SILZ-HT21 is a high-temperature anti-corrosion nano-ceramic coating formulated with polysilazane as the primary film-forming binder. It is compounded with advanced inorganic fillers such as sericite mica, chromium black pigment, phosphates, and inorganic silicon powders. After curing, the coating forms a dense, hard, and waterproof ceramic-like layer with excellent resistance to acids, salt spray, aging, and harsh environments.
The cured coating exhibits outstanding thermal stability and can withstand continuous service at temperatures up to 600 °C, making it suitable for long-term protection of metal substrates under extreme thermal and corrosive conditions.
As a novel organic–inorganic hybrid high-temperature coating system, SILZ-HT21 integrates high-temperature polymer materials, anti-corrosion pigments, ultrafine functional powders, and polymer dispersion technology. After curing, filler particles are densely packed and chemically bonded to the polysilazane matrix, resulting in a coating with uniform appearance, moderate gloss, and minimal macroscopic defects.
The formulation primarily utilizes ionic compounds that form covalent bonds with the substrate during curing, significantly enhancing mechanical strength and adhesion. Special acid- and alkali-resistant raw materials provide excellent chemical stability, while lamellar and rod-like filler structures improve UV resistance and crack resistance.
