Abex Industrial Friction Materials

Product Description

Abex Corporation was a major American industrial manufacturer whose product lines spanned decades of heavy manufacturing activity across the United States. Among its most significant product categories were industrial friction materials — engineered components designed to manage heat, force, and mechanical resistance in demanding industrial environments. These products included brake linings, clutch facings, and related friction components used across a broad range of industrial machinery and equipment.

Abex friction materials were manufactured to perform under high-stress conditions, making them a staple in facilities where heavy equipment, presses, hoists, cranes, and other machinery required reliable stopping and engagement mechanisms. The company supplied these products to industrial customers across sectors including steel production, mining, manufacturing, and material handling. Abex friction materials were not exclusively automotive — they were engineered specifically for the rigors of industrial-scale operations where standard consumer-grade components would be inadequate.

The company changed ownership and corporate structure over the years and eventually operated under the name Pneumo Abex LLC. Despite these transitions, the legacy of asbestos-containing friction products manufactured under the Abex name remained a significant source of occupational exposure claims well into the late twentieth century and beyond.

Asbestos Content

Abex Corporation incorporated asbestos into its industrial friction materials as a deliberate engineering choice. Asbestos was prized in the friction materials industry for its exceptional heat resistance, tensile strength, and durability. In brake linings and clutch facings subjected to repeated high-temperature friction cycles, asbestos fibers provided stability that early synthetic alternatives could not match.

In industrial friction applications, the asbestos content in these products was often substantial. Chrysotile asbestos was commonly used across the friction materials industry, though other asbestos fiber types also appeared in some formulations. Asbestos was bound within a matrix of resins and other materials and compressed or molded into the finished lining or facing shape. While this binding was intended to contain the fibers during normal use, it did not prevent fiber release during the cutting, grinding, drilling, and fitting processes involved in installation and replacement — nor did it fully prevent fiber release when linings wore down under friction during operation.

Documentation associated with the Pneumo Abex LLC Asbestos Settlement Trust confirms the asbestos-containing nature of friction materials manufactured by Abex Corporation, establishing the factual and legal basis for trust claims arising from exposure to these products.

How Workers Were Exposed

Industrial workers encountered Abex friction materials through a range of routine occupational tasks. Because these products were used in heavy industrial equipment rather than passenger vehicles, the workers most likely to have been exposed were those employed in facilities where such equipment was installed, maintained, and repaired.

Installation and fitting was a primary exposure pathway. Workers cutting brake linings or clutch facings to size — whether with saws, grinders, or other abrasive tools — generated dust that contained asbestos fibers. Industrial brake linings were often thicker and larger than automotive equivalents, meaning more material was removed during fitting, and correspondingly more dust was created.

Routine maintenance and replacement represented an ongoing exposure source. Industrial friction components wear down with use and require periodic inspection and replacement. Mechanics and maintenance workers who removed worn linings, cleaned brake assemblies, and installed new components were exposed to accumulated asbestos dust released from deteriorated materials, as well as dust generated during handling of replacement parts.

Proximity exposure affected workers who were present in the same facility or workspace where friction material work was being performed, even if they were not directly handling the products themselves. In industrial settings with limited ventilation or enclosed maintenance areas, airborne fibers could travel considerable distances from the point of generation.

Supervisory and quality control personnel who worked near maintenance operations, as well as workers who handled Abex friction materials in shipping, receiving, or storage functions, may also have accumulated meaningful exposure over the course of long industrial careers.

Because heavy industrial equipment had long service lives and was maintained repeatedly over many years, a single worker might encounter Abex friction materials dozens or hundreds of times throughout a career. Cumulative exposure of this nature is consistent with the latency patterns associated with asbestos-related diseases, which often do not manifest clinically until decades after the initial exposure period.

Diseases associated with occupational asbestos exposure include mesothelioma, asbestos-related lung cancer, asbestosis, and other asbestos-caused pulmonary conditions. These diagnoses have formed the basis of claims brought against Abex Corporation and its successors.

Documented Product Identification

The following details are drawn from public asbestos litigation records, manufacturer catalog pages, technical manuals, and corporate history materials. Each item reflects the product as documented in those sources.

Documented asbestos-use period: 1927-1987

Corporate context: Abex Corporation manufactured automotive and railroad friction products containing asbestos from approximately 1927 to 1987. The company operated under corporate parent Pneumo Abex Corporation, with service information handled through Prentice-Hall Corporation System, Inc. in Albany, NY.

Brand identification: Products branded under Abex name with various trade names including American Brake Materials, Brakeblok, American Eagle, Comet, and others; NAPA sold Abex products until 1969

Documented asbestos components: brake linings, brake shoes, clutch facings.

Documented asbestos-component suppliers: the public records lists the following external suppliers of asbestos-bearing packing, gaskets, and seals used in conjunction with this manufacturer’s equipment — Asbestos Corporation, Ltd. (Thetford Mines, Quebec), Bell Asbestos Mines, Ltd. (Thetford Mines, Quebec), GAF Corp. (Hyde Park, Vermont), Lake Asbestos (Black Lake, Quebec), Johns-Manville Corporation, Canadian Johns-Manville Corp. (Asbestos, Canada), Vermont Asbestos Group, Inc. (Hyde Park, Vermont), North American Asbestos Corporation.

Industries served: Automotive, Trucking, Railroad, Industrial.

Documented product lines:

  • ABEX 121 Super Brakes (1975-1987). Automotive brake linings containing chrysotile asbestos — asbestos components: brake linings.
  • Abex Brake Shoe (1943-1987). Automotive brake shoes containing chrysotile asbestos — asbestos components: brake shoes.
  • Abex BrakeBlok (1938-1987). Automotive brake block friction products — asbestos components: brake linings.
  • Abex Protector (1975-1987). Automotive friction products containing chrysotile asbestos — asbestos components: brake linings.
  • American Brake Materials (1930-1987). Automotive brake friction materials — asbestos components: brake linings.
  • American Brakeblok (1938-1987). Automotive brake block products — asbestos components: brake linings.
  • American Eagle (1974-1987). Automotive brake friction products containing chrysotile asbestos — asbestos components: brake linings.
  • Comet (1957-1977). Railroad brake shoes with friction material attached to steel backings containing approximately 5% chrysotile asbestos — asbestos components: brake shoes.

Abex automotive friction products contained approximately 25-70% chrysotile asbestos and were manufactured in Detroit, Michigan; Salisbury, North Carolina; and Winchester, Virginia. Railroad Comet brake shoes contained approximately 5% chrysotile asbestos.