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Paint Coatings Biodeterioration

SpecialChem / Mar 24, 2004

Paint coatings are all more or less easily biodegradated, due to the organic nature of main elements of formulation. The biological elements responsible for this degradation are of different nature, potentially induced by surrounding environment. This is why we tried to determine general rules of formulation for the processing of paint coatings resistant to these biodegradation mechanisms and thus lasting longer. We focused our study on the exterior building paint coatings. Experimental Studies Aspects dues to the chemical nature of the paint coating constituants Nature of the thickeners Our main purpose was to find out which chemical element is more especially responsible for this biodegradation phenomena. This article describes a study that was done in collaboration with the Mycology Lab. Of the University of Lyon.1-2 The samples were classified, according to the origin (city or countryside) and the season of the collect (fan, spring). The repartition of the species is shown on figures 1, 2, and 3.

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