What materials are ( or can be ) used for adhesives? ( general families)

– What materials are ( or can be ) used for adhesives? ( general families)
– What kind of “triggers” are used to cause the “curing” of some polymer adhesives?
– What geometries are “best” for adhesively bonded joints ? What are their names, what do they look like, Why are they “best”?
– When should you choose a material for a new product?
– What criteria do you need to consider in material selection?
– How often should you review the materials and processes for an existing product?