Study of the resistances of organic coatings to filiform corrosion |
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| Authors: | Petr Kalenda Michal Petrášek |
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| Institution: | University of Pardubice, Faculty of Chemical Technology, Institute of Polymeric Materials, nám. Cs. Legií 565, 532 10 Pardubice, Czech Republic |
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| Abstract: | The filiform corrosion is a special-type atmospheric corrosion, which broadens below the organic coatings and is characterized by its manifestation in the form of fibres or filaments. An important factor for broadening the filiform corrosion involves also the barrier or chemical resistance of the organic coating. The paper deals with the modes of filiform-corrosion initiation and evaluation thereof under nonpigmented organic coatings based on various binder bases. Also the possibility of retardation of the filiform corrosion by means of zinc powder and the effects of lamellar pigment on the filament shapes are studied. |
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