Hierarchy classification:

1. top of the aat hierarchies
2. Materials Facet
3. Materials (hierarchy name)
4. materials (substances)
5. [materials by function]
6. coating (material)
7. [coating by form]
8. paint (coating)
9. [paint by property]

Anotations

Scope note:

Paint coatings that have a characteristic intumescence when exposed to high heat. A foaming or bubbling layer forms in the paint layer that insulates the material beneath, protecting it from reaching a flash point. This type of paint may be based on silicone, casein, borax, polyvinyl chloride, urea formaldehyde or other substances.