June 18, 2025, Tokyo - With the increasing demand for functional coatings in industries such as construction, automotive, and electronics, silicone coatings are upgrading from traditional protection to intelligent and multifunctional direction due to their weather resistance, hydrophobicity, and chemical stability. The global market size of organic silicon coatings will reach 7.2 billion US dollars in 2024, and is expected to exceed 8 billion US dollars by 2025, with self-cleaning and antibacterial coatings accounting for over 40%.


Self cleaning coating: dual effect of photocatalysis and superhydrophobicity
The "titanium dioxide siloxane composite coating" developed by a certain research team combines photocatalysis and superhydrophobic properties, which can decompose surface organic matter under ultraviolet irradiation. At the same time, the contact angle of water droplets reaches 165 °, achieving the effect of "rolling away dirt". The coating has been applied to the exterior wall of a skyscraper in Dubai. After one year of testing, the cleaning frequency has been reduced from once a month to once a quarter, and maintenance costs have been reduced by 70%.


Antibacterial coating: synergistic effect of silver ions and siloxane
Traditional antibacterial coatings have problems such as easy precipitation of silver ions and poor durability. A certain enterprise uses microencapsulation technology to encapsulate silver ions in a silicone network, which is only released when in contact with bacteria, with an antibacterial rate of 99.99%, and still maintains high efficiency after 500 wiping cycles. This coating has been used on the walls of hospital operating rooms, reducing the hospital's infection rate by 35%.


High temperature protection: Breakthrough in aircraft engine coating
Aircraft engine blades need to withstand high temperatures above 1500 ℃, and traditional ceramic coatings are prone to cracking and peeling. A new type of "tantalum silicide siloxane composite coating" has improved its thermal expansion coefficient matching degree to 98% through gradient structure design, and no peeling occurred after 1000 thermal cycles in simulated flight tests. This technology can extend blade life by 2-3 times and reduce engine maintenance costs.


Environmental challenge: transition from solvent based to water-based
Traditional silicone coatings contain a large amount of volatile organic compounds (VOCs), which do not meet environmental requirements. The "water-based siloxane lotion" launched by an enterprise uses water as the dispersion medium, the VOCs content is less than 50g/L, and the drying speed is 30% faster than that of solvent based products. At present, this product has a 15% market share in the Chinese architectural coatings market.