Photochromic Ink & Pigments – UV Light Sensitive
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Photochromic Ink & Pigments – UV Light Sensitive
Permanent change UVC Light Indicating Labels
Water-Based Inks change color when exposed to sun or black light UV.
Three color kit - pigments react to UV rays from sun & black light.
Colorless to Color when exposed to UV light
UV Light Activated Thermometer Stickers, 30 Paper Label Stickers Per Sheet - Sticker size: 1" x 2-5/8"