Steel Division

Corrosion protection

Best corrosion protection from production to further processing

Steel optimized against wind and weather. Steel is often found in applications exposed to the most extreme conditions. Like hardly any other material, it is exposed to the force of the elements. With the passivation treatments from voestalpine, the steel is optimally prepared to meet the challenge. 

At voestalpine, a great deal of importance is attached to perfect workability in all common processes.

clearcover® – The sustainable and environmentally friendly passivation

clearcover® is an environmentally friendly and sustainable passivation system without chromium III or chromium VI and is free from heavy metals such as molybdenum, manganese or cobalt. The additional innovative treatment is applied to hot-dip galvanized (Z, ZM, ZF) or electrogalvanized steel strip and can be supplied in combination with oil or phosphating.

  • Sustainable and environmentally compatible passivation

  • Reliable corrosion protection during transport

  • Excellent corrosion protection during storage 

  • Good resistance to emulsions

  • Excellent weldability

  • Direct paintability

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clearcover® - Die chromfreie Passivierung 2.0
Passivation processes in comparison
Corrosion protection (bright finish)

Direct coatability


Weldability

 


Stack
SST
Constant humidity/corrosive environment test
clear cover—the new chromium-free passivation
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Existing chromium-III passivation
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multiface® - Der nachhaltige High-Tech Allrounder

multiface® – The high-tech additional treatment

The multiface® coating is 1 to 2 µm thick and is a multifunctional, almost invisible sealant (thin organic coating = TOC) on hot-dip galvanized steel strip (Z, ZM) with excellent corrosion protection properties and direct powder coating capabilities.

  • Sustainable and environmentally friendly sealant

  • Anti-fingerprint properties

  • Excellent corrosion protection

  • Good joinability

  • Compatibility with emulsion solutions

  • Reduced down to three process steps

  • Good forming properties

  • Direct paintability

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Direct cost savings through reduced number of process steps (oiling, degreasing, rinsing + drying)

When using steel strip coated with multiface®, the oiled part must not be degreased, rinsed or dried. The direct formability and excellent adhesive properties of the material make it possible to directly powder-coat or adhesive-bond the material after deep-drawing. This substantially reduces the processing costs.

dryform® – Dry forming aids

dryform® is a dry forming aid for hot-dip galvanized or electrogalvanized steel strip with excellent forming and good corrosion protection properties. Typical applications are found in the tube and section industry as well as in the household appliance industry.

  • Sustainable and environmentally friendly dry forming aid 

  • Excellent forming properties

  • Very good processing properties

  • High level of work safety and process reliability

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dryform - Die nachhaltige, trockene Umformhilfe

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