There are many types of adhesives, which can be divided into only by chemical composition: (1) Inorganic adhesives: silicate, phosphate, sulfate (gypsum), borate (fusion glass), ceramics, zirconia , Alumina, low melting point metals (lead, tin), etc.;
Organic adhesive
A Natural organic adhesive: starch, protein (soy protein, casein, bone glue, fish glue, shellac, etc.), natural resin (rosin, gum, lignin, etc.), natural rubber and latex, asphalt, etc.
B Organic synthetic adhesive: thermosetting resin, thermoplastic resin, synthetic rubber, compound glue, etc.