H&S Historical Evidence Library
Refractory & Insulating Cements
Start with the work and material you remember, then test the history against period-specific records. This page organizes a research path; it does not establish what was present at a particular workplace.
Memory clue: Furnace, boiler, kiln or high-temperature repair; cement-like insulating or refractory material
Work activities worth reconstructing
- Mixing or applying insulating cement
- Removing old refractory or cement
- Furnace/boiler repair
- Cleanup after high-temperature maintenance
Places, systems or equipment that can narrow the history
Boilers
Furnaces
Kilns
High-temperature piping
Time changes the answer
EPA historical sources identify asbestos in some insulation cements and other heat-resistant building/industrial materials. Product identity and date remain separate evidence questions.
Authoritative sources for this research path
- EPA — Learn About Asbestos
- EPA — List of Uses Covered under April 2019 Final Rule
- EPA — Final Asbestos Part 2 Risk Evaluation
These sources support the generic historical relationship. They do not establish that a particular material was present at a specific workplace or encountered by a particular person.