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 trust funds 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

Navy Military Specification — Johns-Manville

Testimony — Asbestos Content Confirmed

Johns-Manville — Asbestos Pump Handling Context

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.

VA Claims and Legal Options — Johns-Manville Corporation

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 service connection under VA asbestos-claim guidance 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.