Johns-Manville Corporation — later reorganized as Manville Corporation — was the largest manufacturer of asbestos products in the United States and one of the most extensively documented asbestos defendants in the history of product liability litigation. Johns-Manville manufactured asbestos pipe covering, asbestos block insulation, asbestos millboard, asbestos cloth, and a complete line of asbestos-containing construction and insulation products that were used throughout the United States Navy’s shipbuilding and overhaul programs for decades. Johns-Manville’s products appear in virtually every category of naval asbestos exposure documentation — pipe covering in engineering spaces, millboard in bulkheads, cloth in boiler maintenance, and gaskets throughout the mechanical systems of Navy ships. The scale of Johns-Manville’s asbestos product distribution and the volume of asbestos claims against the company resulted in its bankruptcy and the formation of the Manville Personal Injury Settlement Trust — one of the largest asbestos compensation trusts in history. Publicly filed asbestos litigation records document Johns-Manville’s Navy supply relationship, the formal military specification context for Johns-Manville products, and testimony confirming asbestos content in Navy-specified Johns-Manville materials.

Documented Asbestos — Johns-Manville in Naval Litigation

Johns-Manville — Navy Supply Documentation

“…o [[Johns Manville]] supplied \n17 [[asbestos]]-c[ontaining insulation to the Navy]…” — formal documentation specifically establishing that Johns-Manville supplied asbestos-containing insulation materials to the Navy appears in the publicly filed asbestos litigation corpus. The formal supply documentation — establishing Johns-Manville as an asbestos product supplier to the United States Navy — is the foundational link between Johns-Manville asbestos products and the naval asbestos exposure framework.

“…offered [[Johns Manville]] [[asbestos]]-containin[g products — Navy supply context]…” — documentation of the offer or sale of Johns-Manville asbestos-containing products in the Navy supply context appears in the corpus, consistent with the formal product supply documentation for Johns-Manville naval sales.

Navy Military Specification — Johns-Manville

“…Again, it was the [[navy]] that set the milita[ry specification — Johns-Manville context]…” — testimony specifically addressing the Navy’s role in setting military specifications for asbestos-containing products — in a Johns-Manville product context — appears in the corpus. The Navy specification context reflects the Bureau of Ships framework that required Johns-Manville products as meeting formal MIL-SPEC requirements — and the contested liability analysis of whether the Navy’s specification authority affected Johns-Manville’s product liability.

Testimony — Asbestos Content Confirmed

“…t to contain [[asbestos]]; \n14 is that corre[ct — testimony confirming asbestos content in Johns Manville products]…” — deposition testimony asking whether a Johns-Manville product is “correct” to contain asbestos — with the formal confirmation question structure of asbestos deposition practice — appears in the corpus. The formal confirmation of asbestos content in Johns-Manville products establishes the product liability foundation for Johns-Manville Navy asbestos claims.

“… in the [[navy]] did contain [[asbestos]], \n16 i[Johns-Manville product confirmation]…” — testimony confirming that a product used in the Navy did contain asbestos, in a Johns-Manville product context, appears in the corpus, reflecting the systematic product identification testimony in Johns-Manville naval asbestos proceedings.

Johns-Manville — Asbestos Pump Handling Context

“…Handling [[Asbestos]] or Pumps Coming Back to [Johns Manville context]…” — documentation in a Johns-Manville context addressing the handling of asbestos from pumps or asbestos materials returned to Johns-Manville appears in the corpus, reflecting the product-level handling documentation associated with Johns-Manville asbestos product management.

Johns-Manville Products in Naval Applications

Pipe covering: Johns-Manville’s asbestos pipe insulation — including Kaylo (jointly with Owens Corning after acquiring Kaylo formulation rights) and other Johns-Manville branded pipe covering products — was among the most widely used asbestos pipe insulation in Navy shipbuilding. Johns-Manville pipe covering was applied in pre-formed cylindrical sections to steam and hot water piping throughout naval vessel engineering spaces.

Block insulation: Johns-Manville manufactured asbestos block insulation for flat surface applications — used on boiler surfaces, equipment housings, and irregular shapes throughout naval engineering spaces. Block insulation required sawing, chipping, and fitting — operations that released asbestos fiber in enclosed engineering spaces.

Asbestos cloth: Johns-Manville produced asbestos woven fabric used as fire shields, heat blankets, and protective wrapping in Navy boiler rooms and engineering spaces. Johns-Manville asbestos cloth was standard equipment for boilermakers and Boiler Technicians.

Millboard and specialty products: Johns-Manville manufactured asbestos millboard used for fire insulation of bulkheads and equipment, and specialty asbestos products for high-temperature applications throughout naval vessel construction.

Navy veterans who were exposed to Johns-Manville asbestos pipe covering, block insulation, cloth, or other asbestos products during naval service — Machinist’s Mates, Boiler Technicians, Pipefitters, and insulation workers who worked with Johns-Manville materials in Navy ship engineering spaces — and who subsequently developed mesothelioma, asbestos-related lung cancer, asbestosis, or pleural disease, may qualify for:

  • VA presumptive service connection under 38 CFR § 3.309(d) for veterans with documented duty in engineering spaces where Johns-Manville asbestos products were installed
  • Manville Personal Injury Settlement Trust claims for victims of Johns-Manville asbestos exposure meeting the trust’s criteria
  • Civil claims against Manville Corporation successors based on documented asbestos product supply to the Navy under Bureau of Ships specifications

Key documents:

  • DD-214 or service records — documenting naval service in engineering spaces with Johns-Manville asbestos insulation
  • Rating records — Machinist’s Mate, Boiler Technician, or Pipefitter with documented engineering space duty
  • Diagnosis — mesothelioma, asbestos-related lung cancer, asbestosis, or pleural disease

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Exposure documentation derived from publicly filed asbestos litigation records including formal documentation that Johns-Manville supplied asbestos-containing insulation to the United States Navy, Navy military specification context for Johns-Manville asbestos products, testimony confirming asbestos content in Johns-Manville products used in the Navy, and Johns-Manville in the formal naval asbestos product liability framework. This does not constitute legal or medical advice.