● When using long-acting glow in the dark material in plastic, output products will be darkening phenomenon, which temporarily is no way to eradicate, but can be reduced.
There are two reasons for black: mainly luminous relatively high hardness, and process metal in contact with each other will produce friction, the surface of the metal oxide layer is black, after rubbing down in the product mix to black; followed by plastics prolonged high temperature will change color, luminous heat slowly and evenly dispersed in the plastic, indirectly increasing the time the high temperature of the plastic, the plastic will lead to discoloration.
Therefore, in use, to try to avoid contact with metal and reduce the high temperature time.
● luminous powder comprised of fine particles having a mixture which can not be dissolved. There are several luminous powder particle size division, to choose the right product according to claim luminous particle size.
● Short-acting luminous powder used in plastics no black phenomenon, the application easier.
● luminous light-emitting principle of simply withdrawing light - light, transparent plastic, the higher the easier the luminous effect performance.