Documents in our library describe Imperial Pipe Covering (Ruberoid) as “pipe covering wound on a mandrel to the desired thickness and canvas-covered”.1 They give it as made 1936–1960.1 It was rated for temperatures up to 700 °F.1 Where the documents differ, each is listed below with its source.
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What each document says
Every statement about Imperial Pipe Covering (Ruberoid) in the documents, in each document's own words.
Asbestos; Publication of Identifying Information (1990)
- Made from: “manufactured from at least 1936 to approximately 1960”, said by GAF Building Materials Corporation, as recorded by U.S. EPA, Federal Register 55 FR (Feb. 13, 1990), p. 81
- Made until: “to approximately 1960”, said by GAF Building Materials Corporation, as recorded by U.S. EPA, Federal Register 55 FR (Feb. 13, 1990), p. 81
- Description: “Imperial paper consisted of two plies of flat asbestos paper passed through an indenting roll, giving a waffle-like appearance with closely spaced square indentations”, said by GAF Building Materials Corporation, as recorded by U.S. EPA, Federal Register 55 FR (Feb. 13, 1990), p. 81
- Form: “pipe covering wound on a mandrel to the desired thickness and canvas-covered”, said by GAF Building Materials Corporation, as recorded by U.S. EPA, Federal Register 55 FR (Feb. 13, 1990), p. 81
- Temperature limit: “It had a temperature limit of 500° to 700 °F.”, said by GAF Building Materials Corporation, as recorded by U.S. EPA, Federal Register 55 FR (Feb. 13, 1990), p. 81
Asbestos Magazine, 1931, May 1931
- Description: “Sectional Pipe Coverings: Imperial Brand (under Asbestos Pipe Coverings and Boiler Insulation)”, p. 582
Sourcebook on Asbestos Diseases: Medical, Legal, and Engineering Aspects, Volume Two
- Description: “laminated asbestos paper” (as of 1953), p. 853
Kind of product
We list Imperial Pipe Covering (Ruberoid) 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, Boilermakers.
Other pipe covering and block insulation by Ruberoid (5)
Pipe covering and block insulation by other makers (271)
Thermobestos · Superex (Johns-Manville) · Careytemp (Philip Carey) · Kaylo (Owens-Corning) · Unibestos (Union Asbestos & Rubber Co.) · Hightemp #12 (Philip Carey) · Hightemp #15 (Philip Carey) · HT (Forty-Eight Insulations) · Hy Temp (Keasbey & Mattison) · Hy-temp (Nicolet) · Hylo (Eagle-Picher) · Imperial (GAF) · Impervo (Philip Carey) · Indented (Johns-Manville) · Insulation Seal 820 (Philip Carey) · Insutape (Unarco) · Insutape (Union Asbestos & Rubber Co.) · Insutube (Unarco) · Johns-Manville Jm (Johns-Manville) · Johns-Manville Transite Asbestos Wood (Johns-Manville) · and 251 more: all pipe covering and block insulation
See also
- Ruberoid: the company's history, documents, people, products and plants
- Ruberoid 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. 8.
- Asbestos Magazine, 1931, May 1931 (May 1, 1931), p. 58.
- Sourcebook on Asbestos Diseases: Medical, Legal, and Engineering Aspects, Volume Two (1986), p. 85. Not yet published in our library.
Cite this page
“Imperial Pipe Covering (Ruberoid).” AsbestosClaims.Law Library. https://asbestosclaims.law/library/products/ruberoid-imperial-pipe-covering.
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