ADVANTAGES
- Durability
- Corrosion resistance
- Long-term aesthetic appeal
- Excellent workability
- Minimal maintenance
- Recyclable and environment friendly
THE MAIN CHARACTERISTICS
- Appearance: color, shine, surface treatment (smooth, grainy, textured, relief etc.)
- Key attributes: flexibility, corrosion resistance, UV resistance
- Specifics: chemical resistance, emissivity, anti graffiti, anti-dirt surface
Organic coated steels are produced in the coil coating process when (organic) coating material is applied on rolled metal strip in a continuous process that includes cleaning, if necessary, and chemical pre-treatment of the metal surface and one-side or two-side, single or multiple application of (liquid) paints subsequently cured in ovens and steel is finally rolled into coils.
Quality control system has been implemented as an effective instrument of high quality production and products in accordance with international standard ISO 9001, issued by TÜV CERT. Basic material for production of organic coated steels is hot dip galvanized sheets or cold rolled sheets without surface treatment.
BASIC PROPERTIES
The properties of coil coated flat product shall comply with requirements specified in
international or national standards. Required properties, tolerances and standards should be
indicated at the time of enquiry and order.
The inspection of the color of the organic coating consists of conducting a visual
comparison between sample of the manufactured product and a reference sample of prior
agreement. For a more thorough inspection, the difference in color can be measured
instrumentally, however it should be noted that the type of measuring instrument or
measuring method/system is influencing results significantly. Color cards, RAL shades often
do not define exact colors and therefore only serve as a guideline. Color perception varies
from one color to the other and from one finish to the other (gloss variations, embossed,
textured, matt, metallic pigmented, pearlescent coatings and finishes etc.). These specific
finishes may exhibit aspect and color variation from one production batch to another. It is
also important to maintain directionality to ensure color consistency.
GLOSS RANGES ACCORDING TO
EN10169
| Gloss range (informative indications) | Matt | Low gloss | Satin | Semi-gloss | Gloss | High gloss |
|---|---|---|---|---|---|---|
| Gloss unit range (60°) | ≤ 10 |
> 10 ≤ 20 |
> 20 ≤ 40 |
> 40 ≤ 60 |
> 60 ≤ 80 |
> 80 |
Gloss is optical property of a surface characterized by the ability of the surface to reflect light.
If gloss is not specified in the order, standardly applied is satin gloss.
DEGREES/RANGE OF ELASTICITY
| Flexibility range |
High flexibility, for severe forming conditions |
Standard flexibility |
|---|---|---|
|
Minimum bending radius (T nominal thickness of the product) |
<1T |
max. 3,0 T for drawings grades |
Depending on the end use of the coated sheets, the properties and flexibility of the product need to be negotiated at the time of enquiry and order. The flexibility of the product is evaluated by a T-bend test performed on the outer/exposed side. The flexibility of the product depends on the thickness of the substrate, the metallic layer and the organic coating. No visible cracks in the organic coating layer shall be detected during the flexibility tests at 10x magnification.
BASE MATERIAL/SUBSTRATE
| Utilization | Standard | Grade | |
|---|---|---|---|
| galvanized 1) substrate | Drawing | EN 10346 | DX51D+Z, DX52D+Z, DX53D+Z, DX54D+Z 3), DX56D+Z 3) |
| Structural | EN 10346 | S220GD+Z, S250GD+Z, S280GD+Z, S320GD+Z, S350GD+Z | |
| cold rolled 2) substrate | Drawing | EN 10130 | DC01, DC03, DC04, DC05 |
| Structural | DIN 1623/09 | S215G | |
| Drawing | DIN 1623:83 T1 | St12 |
1) galvanized - cold rolled strip with metallic coating
2) cold rolled - without metallic coating
3) subject to prior agreement
DIMENSIONS OF SHEETS AND COILS - COLD ROLLED SUBSTRATE (mm)
| Nominal thickness | Width | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| 750 | 1001 | 1 100 | 1 250 | 1 261 | 1 300 | 1 331 | 1 400 | 1 500 | |
| 0,40 - 0,49 | |||||||||
| 0,50 - 0,55 | |||||||||
| 0,56 - 0,59 | |||||||||
| 0,60 - 0,80 | |||||||||
| 0,81 - 1,00 | |||||||||
| 1,01 - 1,50 | |||||||||
|
- drawing grades only |
|
| - drawing and structural grades |
DIMENSIONS OF SHEETS AND COILS -
GALVANIZED SUBSTRATE (mm)
| Nominal thickness | Width | |||||||
|---|---|---|---|---|---|---|---|---|
| 800 | 1 050 | 1 100 | 1 261 | 1 300 | 1 331 | 1 400 | 1 500 | |
| 0,40 - 0,49 | ||||||||
| 0,50 - 0,55 | ||||||||
| 0,56 - 0,59 | ||||||||
| 0,60 - 0,80 | ||||||||
| 0,81 - 1,00 | ||||||||
| 1,01 - 1,50 | ||||||||
| - drawing grades only | |
| - drawing and structural grades | |
| - subject to prior agreement |
Inner diameter: 508 / 610 mm
Outer diameter max.: 1 800 mm
Max. weight : 15 t
Use protective inner spoon for diameter 508, no for D610
Other grades corresponding to international (ISO) and national (ASTM,
DIN, JIS, GOST and others) standards.
