In the recent years, the improvement and assessment of the long-term stability of fire protection coatings has come into the focus. The topic has developed into an urgent and challenging task; new concepts and a strengthening of our point of view are demanded. We have served different clients with advice, research, and co-operation: industrial partners, universities, and the technical authority Deutsches Institut für Bautechnik (DIBT). One 3-year research project has beensuccessfully finished, the other one will end in 2022, both well bound in our manifold activities and competence with respect to reactive fire protection coatings, intumescence, and weathering resistance. The paper of the month “A chain is no stronger than its weakest link: Weathering resistance of water-based intumescent coatings for steel applications” gives a nice overview of our interdisciplinary research done in the first project, financed by the MNPQ programme of the Federal Ministry for Economic Affairs and Energy (BMWi). Our study broadens the view on the task. We used analytical methods to characterize the decomposition of systematically varied materials. We applied self-designed fire testing methods, enabling us to characterize a large number of specimens after different times of demanding aging. Our systematic approach delivers a much more differentiated insight in the complex interplay of the different components when exposed to weathering.
A chain is no stronger than its weakest link: Weathering resistance of water-based intumescent coatings for steel applications
Lars-Hendrik Daus, Bernhard Schartel, Volker Wachtendorf, R. Mangelsdorf, Manfred Korzen
published in Journal of Fire Sciences, Vol. 39 issue 1, pages 72-102, 2021
BAM, Division Fire Engineering and Division Technical Properties of Polymeric Materials