Documents in our library describe Duplex (Armstrong Cork) as “pipe insulation in 3-foot sections, single layer 1/2", 3/4", 1"; double layer to 1", 1-1/2", 2"; canvas jacket”.1 It was rated for temperatures up to 212 °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 Duplex (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 Duplex (Armstrong Cork) in the documents, in each document's own words.
Armstrong's Industrial Insulations (1951)
- Use: “hot or cold water service lines”, p. 681
- Temperature limit: “top temperature limit is 212° F.”, p. 681
- Form: “pipe insulation in 3-foot sections, single layer 1/2", 3/4", 1"; double layer to 1", 1-1/2", 2"; canvas jacket”, p. 681
- Ingredient: “outer wrapping of asbestos paper over saturated and creped felt”, p. 681
Sourcebook on Asbestos Diseases: Medical, Legal, and Engineering Aspects, Volume Two
- Description: “pipe covering” (as of 1953), p. 732
Kind of product
We list Duplex (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)
LT · 85% Magnesia · LK · Lk-20 · Armstrong LT Cork Coatings · Best Felt
Pipe covering and block insulation by other makers (270)
Thermobestos · Superex (Johns-Manville) · Careytemp (Philip Carey) · Kaylo (Owens-Corning) · Unibestos (Union Asbestos & Rubber Co.) · CS (Riva & Mariani) · Custom Molded 85% Magnesia (Mundet Cork) · D.E. Block (Eagle-Picher) · Defendex (Philip Carey) · Detrick (Combustion Engineering) · Dri-mag (Crown Cork & Seal) · Dual Careytemp (Philip Carey) · Duplex (Keasbey & Mattison) · Durant (Keene/Ehret) · Durestos (maker not given) · Durocell (Ehret Magnesia Manufacturing Co.) · Enduro (Ehret Magnesia Manufacturing Co.) · Enduro (Keene) · Enduro Block (Baldwin-Ehret-Hill) · Epitherm 1200 (Eagle-Picher) · and 250 more: all pipe covering and block insulation
See also
- 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
- Armstrong's Industrial Insulations (January 1, 1951), p. 68.
- Sourcebook on Asbestos Diseases: Medical, Legal, and Engineering Aspects, Volume Two (1986), p. 73. Not yet published in our library.
Cite this page
“Duplex (Armstrong Cork).” AsbestosClaims.Law Library. https://asbestosclaims.law/library/products/armstrong-cork-duplex.
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