How long does glow in the dark glow for ?

Luminous paint contains a certain energy-storage luminescent material-activing alkaline earth Aluminate, which itself has specific properties of light-storage and luminescence. It can store light energy under light and emit the stored light energy in a dark environment to produce a glowing effect.

HOW LONG CAN THE BRIGHTNESS OF LUMINOUS PAINT LAST?

Due to the characteristics of the luminous powder itself, there are particular prerequisites for the luminescent paint to glow. First, it must be charged by light and only emit a glow in a darker environment. The shiny time of glow in the dark paint depends on the following factors:

① The luminous duration of the glow in the paint depends on the brightness level of the glowing powder used in the luminous paint. The higher the brightness level, the longer the glowing time. Generally, the bright time of the high-grade luminescent paint will last more than 12 hours.

② The proportion of glow in the dark powder added in the luminescent paint, the higher the combined ratio, the better the bright performance. The common adding proportion in the market is usually about 20%, and the high-grade luminescent paint can reach 40%, the brightness and the duration of bright would naturally increase.

③ How much absorption of light energy, generally 10-30 minutes of charging, can make the luminous paint full of energy. The required charging time depends on the energy intensity of the light source, such as 365nm purple light, which can make the luminescent paint quickly filled with light within 5 minutes. The fully charged glow in the dark paint can glow for more than 12 hours in a dark environment.

④ There are some other factors, such as the particle size of the luminous powder used in glow in the dark paint. The larger the particle size, the better the glowing effect. But the excessively large particle size will affect the flatness of the luminescent paint film, and the glowing effect will not as uneven as the ultra-fine particle size luminous powder. At this point, you can choose according to your specific painting location needs.

Therefore, in summary, combining various factors, the luminous time of the glow in the dark paint with excellent performance can exceed twelve hours. Of course, this is for the industry standard; the so-called luminescence describes that the brightness value is higher than 0.32mcd / ㎡ . But human eyes have different perceptions of brightness, so there is no fixed conclusion.