![]() Image Credit: Jafd88 via Creative Commons Because of the grave risks posed by radium, watchmakers stopped using it on watch and clock dials by the 1970s. In addition, radium may also cause lung cancer when it decays to radon gas (a powerful carcinogen). After a few years, many of them developed bone cancer. In the case of Radium Girls, they have swallowed little amounts of radioactive paint as they licked their paintbrushes. Once ingested or even only inhaled, the emitted radiation may interact with the human cells and then damage them. Radium emits alpha, beta, and gamma radiation, which is why it is classified as highly radioactive. Unfortunately, it took years and decades before people realized that it has harmful, fatal even, effects on the body. Yet, because of its glow that many found fascinating at that time, radium was also used in many everyday objects such as dinnerware, paints, and even in drinking water. Radium is a radioactive element first discovered by Marie and Pierre Curie in 1898. Radio-Luminescent paint is composed of zinc sulfide and radium salts. Image Credit: Arma95 via Creative Commons What Should to Do If Your Watch Has Radium Dial.Below we’ll summarize how to figure out if your watch has Radium or other radioactive materials such as Tritium. However, if you are buying vintage watches, those made prior to the early 1960s you could still end up with a watch that has Radium. The best luminous watches now use safe materials such as Seiko’s Lumibrite, Luminox’s Light Technology (LLT), or Rolex’s in-house Chromalight technology. However, this doesn’t remove all the health risks caused by the use of radium. Hence, by 1930, dial painters stopped using their mouths to shape their brushes. The term has become quite popular because these young women used to point their brushes using their tongues, which later on resulted in the recognition of radium-induced osteonecrosis as an occupational disease. They are more commonly known as the Radium Girls. Mostly, young women were painting the radium dials. lumentics night glow colours are considered to be particularly long-lasting, ecological and almost luminescence-stable for at least 20 years.Back in the early 1900s, radium was mixed with paint (producing radio-luminescent paint) to make the elements in the watch dial, such as hands and hour markers, glow in the dark. Compared to conventional, older incandescent colours, they glow up to 20 times more intensively. The colours are constantly recharged by sunlight and artificial light sources. Our premium luminescent paints have a photoluminescence that is long-lasting and an extremely high luminosity for a duration of 2 to 12 hours at a time (depending on the colouring!). For artists and creative enthusiasts, noctilucent colours are therefore a real challenge. Luminous paints are often used as a means of decoration, but above all as a light effect to enhance the mood in dark rooms or at festivities such as Halloween. Outdoors, the luminous paint should be sealed with clear varnish, as this protects it better from the weather and makes it last longer. On smooth surfaces, a primer is conceivable as a supplement. On well-absorbent surfaces (wallpaper and wood) they hold without problems. But also otherwise, self-luminous paints are used in all possible areas of everyday life, as they can be applied as easily as wall and acrylic paints. As they offer the greatest application possibilities among the materials and substances with a luminescent effect, they are very popular in the artistic field as well as in stage and show business. Our glow paints are ultra-strong and non-toxic. Glow paint is also known as "self-luminous paint", UV black light paint, afterglow paint and very bright night glow paint. In addition to the well-known afterglow colours such as green, blue-green or blue, our premium luminous paints are also available in other variants such as yellow and pink.
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