Photochromic pigment can change the color when it exposes itself to UV, Sunlight. The color will change back to original color when the UV, Sunlight disappear. 1) Color available: Red, yellow, blue, purple, orange Photochromic pigment: Under ultraviolet light or sunlight. Color change from white color or very light color to red, yellow, blue, pruple color. Once away ultraviolet light or sunlight it will raback its white color or very light color. This process can repeat again and agian. 2) Package: Drum or bag 3), USING DOSE: For solvent-base ink, paint 3-30% W/W For water-base ink, paint 3-30% W/W For plastic 0.2-5% W/W If interested, pls call directly to +86-15958136613 for Miss Glorica xu (24hours on service)
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