Thermowrap was a Johns-Manville pipe insulation. In sworn answers in two lawsuits, in 1969 and 1970, J-M described it as "made up of a blanket of asbestos fibers held together by asbestos yarns and enclosed in a neoprene-coated asbestos jacket."1,2
The sources give different years. An insurance company's 1981 list of asbestos products, compiled from other companies' answers in lawsuits, puts Thermowrap among paper, felt and blankets, made from 1951 to 1954.3 A 1990 EPA notice that published what Manville reported gives 1951 to 1964, for Thermowrap and Thermotape together, which it calls neoprene coated asbestos: a "neoprene coated pad and blanket."4 For the two products together it gives asbestos fiber, 95 to 98%, and neoprene, 2 to 5%.4
See also Thermotape.
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Asbestos claims
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What each document says
Every statement about Thermowrap (Johns-Manville) in the documents, in each document's own words.
The Potter v. Fibreboard Case File (1969-1972), Answers to plaintiff's interrogatories with exhibits
- Description: “(Pipe Insulation) Made up of a blanket of asbestos fibers held together by asbestos yarns and enclosed in a neoprene-coated asbestos jacket”, p. 291
The Borel v. Fibreboard Case File (1969-1972), Answers to interrogatories with exhibits
- Description: “THERMO-WRAP. (Pipe Insulation) Made up of a blanket of asbestos fibers held together by asbestos yarns and enclosed in a neoprene-coated asbestos jacket.”, p. 292
- Asbestos content: “a blanket of asbestos fibers held together by asbestos yarns and enclosed in a neoprene-coated asbestos jacket”, p. 292
The Travelers Insurance Company's Product Information Booklet for Its Asbestos Seminar (1980–1981)
Asbestos; Publication of Identifying Information (1990)
- Made from: “produced 1951 to 1964”, said by Manville Corporation, as recorded by U.S. EPA, Federal Register 55 FR (Feb. 13, 1990), p. 144
- Made until: “produced 1951 to 1964”, said by Manville Corporation, as recorded by U.S. EPA, Federal Register 55 FR (Feb. 13, 1990), p. 144
- Ingredient: “neoprene, 2 to 5%”, said by Manville Corporation, as recorded by U.S. EPA, Federal Register 55 FR (Feb. 13, 1990), p. 144
- Description: “neoprene coated pad and blanket”, said by Manville Corporation, as recorded by U.S. EPA, Federal Register 55 FR (Feb. 13, 1990), p. 144
- Asbestos content: “asbestos fiber, 95 to 98%”, said by Manville Corporation, as recorded by U.S. EPA, Federal Register 55 FR (Feb. 13, 1990), p. 144
Manville Fund's Answers to Interrogatories in Gunn v. Celotex (1989)
- Made from: “Date Manufactured: 1939-1950”, p. 1255
- Made from: “Date Manufactured: 1951”, p. 1255
- Made at: “Manville Plant, Manville, New Jersey (1913 through 1985): Thermowrap” (at Manville) (the plant: Manville, New Jersey), p. 635
- Made until: “Date Discontinued: 1971 - 1975”, p. 1255
- Asbestos content: “90.0 % fiber by weight”, p. 1255
- Made until: “Date Discontinued: 1971-1975”, p. 1255
- Asbestos fiber: “Unknown (Probably Chrysotile)”, p. 1255
- Form: “Sheet/Block, Blankets”, p. 1255
- Asbestos fiber: “Chrysotile and/or Amosite”, p. 1255
- Asbestos fiber: “Chrysotile and/or Amosite”, p. 1255
- Asbestos content: “asbestos containing”, p. 635
- Form: “Blankets”, p. 1255
- Use: “primarily designed for steam lines on trains”, p. 795
- Description: “A pipe insulation made up of a blanket of asbestos fibers held together by asbestos yarns and enclosed in a neoprenecoated asbestos jacket”, p. 795
Union Carbide Chemicals Company: Thermal Insulation and Accessories Manual (1962)
Manville Fund's Responses to Plaintiffs' Interrogatories in Moore v. H.K. Porter (1990)
- Asbestos content: “asbestos containing”, p. 237
- Made at: “Manville Plant (1913 to 1985): Thermowrap” (at Manville) (the plant: Manville, New Jersey), p. 237
Kind of product
We list Thermowrap (Johns-Manville) with pipe covering and block insulation, asbestos-cement pipe, board and sheet, paper, felt and millboard and cloth, tape and other textiles, from how the documents describe its form. Those pages explain how such products exposed workers.
