Sun Sensitive Color Changing Photochromic Pigment
Photochromic pigment is a specialty designed powder to change color when exposed to a UV light source, but reacts best to direct sunlight. White or colorless when not exposed to sunlight.
All of our photochromic pigments are encapsulated meaning they can be used to make photochromic paint, resin epoxy, inks, water based mediums, plastic, gels, acrylic and much more without becoming damaged or drying out the medium. Can appear transparent in a clear medium with a lower powder mixing ratio. Use photo chromatic pigments for a variety of applications! Screen print an invisible design onto a shirt that can only be seen on a bright sunny day! Mix yellow photochromic pigment with blue tinted paint to create a light blue paint that turns green when exposed to sunlight! Color combinations like these are endless with photochromic pigment!
Mixing ratios for photochromic pigments are largely a matter of customer preference. There is no baseline standard for mixing into various mediums. The ratios below are recommended starting points, but can always be altered to taste. Remember, the less pigment you add to your medium the more transparent it will appear. The more pigment you add the more opaque it will appear. Adding more pigment to a particular medium especially more than 50% may alter the way the medium performs, dries, or sets. It is always best to test a small amount in a controlled environment before mixing a large masterbatch.
Paint: 1% - 5%
Plastic Injection: 0.5% - 2%
Adhesives & Sealers: 2% - 5%