Hierarchy classification:

1. top of the aat hierarchies
2. Materials Facet
3. Materials (hierarchy name)
4. materials (substances)
5. [materials by function]
6. adhesive
7. [adhesive by form]

Anotations

Scope note:

A thermoplastic adhesive that is already present in a thin layer on the adherend which, by the application of heat and pressure, forms the bond. Distinguished from "hot-melt adhesive" which necessitates application of the adhesive in the molten state.