There are no long-lasting luminous poisonous ? On this issue, in fact, as early as 20 years ago, there were already conclusions. Indeed luminous currently available on the market , there are two . First ; ZnS fast luminous highlight short-acting luminous . Its products ; Photoluminescent pigment , the initial light intensity , high temperature of about 800 degrees. Particle size is almost fixed ; around 400 mesh , using a term of 20 years , after re- absorption in the emission time of 20-30 minutes. The color is beige traditional talk , hair is yellow green . Its performance is ; integrated , the more extensive use . In general, the radiation characteristics having pigment powder suppliers . Basically can be described as environmentally friendly products.
Second ; Long luminous powder , is made ; variety of rare earth materials through scientific formula baked at high temperature 1500 degrees. Having high temperature, acid , solvent , and so on.
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