Hengjiake Hydrated Alumina HA-109 is an alumina-based binder that does not contain calcium oxide and can undergo hydration reactions, used in various refractory materials such as precast components, low-cement castables, ultra-low cement castables, and cement-free castables.
The hydrated alumina HA-109 has the following characteristics:
Calcium oxide content is less than 0.1%.
Can improve the high-temperature performance of refractory materials, especially A1,0:-si0, series materials.