C Millboard was a Johns-Manville asbestos millboard, made in sheets.1,2 An insurance company's 1981 list of asbestos products, compiled from other companies' answers in lawsuits, gives it as made from 1918 to 1981; 1981 is the list's own year, so it may still have been made then.1
A 1990 EPA notice that published what Manville reported names "C" first in a group of asbestos millboards, and gives its figures only for the group as a whole.2 For that group it says production ran from 1878 to 1980.2 It says the millboards contained 65 to 75% asbestos fibers, with 15 to 25% clay and lime, 2 to 8% starch and 2 to 5% sodium silicate, and came as sheets or board from 1/32 inch to half an inch thick.2
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Asbestos claims
If you or a family member worked with or around C Millboard (Johns-Manville) and later developed mesothelioma or another asbestos disease, a claim may be paid by the Manville Personal Injury Settlement Trust. Free case review.
What each document says
Every statement about C Millboard (Johns-Manville) in the documents, in each document's own words.
The Travelers Insurance Company's Product Information Booklet for Its Asbestos Seminar (1980–1981)
Asbestos; Publication of Identifying Information (1990)
- Made from: “produced 1878 to 1980”, said by Manville Corporation, as recorded by U.S. EPA, Federal Register 55 FR (Feb. 13, 1990), p. 142
- Made until: “produced 1878 to 1980”, said by Manville Corporation, as recorded by U.S. EPA, Federal Register 55 FR (Feb. 13, 1990), p. 142
- Description: “sheets or board furnished in thicknesses 1/32" to ½"”, said by Manville Corporation, as recorded by U.S. EPA, Federal Register 55 FR (Feb. 13, 1990), p. 142
- Ingredient: “clay and lime, 15 to 25%; starch, 2 to 8%; sodium silicate, 2 to 5%”, said by Manville Corporation, as recorded by U.S. EPA, Federal Register 55 FR (Feb. 13, 1990), p. 142
- Asbestos content: “asbestos fibers, 65 to 75%”, said by Manville Corporation, as recorded by U.S. EPA, Federal Register 55 FR (Feb. 13, 1990), p. 142
Manville Fund's Answers to Interrogatories in Gunn v. Celotex (1989)
- Made from: “Date Manufactured: 1918”, p. 1073
- Warning label: “Date Labeled: 1970”, p. 1073
- Form: “Sheet”, p. 1073
- Made at: “Manville Plant, Manville, New Jersey (1913 through 1985): Millboard C” (at Manville) (the plant: Manville, New Jersey), p. 633
- Asbestos content: “60.2 - 67.6 % fiber by weight”, p. 1073
- Made until: “Date Discontinued: 1980”, p. 1073
- Asbestos fiber: “Chrysotile”, p. 1073
- Asbestos content: “asbestos containing”, p. 633
Johns-Manville Material Safety Data Sheet for C MILLBOARD (1978)
Manville Fund's Responses to Plaintiffs' Interrogatories in Moore v. H.K. Porter (1990)
- Made at: “Waukegan Plant (1922 to 1985): Millboard Type C” (at Waukegan) (the plant: Waukegan, Illinois), p. 285
- Asbestos content: “asbestos containing”, p. 235
- Made at: “Manville Plant (1913 to 1985): Millboard C” (at Manville) (the plant: Manville, New Jersey), p. 235
Kind of product
We list C Millboard (Johns-Manville) with asbestos-cement pipe, board and sheet, from how the documents describe its form. That page explains how such products exposed workers.
Trades that worked with products like it: Carpenters and Construction Workers.
Other asbestos-cement pipe, board and sheet by Johns-Manville (119)
Flexboard · Thermobestos · Min-k · Asbestocel · Metal-on · Asbestos Fire Felt Locomotive Lagging · Asbestos Millboard · Asbestos Paper and Rollboard · Asbestos Sheathing · Asbestos Sponge (Felted, Sectional, Molded) · Asbestoside · C Asbestos Millboard · Carinsul · Cedargrain · Chemstone · Colorbestos · Colorceran · Colorchip · Colorlith · Colorlith Chalkboard · and 99 more on the company's page
Asbestos-cement pipe, board and sheet by other makers (264)
Careytemp (Philip Carey) · Unibestos (Union Asbestos & Rubber Co.) · Unibestos (Pittsburg Corning) · Sal-mo (Nicolet) · Careycel (Philip Carey) · Asbestos-Bonded (Armco Steel) · Asbestos-Cement Pipe (CertainTeed) · Aslac (UBE Ceycon) · Atco (American Tar) · Best-Side (DeWitt Products) · Birdsboard (Mirawal, Kaiser Aluminum & Chemical) · Bromley's Honor Pledge (George W. Bromley) · Carey (Philip Carey) · Careybesto-Board (Philip Carey) · Careyflex (Philip Carey) · Careysote (Philip Carey) · Careystone (Philip Carey) · Careystone Colonial Clapboard Siding (Philip Carey) · Cemesto (Celotex) · Cemesto Board (Celotex) · and 244 more: all asbestos-cement pipe, board and sheet
See also
- Johns-Manville: the company's history, documents, people, products and plants
- Johns-Manville on our products page: what the documents say about the company's asbestos products, with sources
References
- The Travelers Insurance Company's Product Information Booklet for Its Asbestos Seminar (1980–1981) (April 30, 1981), p. 3.
- Asbestos; Publication of Identifying Information (February 13, 1990), p. 14.
- Manville Fund's Answers to Interrogatories in Gunn v. Celotex (December 7, 1989), p. 107.
- Johns-Manville Material Safety Data Sheet for C MILLBOARD (September 21, 1978), p. 1.
- Manville Fund's Responses to Plaintiffs' Interrogatories in Moore v. H.K. Porter (February 15, 1990), p. 28.
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