In the fields of construction, transportation, electronics, and packaging, surface contamination, corrosion, and barrier failure remain core pain points affecting product lifespan and performance. Traditional organic coatings age easily and lack wear resistance, while pure inorganic coatings suffer from complex application and poor adhesion. Today, we present a revolutionary solution rooted in pure inorganic chemistry: Perhydropolysilazane Liquid Coating Material IOTA PHPS (Hydrophilic Super Hard Stain Resistant Nano-Coating Materials) . It integrates the exceptional performance of inorganic silica with the convenience of liquid application, offering super-hydrophilicity, outstanding stain resistance, high hardness, and strong adhesion for your substrates.

Inorganic Essence, Low-Temperature Ceramic Formation
At the core of IOTA PHPS is Perhydropolysilazane (PHPS) , a unique inorganic polymer. Supplied as a colorless transparent liquid with 20% solid content in n-butyl ether, it has a density of 0.82-0.84 g/ml and suitable viscosity for easy application by spraying, dipping, or brushing. Under mild conditions (7 days at room temperature or 2 hours at 150°C with 90% humidity), PHPS undergoes hydrolysis and polycondensation via Si-N bonds, in-situ converting into a pure, dense, inorganic silicon oxide (SiO_x) nano-coating with a cured density of 1.6-2.0 g/cm³, forming a true "glass-like" protective layer. This conversion requires no high-temperature sintering, making it suitable for heat-sensitive substrates like glass, metals, plastics, and semiconductor materials.

Super-Hydrophilic Self-Cleaning, Effortless Renewal
The converted SiO_x coating possesses intrinsic super-hydrophilicity. Water spreads completely into a uniform film, easily penetrating and lifting dust, oil, graffiti, and other contaminants, which are then carried away by the flow. This achieves genuine “rain self-cleaning, clear-water rinsing.” This feature is particularly outstanding in anti-graffiti building facades, rail vehicle exteriors, and precious metal anti-corrosion—stains hardly adhere, drastically reducing cleaning and maintenance costs.

High Hardness, Scratch Resistance, Long-Term Protection
Coating performance varies with curing conditions: high-temperature curing yields pencil hardness up to 9H (China) or 6H (Mitsubishi) , hardness of 8-10 GPa, and elastic modulus of 100-130 GPa, providing excellent wear and scratch resistance; ammonia curing achieves 3 GPa/60 GPa. The coating exhibits >90% visible light transmittance and cross-cut adhesion of Class 0. It withstands temperatures up to 800°C (in air) and offers strong rust prevention, alkali resistance, and brine resistance (about one month resistance to 10% HCl). In precision fields such as semiconductor insulation layers, electronic circuit protection, and plastic packaging gas/water barrier, PHPS’s pure inorganic nature eliminates the aging and outgassing issues of organic materials, enhancing device reliability and packaging shelf life.

From self-cleaning architectural facades, anti-graffiti high-speed trains, and anti-fingerprint coatings for jewelry, to chip passivation layers, flexible electronic barrier films, and high-barrier food packaging coatings—IOTA PHPS endows surfaces with the dual gifts of “self-cleaning” and “super protection” through inorganic purity and intelligence. Choosing it means harnessing the primal power of chemistry to make cleanliness and durability a permanent norm.
       Room termperature curing polysilazane, pls check IOTA 9150, IOTA 9150K.       
       High termperature curing polysilazane, pls check IOTA 9108, IOTA 9118.