Documents in our library describe Chempac (Johns-Manville) as “chempac tape, sheet, sheet and cut gaskets of teflon in the j-m chemac line”.1 They give it as made 1891–1983.2 They put its asbestos content at 0% to 90%.2 Where the documents differ, each is listed below with its source.
You don't need the product names or old records. No fee unless we recover compensation for your family.
Asbestos claims
If you or a family member worked with or around Chempac (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 Chempac (Johns-Manville) in the documents, in each document's own words.
Asbestos Magazine, 1958, June 1958
- Description: “Chempac Tape, Sheet, Sheet and Cut Gaskets of Teflon in the J-M Chemac line”, said by Johns-Manville, as recorded by Asbestos (magazine), p. 521
Asbestos; Publication of Identifying Information (1990)
- Asbestos content: “white asbestos yarns, 0 to 90%; blue asbestos yarns, 0 to 90%; commercial grade T asbestos, 0 to 90%”, said by Manville Corporation, as recorded by U.S. EPA, Federal Register 55 FR (Feb. 13, 1990), p. 122
- Made from: “produced 1891 to 1983”, said by Manville Corporation, as recorded by U.S. EPA, Federal Register 55 FR (Feb. 13, 1990), p. 122
- Ingredient: “TFE, 0 to 10%; mineral oil, 0 to 1%; wax and oil, 0 to 1%”, said by Manville Corporation, as recorded by U.S. EPA, Federal Register 55 FR (Feb. 13, 1990), p. 122
- Description: “braid-over-braid packing, square cross section; braided in the interlocked pattern; twisted to form a round cross section”, said by Manville Corporation, as recorded by U.S. EPA, Federal Register 55 FR (Feb. 13, 1990), p. 122
- Asbestos fiber: “white asbestos yarns; blue asbestos yarns”, said by Manville Corporation, as recorded by U.S. EPA, Federal Register 55 FR (Feb. 13, 1990), p. 122
Sourcebook on Asbestos Diseases: Medical, Legal, and Engineering Aspects, Volume Two
- Description: “asbestos teflon gaskets” (as of 1953), p. 673
Kind of product
We list Chempac (Johns-Manville) with cloth, tape and other textiles and gaskets and packing, from how the documents describe it. Those pages explain how such products exposed workers.
Trades that worked with products like it: Pipefitters and Plumbers, Millwrights, Machinists, and Industrial Mechanics.
Other cloth, tape and other textiles by Johns-Manville (73)
Min-k · Thermobestos pipe covering · Thermomat · Thermotape · Thermowrap · Asbestos Rope · Asbestos Tape · Asbestos Yarn · Besto-Tak · Blastape · Blastube · Ceilinite · Chemtite · Colorbestos · Colorbestos Drapery · Commercial Grade Asbestos Cloth · Commercial Grade Asbestos Tape · Commercial Grade Asbestos Tubing · Duplex Rod and Plunger Packing · Jewett · and 53 more on the company's page
Cloth, tape and other textiles by other makers (228)
Pyrotex (Raybestos-Manhattan) · Novabestos (Raybestos-Manhattan) · Sal-mo (Nicolet) · Insutape (Unarco) · Novatex (Raybestos-Manhattan) · Brapaco (Eureka Packing) · Brown Bag (Joneric Products) · Cablegard (Quin-T) · Caposite (Cape Asbestos Co. of London) · Carey (Philip Carey) · Carosel (U.S. Rubber) · Celoron (Continental Diamond Fibre) · Chevron Asbestos Roof Coating (Standard Oil of California) · Clarex-lageeze (Claremont Industries) · Cleangard (H. K. Porter) · Coldfinger (Scandura) · Coronado Line (O.K.I. Supply) · Covergard (H. K. Porter) · Covergard (Southern Asbestos Co.) · Dilecto (Continental Diamond Fibre) · and 208 more: all cloth, tape and other textiles
Other gaskets and packing by Johns-Manville (20)
Jewett · Spirotallic · Centripac · Railroad Brake Shoes · Sea Ring Packing · Chemstone · Mobilene Sheet Packing · No. 60 Service Sheet · 101 Mobilene Sheet · C Asbestos Millboard · Kearsarge · No. 100 Kearsarge Sheet · No. 118 Kearsarge Gaskets · Superheat · Tadpole · Bellowseal · Cumpac · Goetze Metallic Gaskets · Locklube Packings · Style 869
Gaskets and packing by other makers (191)
Sal-mo (Nicolet) · Flexatallic (Flexatalic Gasket Corp.) · Aztec (Asbestos Textile Co.) · Mintex (British Belting & Asbestos) · Ring packing (Garlock) · Black Mastite (Aberdeen Industries) · Bronco (Janos Industrial Insulation) · Bulldog (Beldam Packing & Rubber Company) · C.W. (Chicago Wilcox) · Cabcock (Unarco) · Carey (Philip Carey) · Chemlon (Crane Packing) · Chesco (A. W. Chesterton) · Chesterton (A. W. Chesterton) · Chesterton 1000 (A. W. Chesterton) · Chesterton Packing Service (A. W. Chesterton) · Chesterton Sixty Four (A. W. Chesterton) · Cogasa (Rhopac) · Connectite (GAF) · Corbestos (Dana) · and 171 more: all gaskets and packing
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
- Asbestos Magazine, 1958, June 1958 (June 1, 1958), p. 52.
- Asbestos; Publication of Identifying Information (February 13, 1990), p. 12.
- Sourcebook on Asbestos Diseases: Medical, Legal, and Engineering Aspects, Volume Two (1986), p. 67. Not yet published in our library.
Cite this page
“Chempac (Johns-Manville).” AsbestosClaims.Law Library. https://asbestosclaims.law/library/products/johns-manville-chempac.
ACL Doc numbers and their short links never change. See how to cite the Library.
Talk with an asbestos lawyer
Start with what you remember, and we'll take it from there.
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.