Quantification of volatile organic compounds and particulates associated with powder coat painting
Marcy, Jerome D.
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Powder coat painting operations have revolutionized the conventional painting process by utilizing solid particles for coating instead of liquid paints. Organic based liquid paints often use higher contents of volatile organic compounds which have created exposure issues and workplace practices that are moderately eliminated through the use of powder coating. The constituencies of organic based resins that are typically used within powder coating operation are believed to rarely become volatilized due to the low temperatures that are associated with powder coating operations. Volatilization of these resins is reported to occur at temperatures well above the normal operating temperatures of a typical powder coating operation. In addition to potential exposures to volatile organic compounds, particle sizing of powder coating paints are ideal for inhalation. Determination of volatile organic compounds and particulate matter, at two different facilities that utilize powder coating operations, were observed through the use of direct reading instruments. . Volatile organic compounds concentrations were not observed to exceed 0.2 parts per million at either of the facilities evaluated. The highest mean concentration of particles was observed within the older facility and equated to 3.4 mg/m3.