Trades that worked with products like it: Insulators and Insulation Workers, Pipefitters and Plumbers, Carpenters and Construction Workers.
Other pipe covering and block insulation by Johns-Manville (60)
Thermobestos · Superex · Asbestocel · 85 Magnesia · Thermobestos pipe covering · Super Fire Felt · Superex 2000 · Superex-1900 · Superex-m · Superex-sg · Therm-o-bestos · Thermo Fire Felt · Train Pipe Covering · Vitribestos · Vitro Fire Felt · White Surface Asbestos Jacket · Zerogloss · Air-Cell · Anti-sweat · Asbesto-metallic · and 40 more on the company's page
Pipe covering and block insulation by other makers (216)
Careytemp (Philip Carey) · Kaylo (Owens-Corning) · Unibestos (Union Asbestos & Rubber Co.) · Kaylo (Owens-Illinois) · Unibestos (Pittsburg Corning) · Therm-O-Flake (Illinois Clay Products) · Thermalite (Keene) · Thermalite 85% Magnesia (Baldwin-Ehret-Hill) · Thermalite 85% Magnesia (Ehret Magnesia Manufacturing Co.) · Thermasil (Baldwin-Ehret-Hill) · Thermasil (Ehret Magnesia Manufacturing Co.) · Thermasil (Keene) · Tri-calite (Crown Cork & Seal) · Trica-mag (Crown Cork & Seal) · Tricalite (Mundet Cork) · Type 19 (Crown Cork & Seal) · Type 19 Block (Mundet Cork) · Type M (Crown Cork & Seal) · Unarco (Union Asbestos & Rubber Co.) · Unibestos (Pittsburgh Corning) · and 196 more: all pipe covering and block insulation
Other asbestos-cement pipe, board and sheet by Johns-Manville (119)
Flexboard · Thermobestos · Min-k · Asbestocel · Metal-on · Superex-1900 · Superex-m · Superex-sg · Temp-Tite · Therm-o-bestos · Thermo Fire Felt · Thermomat · Transite · Transite Acoustical Panel · Transite Core Plate · Transite Insulated Roof · Transite Panel · Transite Sewer Pipe · Transite-Korduct · Transitop · 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) · Suprawall (Supradur) · Suramic (Supradur) · Sussex 32 (National Gypsum) · T-deck (Keasbey & Mattison) · Therm-O-Tec (National Gypsum) · Thermalux (U.S. Gypsum) · Thermo-board (Philip Carey) · Timbertex (Ruberoid) · Tip Top (Ambler Asbestos Shingle & Sheathing Company) · Top Notch (Lehon) · Trafford Tile (Keasbey & Mattison) · Tri-Tone (Philip Carey) · Triple A (Atlantic Asphalt & Asbestos) · Triple Aaa Hip & Ridge Shingles (Atlantic Asphalt & Asbestos) · Turnall "Colourgaze" (Atlas Asbestos) · 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 Potter v. Fibreboard Case File (1969-1972), Answers to plaintiff's interrogatories with exhibits (December 29, 1969), p. 29.
- The Borel v. Fibreboard Case File (1969-1972), Answers to interrogatories with exhibits (March 27, 1970), p. 29.
- The Travelers Insurance Company's Product Information Booklet for Its Asbestos Seminar (1980–1981) (April 30, 1981), p. 9.
- Asbestos; Publication of Identifying Information (February 13, 1990), p. 14.
- Manville Fund's Answers to Interrogatories in Gunn v. Celotex (December 7, 1989), p. 125.
- Union Carbide Chemicals Company: Thermal Insulation and Accessories Manual (October 1, 1962), p. 83.
- Manville Fund's Responses to Plaintiffs' Interrogatories in Moore v. H.K. Porter (February 15, 1990), p. 23.
Cite this page
“Thermowrap (Johns-Manville).” AsbestosClaims.Law Library. https://asbestosclaims.law/library/products/johns-manville-thermowrap.
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