High alumina binders are special cements that contain very high percentage of alumina (70-80%). These cements also contain high purity hydraulic bonding agents that help them to give controlled setting times.  These cements also have very high compressive strength. These cements are used in various industries in applications with temperatures going as high as 1800 degrees Celsius. Galaxy Enterprise manufactures many different types of high alumina binders. One of these is high alumina calundum. This is a binder that can be used as an ideal binder for all types of castable refractories. It has a very low water mixing requirement and high consistency.