Divided by curing mechanism, generally can be divided into the following four categories.
(1) air-drying type Dependent on the solvent evaporation or loss of moisture and curing, such as water glass, clay and so on.
(2) Water-curing type Curing by water as a curing agent, adding water to produce a chemical reaction, such as gypsum, cement and so on.
(3) hot melt type of inorganic hot melt adhesive, first heated above the melting point, and then bonding, cooling and curing, such as low melting point metal, low melting point glass, glass ceramics, sulfur yellow, etc..
(4) chemical reaction type by adding water other than the curing agent to produce a chemical reaction and curing, such as silicates, phosphates, colloidal alumina, dental cement.
Common types
Common inorganic adhesives such as cement, gypsum, water glass, lime, clay, etc. have been widely used in construction, modeling, casting, water conservancy, medical care, equipment installation, etc. In addition to this, the commonly used inorganic adhesives there are a number of inorganic salts (phosphate and silicate) type composed of low molecular compounds[1]