Hierarchy classification:

1. top of the aat hierarchies
2. Materials Facet
3. Materials (hierarchy name)
4. materials (substances)
5. [materials by composition]
6. inorganic material
7. cement (construction material)
8. [cement by composition or origin]

Anotations

Scope note:

A cement of clay or other tenacious infusible substance, typically with additions of sulfur, metallic oxides, silica, or carbon; it is used for high-temperature coatings or coverings and for sealing seams and joints.