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Home  > Events  > EC LIVE | September 2019 | Wood Coatings

Sunday, 22 September 2019

EC LIVE | September 2019 | Wood Coatings

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Explore the editorial online feature of the European Coatings Journal. Each month, the author of the lead article of the current issue will expand on the lead article and will provide more context.


Date:


24 September 2019, 15:00 h CET

Title:


2K waterborne polyurethane wood coatings systems drying as fast as solventborne

Speaker:     


Dr. Eva Tejada | Covestro

Abstract:   


Around 40% of the global industrial wood coatings market is based on traditional solventborne PU technology - predominantly on aromatic polyisocyanates. Waterborne polyurethane systems are the technology of choice when high-performance but environmentally-friendly solutions are required. The inherently slower drying of waterborne PU solutions, however, has limited the market shift towards this low emission alternative so far.
To overcome this hurdle, Covestro has developed a novel, hybrid hydrophilic polyisocyanate. The special product design has created a new milestone in PU chemistry: the introduction of an aromatic crosslinker building block without spoiling the compatibility with water and with a pot-life comparable to standard waterborne 2 component systems. This new hydrophilic PU crosslinker is the first of its kind in the market, which allows waterborne PU to be as fast-drying as well-known solventborne systems. It will facilitate the transition towards more environmentally-friendly solutions for wood coatings, without any negative impact on productivity. 

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Bettina Hoffmann
Bettina Hoffmann
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