What are the recommended proportions of photochromic powder added to coatings, inks, and plastic products?

Photochromic powder can have many applications and can be used in various industries. Different industries require different proportions of thermochromic powder. How is the amount of photochromic powder added to coatings, inks, and plastics controlled?
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Jeff.Chen

Bachelor's Degree in Materials Science and Engineering, Hubei University of Technology

Coatings: It is recommended to add photochromic powders at a proportion of 6-20%, suitable for various surface coating products, including PMMA spray paint, ABS spray paint, PVC spray paint, water-based spray paint, etc.

Inks: It is recommended to add photochromic pigment powders at a proportion of 15-30%, suitable for printing on various materials, including fabric, paper, synthetic film, glass, etc.

Plastic Products: It is recommended to add photochromic powders at a proportion of around 0.8%, suitable for various plastic materials in injection molding, extrusion molding, and products with high color concentration, such as photochromic PE masterbatch and photochromic PMMA masterbatch.

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