet juice or tomato paste.


EN 438-3 standard

HPL Swiss Krono laminates meet the requirements defined by the EN 438-3 standard.

EN 438-3 standard precisely defines the parametersand properties of all types of HPL laminates, including control procedures for unequivocal determining of declared material properties.

SWISS KRONO HPL is produced in accordance with the classification and typical use system contained in EN 438-3 standard, table 3:

  • HGS -  for horizontal applications, general purpose, standard use
  • HGP - for horizontal applications, general purpose, postforming
  • VGS - for vertical applications, general purpose, standard use
  • VGP - for vertical applications, general purpose, postforming

The individual letters stand for:

  • H - Horizontal use
  • G - General purpose
  • S - Standard
  • P - Postforming
  • V - Vertical use

Technical and performance properties of laminates in HGS and HGP types. General Requirements

Property Unit of measurement Requirement Test method
Thickness tolerance mm 0,5 - 1,2 mm ± 0,10 EN 438-2.5
Length tolerance mm +10 / -0 EN 438-2.6
Width tolerance mm +10 / -0 EN 438-2.6
Resistance to scratches N ≥ 3 EN 438-2.25
Abrasion resistance turnover IP ≥ 150, IP + FP/2 ≥ 350 EN 438-2.10
"Impact resistance
(Small diameter ball)"
N ≥ 20 EN 438-2.20
Flatness tolerance mm/m ≤ 60 EN 438-2.9
Edge straightness tolerance mm/m ≤ 1,5 EN 438-2.7
Squareness tolerance mm/m ≤ 1,5 EN 438-2.8
Density g/cm3   ≥ 1,35 EN 1183-1:2004
Stain resistance degree
degree
grupa 1 i 2 = 5
grupa 3 ≥ 4
EN 438-2.26
Light resistance (xenon lamp) Grayscale ≥ 4 EN 438-2.23
Resistance to hot pot base (160°C) degree shiny surfaces  ≥ 3
other surfaces  ≥ 4
EN 438-2.16
Steam resistance
 
degree shiny surfaces  ≥ 3
other surfaces  ≥ 4
EN 438-2.14
Formaldehyde emissions   Class E1 EN 717-1

Technical and performance properties of laminates in VGS and VGP types. General Requirements.

Property Unit of measurement Requirement Test method
Thickness tolerance mm 0,50 - 1,2 mm ± 0,10 EN 438-2.5
Length tolerance mm +10 / -0 EN 438-2.6
Width tolerance mm +10 / -0 EN 438-2.6
Resistance to scratches N ≥ 2 EN 438-2.25
Abrasion resistance turnover IP ≥ 50, IP + FP/2 ≥ 150 EN 438-2.10
"Impact resistance
(Small diameter ball)"
N ≥ 15 EN 438-2.20
Flatness tolerance mm/m ≤ 60 EN 438-2.9
Edge straightness tolerance mm/m ≤ 1,5 EN 438-2.7
Squareness tolerance mm/m ≤ 1,5 EN 438-2.8
Density g/cm3   ≥ 1,35 EN 1183-1:2004
Stain resistance degree
degree
grupa 1 i 2 = 5
grupa 3 ≥ 4
EN 438-2.26
Light resistance (xenon lamp) Grayscale ≥ 4 EN 438-2.23
Steam resistance
 
degree shiny surfaces  ≥ 3
other surfaces  ≥ 4
EN 438-2.14
Formaldehyde emissions   Class E1 EN 717-1