Giant-nano material technology Co., Ltd.


Giant-nano material technology Co., Ltd.

Photocatalyst coating foaming ceramics


Photocatalyst depends on light energy to achieve disinfection, sterilization, and self-cleaning effect. Light can effectively filter out and reflect through the product even for short wavelength light source.
Traditional photocatalyst coating with organic binder should be short life time, because photocatalyst decompose organic binder. GiantNano photocatalyst coating with inorganic binder on foaming ceramics is stable under UV light exposure, even UVC and UVB light.
GiantNano Photocatalyst coating foaming ceramics can decompose total volatile organic compound and harmful gases, such as formaldehyde, methanol, NOx, bacteria, virus….


  1. High decomposition rate
  2. long lasting
  3. easy to clean
  4. Porosity of foaming can be customized


Item Result
Appearance Light yellow
Porosity of foaming(PPI) 10~30
Density (g/cm2) 0.9~1.5
Thickness of foaming ceramics (mm) 3~10
Thickness of photocatalyst coating (um) 20~100

Process condition

Item PSG Mark
Solution temperature(°C) 23~27  
Coating method Spray/Roller Dry film thickness >100nm
Higher dry film thickness, higher UV-cut percentage
Coating environment-temperature (°C) 23~27  
Coating environment-humidity (%) 50~80  
Curing temperature (°C) 300~600 °C 30min  


Item PSB-OX PSG-PX PSG-HX Test method reference
Adhesion 5B (Under 5 days sunlig ht) 5B 5B 3M scotch 600 tape ASTM3359
water contact angle <20° <10° <20° Goniometer  
Pencil hardness 5H (Under 5 days sunlight) 7H >8H 1kg ASTM3363
Gloss 60° >170 >170 >170 Gloss meter  
Sterilization >80% >80% >80% FIRDI(visible light) TN-002
Sterilization >99.99% >99.99% >99.99% NCKU (UV light) TN-002

Reliability Test Summary

Test item Test condition Test result Standard condition Standard reference
Damp heat 2000 hours △T<0.1% 1000 hours IEC 61215
Thermal cycling 400 cycles △T<0.6% 200 cycles IEC 61215
Humidity freeze 20 cycles △T<0.3% 10 cycles IEC 61215
UV 60 kWh △T<0.3% 15 kWh IEC 61215
Salt mist 96 hours △T<0.6% 96 hours IEC 61701
Acid Resistance 1M HCl △T<0.3% 1M HCl