IOTA H21400 withstands extreme temperature of 1300-1500℃, suitable for bonding and sealing all heat-resistant substrates. It joins high-temperature alloys, structural ceramics and carbon composite components, and works as raw material for high-temperature anti-oxidation protective coatings. It maintains stable bonding force from room temperature to 1500℃, ideal for thermal equipment, high-temperature tooling and thermal protection parts. The two-component grey paste features easy application and simple curing process to boost production efficiency. Customizable packaging with 1-year shelf life in cool dark storage, widely applied in thermal industrial equipment, refractory components and high-temperature coating manufacturing.