Grade A Insulating Cement was a factory-prepared insulating cement from Ruberoid and GAF.1 As the U.S. Environmental Protection Agency published the company's account in 1990, it was made of fibers "not as long as those used in the better grade AA," together with suitable binding materials.1 GAF's 1989 filing under the Asbestos Information Act, made for itself and The Ruberoid Co., gives its temperature limit as 1000 degrees F, and includes a formula for it dated 1938 and 1945.1,2
Related: Grade AA Insulating Cement.
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Asbestos claims
If you or a family member worked with or around Grade A Insulating Cement (GAF) and later developed mesothelioma or another asbestos disease, a claim may be paid by the G-I Holdings (GAF) asbestos trust. Free case review.
The formulas
The 1 formula documents give for Grade A Insulating Cement (GAF), each with its ingredients and amounts exactly as printed. Amounts are by weight unless the document says otherwise; a total that doesn't come to 100 is the document's own.
Grade A Insulating Cement · 1938 and 1945
“The formula for this product is unknown except that in 1938 and 1945 it consisted of:”
| Constituent | Amount |
|---|---|
| chrysotile | 67% |
| CSW clay | 28% |
| Portland cement | 5% |
Source: GAF Asbestos Information Act Submission (1989), p. 322
What each document says
Every statement about Grade A Insulating Cement (GAF) in the documents, in each document's own words.
Asbestos; Publication of Identifying Information (1990)
- Description: “a factory-prepared cement consisting of fibers which were not as long as those used in the better grade AA”, said by GAF Building Materials Corporation, as recorded by U.S. EPA, Federal Register 55 FR (Feb. 13, 1990), p. 91
- Temperature limit: “Its temperature limit was 1,000 °F”, said by GAF Building Materials Corporation, as recorded by U.S. EPA, Federal Register 55 FR (Feb. 13, 1990), p. 91
GAF Asbestos Information Act Submission (1989)
- Temperature limit: “Its temperature limit was 1000 degrees F.”, p. 322
See also
- GAF: the company's history, documents, people, products and plants
- GAF 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. 9.
- GAF Asbestos Information Act Submission (October 6, 1989), p. 32.
Cite this page
“Grade A Insulating Cement (GAF).” AsbestosClaims.Law Library. https://asbestosclaims.law/library/products/gaf-grade-a-insulating-cement.
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