Photochromic Clear Liquid

Photochromic Clear Liquid

Photochromic Clear Liquid enables dispersion of photochromic pigments and film formation on lens substrates. It is mainly composed of polyurethane materials and features fast curing performance. Compatible with common spiropyran and spirooxazine photochromic pigments.

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Technical Parameters 

Status Test Item Units Typical Value Test Condition / Standard
Liquid State Appearance Colorless Translucent Liquid Visual Inspection
Solid Content % 30 Moisture Analyzer
150℃*10mins
Viscosity mPa·s <50 Brookfield DVNXRVCP
Recommended Processing Procedure 1. Fully disperse and dissolve photochromic pigments in the selected solvent, then add proportionally into base binder and stir sufficiently for 30 min. (Note: High-shear stirring and ultrasonic treatment are prohibited.)
2. Thoroughly clean lenses before spin coating to guarantee clean and smooth surface.
3. After coating application, thermally cure the product in an oven at 80℃, adjust heating time (15–30 min) based on coating thickness.

Product Features 

  • Fast curing speed
  • Wide compatibility with photochromic pigments
  • Water-based & eco-friendly

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We will respond to your inquiries via email within 24 hours.