IOTA PHPS, inorganic perhydropolysilazane, is a high-performance hydrophilic super hard stain-resistant nano-coating. Formulated with perhydropolysilazane as the main component and n-butyl ether as solvent, it is an inorganic coating material designed for high-end protection across multiple industries. The product is a colorless transparent liquid with 20% solid content, easy to apply. After curing, it forms SiOx inorganic film with ultra-high hardness, high light transmittance and outstanding adhesion.

Curing is achieved via hydrolysis of Si-N bonds. Two curing options are available: room-temperature curing takes more than 7 days; moisture curing at 90% humidity and 150℃ only needs 2 hours, compatible with various production processes. The cured film thickness exceeds 100 nm. After high-temperature curing, hardness reaches 8–10 GPa with pencil hardness up to 9H and elastic modulus of 100–130 GPa. Visible light transmittance is over 90%, and cross-cut adhesion reaches grade 0, so the film hardly peels off. The coating can withstand 800℃ in air, featuring excellent rust, alkali and salt water resistance against salt spray and alkaline media. Please note its resistance to 10% hydrochloric acid is limited, with a service life of about one month.

Benefiting from outstanding comprehensive protection, IOTA PHPS nano coating covers a wide range of applications. For construction, it serves as anti-graffiti coating to resist stains and vandalism. It provides long-term anti-corrosion protection for precious metals. In rail transit, it improves weather resistance of components. It acts as insulating layer for semiconductors and electronic circuits to guarantee stable device performance. It can also be applied on plastic packaging for gas barrier and waterproofing.

This inorganic nano coating integrates high hardness, high-temperature resistance, high transparency and strong adhesion. From civil construction to high-end electronics and rail transit, it delivers thin yet reliable inorganic protection for substrates, making it a preferred choice for industrial anti-corrosion, insulation and anti-stain protection.
room termperature curing polysilazane, pls check IOTA 9150. 
high termperature curing polysilazane, pls check IOTA 9108.