Documents in our library describe Niagrite (Johns-Manville) as “paper,felt,blankets”.1 They give it as made 1911–1973.1,2 They put its asbestos content at 98%.2 The asbestos named is chrysotile. Where the documents differ, each is listed below with its source.
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Asbestos claims
If you or a family member worked with or around Niagrite (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 Niagrite (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)
Manville Fund's Answers to Interrogatories in Gunn v. Celotex (1989)
- Made from: “Date Manufactured: 1911”, p. 1182
- Warning label: “Date Labeled: 1970”, p. 1182
- Asbestos content: “98.0 % fiber by weight”, p. 1182
- Use: “for wrapping around electrical cables as fireproofing”, p. 792
- Asbestos fiber: “Chrysotile”, p. 1182
- Asbestos content: “asbestos containing”, p. 632
- Form: “Felt, Blankets”, p. 1182
- Made until: “Date Discontinued: 1973”, p. 1182
- Made at: “Manville Plant, Manville, New Jersey (1913 through 1985): Niagrite” (at Manville) (the plant: Manville, New Jersey), p. 632
- Description: “A felted asbestos tape ... usually reinforced with burlap or asbestos cloth”, p. 792
USPTO trademark case files (Trademark Full Text XML Data, Annual Applications, 2025 edition)
- Sold from: “first used in commerce 1911”, said by JOHNS-MANVILLE CORPORATION, as recorded by U.S. Patent and Trademark Office3
- Description: “ASBESTOS INSULATING AND FIREPROOFING TAPE FOR USE ON ELECTRICAL CONDUCTORS”, said by JOHNS-MANVILLE CORPORATION, as recorded by U.S. Patent and Trademark Office3
Manville Fund's Responses to Plaintiffs' Interrogatories in Moore v. H.K. Porter (1990)
- Asbestos content: “asbestos containing”, p. 234
- Made at: “Manville Plant (1913 to 1985): Niagrite” (at Manville) (the plant: Manville, New Jersey), p. 234
Kind of product
We list Niagrite (Johns-Manville) with paper, felt and millboard, from how the documents describe its form. That page explains how such products exposed workers.
Trades that worked with products like it: Electricians and Electrical Workers, Roofers.
Other paper, felt and millboard by Johns-Manville (89)
Min-k · Doublex · Thermomat · Firetard · Vitribestos · High Temperature Flexible Min-k Blankets · J-m Built-up Roof · Johns-Manville Jm · Long Fiber Asbestos Paper · Microbestos · Min-klad · Niagarite · No. 50 · Non Burn Asbestos Paper · Non-burn Asb Paper · Nycinsul · Pan-o-cel · Paperbestos · Quinorgo · Quinorogo 6000 · and 69 more on the company's page
Paper, felt and millboard by other makers (210)
Pyrotex (Raybestos-Manhattan) · Insubestos (Unarco) · Limpet (Keasbey & Mattison) · Novabestos (Raybestos-Manhattan) · Sal-mo (Nicolet) · Lily (Jujo Paper) · Micabestos (Raybestos-Manhattan) · Micarta 8564 (Westinghouse) · Millboard (GAF) · Muffler (Celotex) · Mule-Hide (Lehon) · Neon (Nicolet) · Nicel (Nicolet) · No. 15 Fiberock (Philip Carey) · No. 15 Tar Fiberock (Philip Carey) · No. 30 Fiberock (Philip Carey) · No. 35 Fiberock (Philip Carey) · No. 41-Rpd (Raybestos-Manhattan) · No. 411 Asbestos Underlayment (Nicolet) · No. 45 Fiberock (Philip Carey) · and 190 more: all paper, felt and millboard
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. 7.
- Manville Fund's Answers to Interrogatories in Gunn v. Celotex (December 7, 1989), p. 118.
- USPTO trademark case files (Trademark Full Text XML Data, Annual Applications, 2025 edition) (February 11, 1948). Not yet published in our library.
- Manville Fund's Responses to Plaintiffs' Interrogatories in Moore v. H.K. Porter (February 15, 1990), p. 23.
Cite this page
“Niagrite (Johns-Manville).” AsbestosClaims.Law Library. https://asbestosclaims.law/library/products/johns-manville-niagrite.
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This page is provided for general informational purposes and does not constitute legal advice. Every asbestos case turns on its own facts, exposure history, diagnosis, deadlines, available evidence, and applicable law. Reviewing this page does not create an attorney-client relationship. For advice about your specific situation, call 833-4-ASBESTOS for a free case review.