Geiger counters could pick up readings from pants returned from a dry cleaner and from clothes stored away in a cedar chest." Safety Wristwatch produced for the US Army during World War II showing characteristic sandy deterioration of radium–zinc sulfide painted hands and numbers. They worked in unvented rooms, they wore smocks that they laundered at home. They were told that eliminating lip-pointing had ended earlier problems. Luminous Processes employees interviewed by a journalist in 1978 stated they had been left ignorant of radium's dangers. Stopping this practice drastically reduced the amount of radium ingested and therefore, the incidence of malignancy. By 1930, all dial painters stopped pointing their brushes by mouth. The disease, radium-induced osteonecrosis, was recognized as an occupational disease in 1925 after a group of radium painters, known as the Radium Girls, from the United States Radium Corporation sued. This practice resulted in the ingestion of radium, which caused serious jaw-bone degeneration and malignancy and other dental diseases. Radium dials were typically painted by young women, who used to 'point' their brushes by licking and shaping the bristles prior to painting the fine lines and numbers on the dials. The Radiolite series, made in various sizes and models, became a signature of the Connecticut-based company. The Ingersoll Watch division of the Waterbury Clock Company, a nationally-known maker of low-cost pocket and wristwatches, was a leading popularizer of the use of radium for watch hands and indices through the introduction of their "Radiolite" watches in 1916. The use of radium to provide luminescence for hands and indices on watches soon followed. The company later changed its name to the United States Radium Corporation. Willis founded the Radium Luminous Material Corporation. Radium was discovered by Marie and Pierre Curie in 1898 and was soon combined with paint to make luminescent paint, which was applied to clocks, airplane instruments, and the like, to be able to read them in the dark. This is my first time using either matte clear or fluorescent paints, so I'm not really too certain about anything.See also: Radium Girls November 1917 ad for an Ingersoll "Radiolite" watch, one of the first watches mass marketed in the USA featuring a radium-illuminated dial. Will matte clear coat significantly dull the fluorescence? Will uncoated fluorescent paint be too vulnerable to wear and dirt?Īll input welcome. The tradeoff here is whether to maximize fluorescence or protection. I don't know if matte is really what I want, but I'm curious to try it, and a few matte rockets I've seen look fantastic.Īnyway, there seem to be two ways I could go here:ġ) Apply matte clear to entire rocket, after fluorescent coat is appliedĢ) Apply matte clear to black undercoat, then apply fluorescent on top of that, and then leave the fluorescent uncoated. The final finish for the rocket will be matte, to be provided by Krylon UV-resistent matte clearcoat. I'm going to be painting gloss black, then applying some fluorescent yellow-green accents (Testor's enamel). I am still not quite sure the best way to handle clearcoating though. I know that fluorescent paints should have white under them, and are naturally flat.
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