Asbestocite (Johns-Manville)

Asbestocite was a Johns-Manville asbestos-cement sheet. J-M's 1970 sworn answers in a lawsuit list it as "Asbestos-cement sheets" under weather proofing.¹ An insurance company's 1981 list of asbestos products, compiled from other companies' answers in lawsuits, gives Asbestocite, listed as sheets, as made from 1927 to 1975.²

In 1960, J-M's industrial health manager wrote to the Los Angeles Division of Occupational Health that four J-M products, Marinite, Colorlith, Asbestocite and Transite, contained from 25% to 50% asbestos fibre, a range he gave for the four together, and that the balance of Asbestocite was portland cement.³ A J-M booklet on fabricating its industrial boards, filed with 1958 memos, says Asbestocite could be sheared where a smooth edge was not needed, and recommends 1/8" and 3/16" thicknesses for the machine.⁴

In 1929 J-M's employee magazine described a water gas machine at Cedar Rapids insulated with Thermo Fire Felt and a fill of Asbestocite.⁵ A 1983 company history in Manville's employee publication says that by the 1950s J-M was making Asbestocite for cold storage rooms and air ducts.⁶

See also Flexboard and Flat Transite.

Asbestos claims

If you or a family member worked with or around Asbestocite (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 Asbestocite (Johns-Manville) in the documents, in each document's own words.

Kind of product

We list Asbestocite (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, Roofers.

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

1. The Borel v. Fibreboard Case File (1969-1972), Answers to interrogatories with exhibits (March 27, 1970), p. 20.
2. The Travelers Insurance Company's Product Information Booklet for Its Asbestos Seminar (1980–1981) (April 30, 1981), p. 3.
3. H. M. Jackson to the Los Angeles Division of Occupational Health on Marinite, Colorlith, Asbestocite and Transite (July 11, 1960), p. 1.
4. Johns-Manville Memos on a Caution Label for Marinite (1958), Booklet: Johns-Manville Industrial Board Products, Equipment and Techniques for Fabricating (January 1, 1958), p. 18.
5. The J-M Circle, 1929, February 1929 (February 1, 1929), p. 6.
6. Today: "125 Proud Years" (Manville, 1983) (January 1, 1983), p. 2.
7. Manville Fund's Answers to Interrogatories in Gunn v. Celotex (December 7, 1989), p. 101.
8. Union Carbide Chemicals Company: Thermal Insulation and Accessories Manual (October 1, 1962), p. 78.
9. The Potter v. Fibreboard Case File (1969-1972), Answers to plaintiff's interrogatories with exhibits (December 29, 1969), p. 20.
10. Sourcebook on Asbestos Diseases: Medical, Legal, and Engineering Aspects, Volume Two (1986), p. 56. Not yet published in our library.
11. Manville Fund's Responses to Plaintiffs' Interrogatories in Moore v. H.K. Porter (February 15, 1990), p. 20.