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2K waterborne PU coating brings protection and brilliance to façades

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Covestro’s high-bay warehouse in Dormagen is one of several Covestro artwork objects designed by façade artist Martin Heuwold. The façade composition with its bright colors in Covestro’s corporate design required a coating that was both protective and decorative at the same time.

Task

Coat an industrial concrete façade

For the concrete façade of our Dormagen warehouse, we partnered with coating supplier MC-Bauchemie to develop a solution based our polymers. 
Challenge

Find a protective coating with lasting color brilliance

Two requirements had to be fulfilled: the sensitive colors had to stay bright despite UV exposure for a long time; and the durability of the façade structure had to be increased to ensure long-lasting building protection. 

The coating technology chosen also provides very good protection against carbonation and thus increases the durability of the concrete façade structure.

Dr. Joachim Käppler

MC-Bauchemie

Solution

2K WB PU concrete façade coating based on Bayhydur® / Bayhydrol®

The 2K polyurethane waterborne technology chosen was based on Bayhydur® / Bayhydrol®. This enables long-lasting colors while simultaneously protecting the structure of the building. The high degree of dirt pick-up resistance gives the building façade its long-lasting color brilliance. As Dr. Joachim Käppler, MC-Bauchemie, points out, “the coating technology chosen also provides very good protection against carbonation and thus increases the durability of the concrete façade structure.” The artist Martin Heuwold, MEGX, was also delighted: “Besides the high level of color brilliance and durability, the coating system has a good overcoating time, which is an advantage for the painter in terms of efficient working.”

Besides the high level of color brilliance and durability, the coating system has a good overcoating time, which is an advantage for the painter in terms of efficient working.

Martin Heuwold

Artist, MEGX

Why Bayhydur® and Bayhydrol® were the right solution for the Dormagen warehouse

  • Long-lasting color: High resistance to dirt pick-up and UV exposure ensures lasting color brilliance.
  • Good overcoating time: Greater efficiency for painters.
  • Easy cleaning: 2K technology enables easy removal of graffiti.

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