Photochromic materials change reversibly colour with changes in light intensity. Usually, they are colourless in indoor , and when sunlight or ultraviolet radiation is applied on molecular structure of the material it will exhibit colour. When the relevant light source is removed then the colour will disappears and it retunes to its original color .
Changes from one colour to another colour are possible by mixing photochromic colours with base colours. They are used in paints, inks, and mixed to mould or casting materials for different applications.
[Colors available]:
RED,YELLOW,BLUE,PURPLE ,SKY-BLUE,ORANGE
[Health]: Photochromic compounds pass food container and packaging standards, not contain toxic substances.
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