Characteristics of Super-LumiNova®
In contrast to its predecessors Radium and Tritium, Super-LumiNova® is not radioactive. It is also REACH-compatible (i.e. harmless to health), temperature-resistant and insensitive to environmental influences – provided it has been applied correctly.
Durability of Super-LumiNova®
The luminous pigments can be charged with both daylight and artificial light (e.g. from a flashlight) and then continuously emit the stored light energy, i.e. the afterglow becomes weaker and weaker until the watch is charged again with daylight or artificial light. The charging process itself can be repeated indefinitely, as Super-LumiNova® does not wear out and does not lose its luminosity over the years.
In order to get a good result when applying the luminescent pigments, various things must be considered, such as the correct mixing ratio of paint and pigments, the ambient temperature, the thickness of the application, the type of drying (bake or in the air), the application of a second layer or how the hands, indices or numerals were cleaned before the luminous material was applied.
Super-LumiNova® lighting duration
Depending on how intensely the luminous pigments are charged, they can glow for a few minutes or all night. If the luminous markings have been applied in sufficient size and mass, perfect readability is guaranteed throughout the night in accordance with ISO 3157. Incidentally, how thick the luminous material was applied has no influence on the duration of the light – it is a purely optical design element, since numbers and indices appear more three-dimensional when applied in multiple layers.
The different quality grades relate to the afterglow power and the duration of the light. Super-LumiNova® is available in three different qualities:
- Standard Grade
- Grade A
- Grade X1
The Standard Grade has the shortest burn time and X1 the longest.
Grade X1 is easier to activate and after two hours it glows 60% brighter than Grade A.
The most common Super-LumiNova® color variants