Teknos coating solutions for wind turbine towers

Teknos has strong evidence of its expertise in the surface treatment of wind turbine towers. Alongside traditional solvent-based products, Teknos has developed alternative water-based and high solids solvent-based paints for tower surfaces. The adoption of the EU’s VOC directive on the restriction on solvent emissions has fostered this development.

A successful surface treatment requires that the work must have been systematically planned when the time comes to select the combination of paints to be used. We have developed our paint systems to meet EN ISO 12944, EN ISO 20340 and NORSOK M-501.

Teknos has an extensive product range and we can provide the correct paint systems for the towers in different environments, including onshore and offshore wind turbine towers.

Traditional paint systems for wind turbine towers

Outer surface of tower
TEKNOZINC Series Epoxy Zinc
TEKNOPLAST PRIMER Series Epoxy
TEKNODUR Series Polyurethane
Inner surface of Tower
TEKNOZINC Series Epoxy Zinc
TEKNOPLAST PRIMER Series Epoxy
Splash Zone, Tide Zone and immersion areas of Offshore Tower
INERTA Series Solvent-free Epoxy
   

Environmentally friendly water-based paint systems for wind turbine towers

Outer surface of tower
TEKNOZINC AQUA 90 SE Water-borne zinc rich epoxy paint VOC 180 g/
TEKNOPOX AQUA series Water-borne epoxy paint VOC 20-40 g/l
TEKNODUR AQUA series Water-borne polyurethane VOC 90 g/l
Inner surface of tower
TEKNOZINC AQUA 90 SE Water-borne zinc rich epoxy paint VOC 180 g/l
TEKNOPOX AQUA series Water-borne epoxy paint VOC 20–40 g/l

 

TEKNODUR COMBI 3560 Polyurethane paint

Innovative high solids paint systems for outer surfaces of wind turbine towers

Low VOC emissions

Thanks to its high solids content, which can even be adjusted to a full 100%, the TEKNODUR COMBI 3560 series emits a notably smaller quantity of VOC emissions than water-borne polyurethane paints do.

Fast throughput

The drying profiles of the TEKNODUR COMBI 3560 series variants vary. The actual drying times at room temperature are adjustable between less than one hour and several hours. Immediately after drying, the work pieces are ready for the next step in the process. This significantly shortens the throughput time in the paint shop, saving time and money. Additional savings are provided by lower energy costs, as the short drying process does not require the elevated temperatures of conventional methods.

Less layers needed

In pursuit of higher efficiency, more and more paint shops are exploring the possibilities of one-layer solutions. The TEKNODUR COMBI 3560 product family contains anti-corrosion pigments and fulfils the ISO 12944 requirements for one-layer paints. As an example, its corrosivity category is C4-M at a dry film thickness of 120 μm. For outer surfaces of wind turbine towers twolayer systems are available up to corrosivity category C5-M/High. With a three-layer system it is possible to reach NORSOK M-501 requirements.

Appealing looks that last

The TEKNODUR COMBI 3560 coats are tough and impact resistant, effectively reducing the need for touch-up paint jobs. The finished coat is weatherproof and resistant against many chemicals. Characterized by the good looks and high UV resistance common to polyurethane coats, its colour and gloss can be further enhanced by a clear coat.

The various products in the new series are suited to a wide range of applications, either as a one-layer alternative or in combination with a compatible primer. Certain variants of TEKNODUR COMBI 3560 can be applied directly to shot-blasted steel, aluminium, zinc and even to concrete surfaces.

TEKNODUR COMBI 3560 product family is the perfect alternative for paint shops striving to reduce their VOC emissions, improve their profitability and interested in additional benefits not offered by conventional paints. All this without sacrificing quality.

Innovative TEKNODUR COMBI 3560 high solids paint systems compared to traditonal systems

Corrosivity class
TEKNODUR COMBI 3560 system
Examples of traditional systems
according to EN ISO 12944 Standard
C4-M PUR 120/1 EPZn(R) EPPUR 200/4
C4-H EPZn(R)PUR 160/2 EPZn(R) EPPUR 240/4
C5-M/H EPZn(R)PUR 200/2 EPZn(R) EPPUR 320/5
NORSOK M-501 EPZn(R)PUR 240/3 EPZn(R) EPPUR 320/5

Ask for more information

Henrik Hansen
Group Commerical Director
henrik.hansen[@]teknos.com
Mobile. +4521471787

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Renewable Energy

Teknos Solutions for Wind Turbines

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When good design and good paint work together

The Danish company Andresen Towers developed a concept for wind turbine towers that simplifies transport and makes it possible to haul towers everywhere. The Teknos product TEKNODUR COMBI 3560 met the high demands made by Andresen Towers for the surface paint.

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