Documents in our library describe 85% Magnesia (Armstrong Cork) as “block and pipe covering”.1 It was rated for temperatures up to 600 °F.1 Where the documents differ, each is listed below with its source.
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Asbestos claims
If you or a family member worked with or around 85% Magnesia (Armstrong Cork) and later developed mesothelioma or another asbestos disease, a claim may be paid by the Armstrong World Industries asbestos trust. Free case review.
What each document says
Every statement about 85% Magnesia (Armstrong Cork) in the documents, in each document's own words.
Union Carbide Chemicals Company: Thermal Insulation and Accessories Manual (1962)
- Temperature limit: “Atmos to 600”, p. 801
- Description: “Composed of not less than 85% by volume of hydrated magnesium carbonate and the balance of asbestos fibers. Relatively soft. Absorbant, will soften when wet. Rigid.”, p. 801
- Asbestos content: “Magnesium Carbonate and Asbestos”, p. 801
- Form: “Block and Pipe Covering”, p. 801
Armstrong's Industrial Insulations (1951)
- Description: “furnishes and installs the 85% Magnesia Pipe Covering and Block ... of the Keasbey and Mattison Company”, p. 572
Kind of product
We list 85% Magnesia (Armstrong Cork) with pipe covering and block insulation, from how the documents describe its form. 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 Armstrong Cork (6)
Pipe covering and block insulation by other makers (270)
Thermobestos · Superex (Johns-Manville) · Careytemp (Philip Carey) · Kaylo (Owens-Corning) · Unibestos (Union Asbestos & Rubber Co.) · 7M (Crown Cork & Seal) · 85 Magnesia (Crown Cork & Seal) · 85 Magnesia (Fibreboard) · 85 Magnesia (Gaf/Ruberoid) · 85 Magnesia (Johns-Manville) · 85 Magnesia (Keasbey & Mattison) · 85 Magnesia (Philip Carey) · 85% Magnesia (Eagle-Picher) · 85% Magnesia (Pabco Products) · Acoa (Asbestos Corp. of America) · Air Cell (GAF) · Air Cell (Mundet Cork) · Air-Cell (Johns-Manville) · Aircel (Nicolet) · Aircel (Philip Carey) · and 250 more: all pipe covering and block insulation
See also
- 85% Magnesia in the Lexicon
- Armstrong Cork: the company's history, documents, people, products and plants
- Armstrong Cork on our products page: what the documents say about the company's asbestos products, with sources
References
- Union Carbide Chemicals Company: Thermal Insulation and Accessories Manual (October 1, 1962), p. 80.
- Armstrong's Industrial Insulations (1951), p. 57.
Cite this page
“85% Magnesia (Armstrong Cork).” AsbestosClaims.Law Library. https://asbestosclaims.law/library/products/armstrong-cork-85-magnesia.
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