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With ongoing scrutiny and sensitivity in the coatings industry to move towards less hazards in the workplace, greater emphasis is placed on suitable amorphous technology to replace crystalline silica technology.
silica is shown in Figure 1. The most common types of silica used in modern coatings are produced either by a liquid phase process of precipitation or gas phase process of lame hydro-lysis. Precipitated silica is produced by the controlled reaction of sodium silicate (“water glass”) and sulfuric acid similar to the production of silica gels.
As bystanders during construction or demolition activities, painters may also be exposed to asbestos or crystalline silica. During the application of paint, workers are exposed primarily to solvents, whereas the mechanical removal of paint mainly leads to exposure to pigments and fillers.
19 Οκτ 2000 · WASHINGTON — The final report of a study on health risks posed by exposure to crystalline silica in latex paint concludes that such exposure appears to present “no demonstrable lifetime carcinogenic risk” to do-it-yourself or professional painters engaged in sanding or spray-painting activities.
28 Ιουλ 2023 · The specific properties of silica sand, such as its high silica content and low oil absorption, make it an ideal choice for paint manufacturing. Its ability to enhance viscosity and flow control helps achieve the desired texture and finish of the paint.
OEHHA listed crystalline silica (of airborne particles of respirable size) on the Prop. 65 list on October 1, 1988. The listing includes an exemption (Safe Use Determination) for crystalline silica in interior lat latex paint.
11 Φεβ 2004 · As we understand from this study and your letter, flat latex paints can contain as much as 6 percent crystalline silica in the form of cristobalite, although most formulations contain less than 1 percent crystalline silica.
