Concrete use Window/Glass materials
Concrete use 
Outside use High school
Concrete use Sewage-disposal plant
Outside use Nuclear laboratory
Outside use External wall
Following photo is the building surface condition after 10 years.
White tile surface is non-stain condition
...
Indoor use Hospital
Indoor use Metro vehicle
Bathroom Room for odor eliminating
Outside use Glass house
Outline
Cleaning
Before application
After application
After application