Enduro was a pipe covering and block cement that later came under Keene.1,2 Keene's report published by the EPA in 1990 says "Enduro Pipe Covering and Block Cement" was produced from 1924 to 1955 by Ehret.1 Its dry formula, Keene says, was sold as Enduro Cement.1 It says Enduro consisted of specially selected pre-calcined diatomaceous earth, clays and asbestos fibers.1 Keene says Enduro "is believed to have contained" a blend of 1.1% No. 373 chrysotile asbestos and 8.7% amosite fiber.1
The Navy's qualified products list, QPL-2781, listed ENDURO under the Ehret Magnesia Manufacturing Company of Valley Forge, Pennsylvania, with its plant there, in its December 1951 edition.3 The last edition read that lists it, as Enduro Type I, is dated February 1959.3
An insurance company's 1981 list of asbestos products, compiled from other companies' answers in lawsuits, lists Enduro pipecover, block and cement under Keene, with Baldwin-Ehret-Hill in its note column and 15 in the column read as percent asbestos.2 It gives no years for it.2
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What each document says
Every statement about Enduro (Keene) in the documents, in each document's own words.
Asbestos; Publication of Identifying Information (1990)
- Made from: “produced 1924 to 1955 by Ehret”, said by Keene Corporation, as recorded by U.S. EPA, Federal Register 55 FR (Feb. 13, 1990), p. 111
- Made until: “produced 1924 to 1955 by Ehret”, said by Keene Corporation, as recorded by U.S. EPA, Federal Register 55 FR (Feb. 13, 1990), p. 111
- Fiber grade: “No. 373 chrysotile asbestos”, said by Keene Corporation, as recorded by U.S. EPA, Federal Register 55 FR (Feb. 13, 1990), p. 111
- Ingredient: “specially selected pre-calcined diatomaceous earth, clays, and asbestos fibers”, said by Keene Corporation, as recorded by U.S. EPA, Federal Register 55 FR (Feb. 13, 1990), p. 111
- Form: “Pipe Covering and Block Cement; the dry formula ... was sold as Enduro Cement”, said by Keene Corporation, as recorded by U.S. EPA, Federal Register 55 FR (Feb. 13, 1990), p. 111
- Asbestos fiber: “1.1% No. 373 chrysotile asbestos”, said by Keene Corporation, as recorded by U.S. EPA, Federal Register 55 FR (Feb. 13, 1990), p. 111
- Asbestos fiber: “8.7% amosite fiber”, said by Keene Corporation, as recorded by U.S. EPA, Federal Register 55 FR (Feb. 13, 1990), p. 111
The Travelers Insurance Company's Product Information Booklet for Its Asbestos Seminar (1980–1981)
Military Qualified Products List (1951–1995)
- Description: “qualified under QPL-2781 as ENDURO, Grade III, Class e (QPL-2781-1)” (as of 1951-12-03), p. 23
- Made at: “Plant: Valley Forge, Pa.” (as of 1951-12-03) (the plant: Valley Forge, Pennsylvania), p. 23
- Description: “qualified under QPL-2781 as Enduro, Grade III, Class e, Type I (QPL-2781-19)” (as of 1959-02-25), p. 553
Kind of product
We list Enduro (Keene) with pipe covering and block insulation and insulating cement and coatings, from how the documents describe its form. Those pages explain how such products exposed workers.
Trades that worked with products like it: Insulators and Insulation Workers, Pipefitters and Plumbers, Boilermakers.
Other pipe covering and block insulation by Keene (4)
Pipe covering and block insulation by other makers (272)
Thermobestos · Superex (Johns-Manville) · Careytemp (Philip Carey) · Kaylo (Owens-Corning) · Unibestos (Union Asbestos & Rubber Co.) · Dual Careytemp (Philip Carey) · Duplex (Armstrong Cork) · Duplex (Keasbey & Mattison) · Durant (Keene/Ehret) · Durestos (maker not given) · Durocell (Ehret Magnesia Manufacturing Co.) · Enduro (Ehret Magnesia Manufacturing Co.) · Enduro Block (Baldwin-Ehret-Hill) · Epitherm 1200 (Eagle-Picher) · Equality (Johns-Manville) · Eureka Covering (Johns-Manville) · Excel (Philip Carey) · Express Covering (Johns-Manville) · Featherweight (Keasbey & Mattison) · FI Cement (Fibreboard) · and 252 more: all pipe covering and block insulation
Other insulating cement and coatings by Keene (6)
Insulating cement and coatings by other makers (318)
Thermobestos · Superex (Johns-Manville) · Asbestile (Johns-Manville) · 85 Magnesia (Johns-Manville) · Prasco (Fibreboard) · Duriseal (Combustion Engineering) · Durocel (Keene/Ehret) · Easy Seal (Combustion Engineering) · Economy 250 (National Gypsum) · Elastigum Roof (Celotex) · Emulsified Asphalt (Coopers Creek) · Emulsion 330, Emulsion 331 (Insul-Coustic) · FC II (Bigelow-Liptak) · Fenco (Owens-Corning) · FI (Fibreboard) · Fibercoat (Baldwin-Ehret-Hill) · Fibre Emulsion (National Cork) · Fibrekote (Keene/Ehret) · Fibrofil (Johns-Manville) · Fibrous Adhesive (Celotex) · and 298 more: all insulating cement and coatings
See also
- Keene: the company's history, documents, people, products and plants
- Keene on our products page: what the documents say about the company's asbestos products, with sources
References
- 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 30, 1981), p. 4.
- Military Qualified Products List (1951–1995) (December 3, 1951), pp. 2, 55.
Mentioned on this site
Cite this page
“Enduro (Keene).” AsbestosClaims.Law Library. https://asbestosclaims.law/library/products/keene-enduro.
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