Interesting stuff here Jason - thanks. Many years ago I was an automotive painter, sometimes using Imron and occasionally a respirator. If they had suits to wear I never heard of them. Maybe that explains why I only made it to structural engineer and not to aeronautical. Have you any idea what long term symptoms may be for unfiltered Imron use?
RVC
Imron type of paints, along with 2 part LPUs cure by chemical and mechanical bonds. The particle size is extremely small, and flows really well. The reducer is combined with a small amount of Isocyanide harder and mixed to the pigment for Imron/PPG/Acrylic Enamels, and LPUS are a 2 part harder/pigment as well. Extremely small/thin layer, great coverage, etc. DANGEROUS. This stuff is soo small and the reducer is REALLY bad because it takes the isocyanide with it as it evaporates. So you get a bad vapor that is not filtered by any mask. Can be absorbed by the skin, etc. You /can/will die if exposed directly, and many get very sick just handling the stuff. Sanding, etc can create noxious gas as well! Fresh air respirator is minumum protection. Positive pressure suit is reccomended. In some states it is illegal even to buy it if you are not a shop with the right EPA certified filters.
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