The rare earth long twilight photo luminescent powder produced by our company, has the excellent stability, aging resistance, and long life service as well; It does not need any film sustain, and can suffer long time exposure from the sunlight repeatedly; It is very steady in the moist air and ultraviolet irradiation; It has no harm to human body, and no pollution to environment; Being a kind of additive, it can also be put averagely in any kind of transparent mediums, like coating, ink, plastic, painting, glass, etc, and makes the mediums shine, which not only gives warning direction, but also has adorn & embellish effect;
This kind of long twilight photo luminescent powder can be used in making luminous plastic particles, luminous ceramics, luminous paintings, luminous inks, luminous coatings, luminous sign boards, luminous fire-prevention signs, luminous switches, luminous buttons, luminous plastic objects, luminous toys, luminous glasses, luminous handicrafts, etc.