Adding nano-materials, such as nano-TiO2, to various types of coatings can produce bactericidal, anti-fouling, deodorant, and self-cleaning antibacterial and anti-fouling coatings that are widely used in hospital and home interior wall finishing. UV protection coatings can be manufactured and used in places where UV shielding is required, such as coating on parasol fabrics to make UV protection parasols. Absorbing stealth paints can also be manufactured for use in defense industries such as stealth aircraft and stealth warships, as well as other applications requiring electromagnetic shielding. Adding nano-SiO2 in the coating can double the anti-aging performance, finish and strength of the coating, and the quality and grade of the coating are greatly upgraded. It is said that the scrub resistance of nanomaterials modified exterior wall coatings can be increased from the original 1000 times to more than 10,000 times, and the aging time is extended by more than 2 times. Nano ZnO is added to automotive metal flash topcoats to create special paints.
At present, nanomaterials are moving from the basic research stage to the direction of industrialization. Some polymer nanocomposites have been commercialized. The German Ministry of Science and Technology has analyzed and predicted the potential of nanomaterials and future technology markets. It is estimated that the market capacity of nanostructured devices after 2000 will be approximately USD 637.5 billion, and the market capacity of nanopowders, nanocomposite ceramics and other composite materials will be 5457. Billion US dollars, the market capacity of nano-material thin-film devices is approximately US$34 billion, and the market capacity of nanotechnology evaluation measurement means is US$2.72 billion. It can be considered that nano-materials will become the emerging mainstream industry in the 21st century.