Duplex coating

The colour coating of hot-dip galvanized steel – also called Duplex system is a particularly high-quality protective system. Zinc and colouring complement one another’s effectiveness to increase the duration of corrosion protection by 1.2 to 2.5-fold. The colouring can be either be applied in the colour coating process or by powder coating.

The advantages

The advantages of a Duplex system with powder coating are:

  • Very good long-term corrosion protection
  • Suitability as a protection system for high-level corrosion exposure up to corrosion class C5
  • Attractive appearance, unlimited colour variety
  • High level of mechanical resilience
  • Perfect all-round protection also of places that are covered and difficult to access as well as cavities
  • High level of cost effectiveness due to its long service life
  • Environmentally-sound process
  • No drying needed, can be used straight away and transported immediately after coating

According to examinations by the Institute for Corrosion Protection in Dresden, a Duplex system, compared with an average colour coating with hot-dip galvanizing:

  • is 10 times more abrasion resistant
  • is 8 times more chip resistant
  • offers 20 times more edge protection

Our range of services

  • Our group of companies means we can offer you hot-dip galvanizing and powder coating ex works from many locations in Germany, Austria and Hungary according to the motto “all under one roof”.