Other dimensions are subject to prior agreement.
Minimum metal coating masses as specified for certain application need to be indicated at the time of inquiry and order. Weight of zinc coat is 100, 140, 150, 200,225 or 275 g/m2 applied on both sides, or 140/85 g/m2 with higher coating on top side. Other weights are subject to prior agreement. Minimum zinc coating for one side is 50 g/m2.
APPLICATIONS
EXTERIOR APPLICATIONS - WALLS
EXTERIOR APPLICATIONS - ROOF
ROOF EXTERIOR ACCESSORIES
OTHER EXTERIOR APPLICATIONSINTERIOR
APPLICATIONS
ENVIRONMENT
For applications where the prepainted products are submitted to the influence of exterior atmospheres, the end user has to consider the environments for successful usage and correct product application for its long-term service.
how we produce
Organic coated steels are produced by a continuous process of applying an organic coating to a rolled metal strip. The production process involves cleaning, chemical pre-treatment of the metal surface and single or double-sided single or multiple coating applications, which are then cured in an oven. The metal strip and is finally rolled into coils.
COATING SYSTEMS
Depending on the applications, the coil coated steel flat products may be delivered with a specified organic coating in 2, 3 or 4-layers systems. The most frequently used coating systems are illustrated.
Primer, priming coat
first coat of a multiple-coat system
Topcoat, finishing coat
final (uppermost) coat of a multiple-coat system
Backcoat, backing coat
coating of any type on reverse side with no particular requirements on appearance, corrosion
protection, formability, etc.
Protective foil
strippable plastic film applied to the coated surface in order to afford a temporary
protection against mechanical damage
Primer
Primer's function is to give good intercoat adhesion between the substrate and topcoat. It also provides corrosion resistance to the overall coating system.
A variety of primers is available based on the application, requested appearance, environment, thickness, topcoat and overall functionality of final coating system.
The specific suitable primer to be used is recommended by specialists from paint producers.
The basic coatings differ:
resin system/chemical base:
polyester, polyurethane, epoxy, acrylic
applicable thickness:
low build (4-15µm), high build (up to 25-30µm)
physical properties:
viscosity, density, spreading rate
functionality:
flexibility, elasticity, hardness, corrosion resistance
Topcoat
Topcoat is a coating applied on the primer and usually it is the uppermost coating of the coating system that is exposed to the surrounding environments. The function of the topcoat is to provide aesthetic and decorative appearance (color shade, gloss, texture, special effects) and corrosion protection.
There is a variety of topcoats available based on the application and environment intended for service, requested appearance, thickness and functionality of final coating system. The coating material used for topcoats comprises of organic polymers, pigments, additives and solvents which contribute to final properties of topcoat.
Topcoatings differ:
resin system/chemical base:
polyester, polyurethane, polyvinylidenfluorid, acrylic
applicable thickness:
interior (10-15µm), standard (20-25µm), high build (25-30µm)
physical properties:
viscosity, density, spreading rate, hiding power
functionality:
flexibility, elasticity, corrosion resistance
appearance:
smooth, RAL textured and different gloss levels
Backcoat
The backcoat (bottom coating) provides protection from the less aggressive environment found in the
building. In sandwich panels applications it has to provide good adhesion of insulation foams.
Backcoats are available for use with or without a primer. When applied as a single coat, its thickness
is 7-10µm. Using primer increases the thickness and thus provides better corrosion resistance.
There is a variety of backcoats available based on the application, environment and functionality of the
final product.
Backcoatings differ:
resin system/chemical base:
polyester, epoxy, polyurethane
applicable thickness:
single coat (8-12µm), with primer (>12µm)
physical properties:
decorative coloured coat, flexibility, corrosion protection, foam
functionality:
adhesion, anti-pressure marking, anti-fretting
Logistics information
We offer flexible product delivery with multiple options for packaging and methods of transportation.
Shipping
The final products are shipped to the customers via truck, railway, ships or transportation directly from our covered storage yard.
O R G A N I C C O A T E D
contact
CONTACT US PERSONALLY
Oliver Lindvay
General Manager Sales Industries
+421 556 739 477
+421 917 731 269
olindvay@sk.uss.com