Asbestos Exposure among Mechanics
For decades, U.S. automobile and aircraft mechanics have been exposed to chrysotile asbestos, a material once widely used in vehicle components due to its heat and friction resistance. Mechanics handling parts such as brakes, clutches, gaskets, and insulation faced continuous exposure, putting them at risk of asbestos-related diseases including mesothelioma, asbestosis, and lung cancer.
Aircraft mechanics, both civilian and military, were similarly endangered between the 1930s and 1980s, as asbestos was commonly used in plane engines, insulation, and brakes. While the Environmental Protection Agency issued a ban on chrysotile asbestos imports in March 2024, risks remain, particularly when servicing older vehicles or handling aftermarket parts imported from overseas.
Asbestos exposure among mechanics is a long-term occupational hazard whose health impacts often appear decades after the initial contact.
Asbestos-Containing Materials That Led to Exposure
Since the early 1900s, asbestos was extensively used in automotive manufacturing. Common vehicle components containing asbestos included hood liners, soundproofing and undercoating, clutch assemblies and brake linings, gaskets, valve rings and seals, electrical insulation, spark plugs, friction materials, body putty, heat shields, and adhesives.
Mechanics frequently inhaled asbestos fibers while repairing, replacing, or installing these components. Brake dust posed a particularly serious hazard, as disturbing it released microscopic asbestos fibers into the air, significantly increasing the risk of inhalation.
Aircraft mechanics faced similar dangers. Asbestos was prized for its heat-resistant properties and was used in many aircraft parts. Routine maintenance and repair activities released fibers into the air, exposing workers in hangars, aircraft carriers, and military bases to both direct and indirect exposure.