IOTA H21000 silazane adhesive stands out for extreme heat resistance, sustaining long-term service at 1000–1100°C without debonding unlike common organic adhesives. Its solvent-free eco formula firmly adheres to metals, ceramics and composite materials with stable bonding strength across wide temperature ranges. The gray-black fluid has moderate fluidity, suitable for structural bonding/sealing as well as high-temperature protective coatings. Dense cured structure resists chalking and cracking under intense heat, widely used for industrial kilns, heat-treatment parts and special composite assembly. Flexible customizable packaging for easy storage. Ventilation is required during operation due to released ammonia, offering durable and reliable sealing solutions for ultra-high-temperature working conditions.