Documents in our library describe Thermasil (Ehret Magnesia Manufacturing Co.) as “pipe & block insulation”.1 They put its asbestos content at 10% to 11%.2,3 The asbestos named is amosite. It was rated for temperatures up to 1200 °F.4 Where the documents differ, each is listed below with its source.
You don't need the product names or old records. No fee unless we recover compensation for your family.
What each document says
Every statement about Thermasil (Ehret Magnesia Manufacturing Co.) in the documents, in each document's own words.
Sourcebook on Asbestos Diseases: Medical, Legal, and Engineering Aspects, Volume Two
- Description: “pipe & block insulation” (as of 1953), p. 1161
Asbestos; Publication of Identifying Information (1990)
- Asbestos content: “approximately 10% amosite asbestos fiber from 1956 to February 1969”, said by Keene Corporation, as recorded by U.S. EPA, Federal Register 55 FR (Feb. 13, 1990), p. 112
- Change: “reduced to approximately 8.6% until 1970, when the amount was further reduced to 2%. In November 1972, all remaining amounts of asbestos fiber were removed”, said by Keene Corporation, as recorded by U.S. EPA, Federal Register 55 FR (Feb. 13, 1990), p. 112
- Asbestos fiber: “a lightweight, molded, hydrous calcium silicate insulation, manufactured from a blend of special inorganic ingredients, reinforced with amosite asbestos fibers”, said by Keene Corporation, as recorded by U.S. EPA, Federal Register 55 FR (Feb. 13, 1990), p. 112
The Travelers Insurance Company's Product Information Booklet for Its Asbestos Seminar (1980–1981)
- Asbestos content: “11”, p. 163
Asbestos Magazine, 1956, December 1956
- Temperature limit: “Pipe and block insulation for temperatures up to 1200 F”, p. 24
Military Qualified Products List (1951–1995)
- Made at: “Ehret Magnesia Mfg. Co. Valley Forge, Pa. Plant: Same address” (as of 1959-02-25), p. 545
Asbestos Magazine, 1965, July 1965
- Ingredient: “reinforced with selected long asbestos fibers”, said by Baldwin-Ehret-Hill, Inc., as recorded by Asbestos (magazine), p. 166
Kind of product
We list Thermasil (Ehret Magnesia Manufacturing Co.) with pipe covering and block insulation, from how the documents describe it. That page explains how such products exposed workers.
Trades that worked with products like it: Insulators and Insulation Workers, Pipefitters and Plumbers.
Other pipe covering and block insulation by Ehret Magnesia Manufacturing Co. (3)
Pipe covering and block insulation by other makers (273)
Thermobestos · Superex (Johns-Manville) · Careytemp (Philip Carey) · Kaylo (Owens-Corning) · Unibestos (Union Asbestos & Rubber Co.) · Temp-check (Philip Carey) · Tempcheck (Philip Carey) · Therm-o-bestos (Johns-Manville) · Therm-O-Flake (Illinois Clay Products) · Thermalite (Keene) · Thermalite 85% Magnesia (Baldwin-Ehret-Hill) · Thermasil (Baldwin-Ehret-Hill) · Thermasil (Keene) · Thermo Fire Felt (Johns-Manville) · Thermobestos pipe covering · Thermowrap (Johns-Manville) · Train Pipe Covering (Johns-Manville) · Tri-calite (Crown Cork & Seal) · Trica-mag (Crown Cork & Seal) · Tricalite (Mundet Cork) · and 253 more: all pipe covering and block insulation
See also
- Ehret Magnesia Manufacturing Co.: the company's history, documents, people, products and plants
References
- Sourcebook on Asbestos Diseases: Medical, Legal, and Engineering Aspects, Volume Two (1986), p. 116. Not yet published in our library.
- Asbestos; Publication of Identifying Information (February 13, 1990), p. 11.
- The Travelers Insurance Company's Product Information Booklet for Its Asbestos Seminar (1980–1981) (April 1, 1981), p. 16.
- Asbestos Magazine, 1956, December 1956 (December 1, 1956), p. 2.
- Military Qualified Products List (1951–1995) (February 25, 1959), p. 54.
- Asbestos Magazine, 1965, July 1965 (July 1, 1965), p. 16.
Cite this page
“Thermasil (Ehret Magnesia Manufacturing Co.).” AsbestosClaims.Law Library. https://asbestosclaims.law/library/products/ehret-magnesia-manufacturing-co-thermasil.
ACL Doc numbers and their short links never change. See how to cite the Library.
Talk with an asbestos lawyer
Start with what you remember, and we'll take it from there.
This page is provided for general informational purposes and does not constitute legal advice. Every asbestos case turns on its own facts, exposure history, diagnosis, deadlines, available evidence, and applicable law. Reviewing this page does not create an attorney-client relationship. For advice about your specific situation, call 833-4-ASBESTOS for a free case review.