SYMPOSIA PAPER Published: 01 January 1972
STP37168S

Biological Deterioration of Paints and Paint Films

Source

Micro- and macroorganisms can destroy both the decorative properties and durabilities of paint films, Figs. 6.4-1 and 6.4.2. Biodeterioration of paint falls into two general categories: enzymatic degradation of protein and cellulosic thickeners that produces an irreversible viscosity loss in latex emulsion paints while still in the container, and microbial disfigurement and deterioration of both water-thinned and solvent-thinned paint films. Enzymes catalyzing the degradation of protein and cellulosic thickeners may be introduced into the paint through contaminated raw materials, storage tanks, and other equipment or be released by bacteria (and less frequently, yeast) growing actively in the liquid paint.

Author Information

Ross, RT
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Details
Developed by Committee: D01
Pages: 366–370
DOI: 10.1520/STP37168S
ISBN-EB: 978-0-8031-4607-5
ISBN-13: 978-0-8031-0099-2