In 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.

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 (20% solution) and suitable viscosity for 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 (SiOₓ) nano-coating with 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 SiOₓ coating possesses intrinsic super-hydrophilicity. Water spreads completely into a uniform film, easily lifting dust, oil, graffiti, and other contaminants, which are carried away by water flow—achieving true “rain self-cleaning, clear-water rinsing.” This makes it outstanding in anti-graffiti building facades, rail vehicle exteriors, and precious metal anti-corrosion, drastically reducing cleaning and maintenance costs.

High Hardness, Scratch Resistance, Long-Term Protection
Performance varies with curing: 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; ammonia curing achieves 3 GPa/60 GPa. Visible light transmittance >90%, cross-cut adhesion Class 0. It withstands 800°C in air, with strong rust, alkali, and brine resistance (about one month to 10% HCl). In semiconductor insulation layers, electronic circuit protection, and plastic packaging gas/water barrier, PHPS’s pure inorganic nature eliminates aging and outgassing issues, enhancing device reliability and packaging shelf life.

From self-cleaning architectural facades, anti-graffiti high-speed trains, and anti-fingerprint jewelry coatings, 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.” Choose it to make cleanliness and durability a permanent norm.

room termperature curing polysilazane, pls check IOTA 9150. 
high termperature curing polysilazane, pls check IOTA 9108.