Printing Industry — Linotype Hot-Metal Typesetting, Letterpress, Offset & Newspaper Presses

Commercial and newspaper printing was an asbestos-intensive trade through most of the 20th century, with three distinct exposure pathways converging on the print-shop floor: (1) hot-metal typesetting machines, where electric melting pots ran at 550°F twenty-four hours a day and were insulated with asbestos; (2) drying-oven systems on web-fed offset and rotogravure presses, where gas or electric heaters were insulated with asbestos block, paper, or rope; and (3) general plant utilities — boilers, steam piping, electrical motor insulation, and gasketed valves — that ran continuously in any large commercial print shop or newspaper composing room.

Plaintiffs alleged in publicly filed U.S. asbestos personal-injury and wrongful-death litigation that hot-metal typecasting machines manufactured by Mergenthaler Linotype Company, Intertype Corporation, Ludlow Typograph Company, and Monotype Corporation were specified and shipped with asbestos-containing lead-pot insulation, electrical wire insulation, gasket material, and hot-metal handling pads. Plaintiffs further alleged that commercial printing presses and newspaper web presses manufactured by Harris-Intertype Corporation, Miehle-Goss-Dexter, Goss International, R. Hoe & Company, Heidelberger Druckmaschinen (Heidelberg), Cottrell, and other major U.S. and European printing-equipment makers shipped with asbestos-insulated drying ovens, ink-temperature control systems, and motor housings.

The Linotype Lead-Pot Exposure Pathway

The Mergenthaler Linotype and competing Intertype machine was the workhorse of newspaper composing rooms and commercial book/magazine print shops from the 1890s through the early 1980s. Each machine carried an electric melting pot that held roughly thirty pounds of molten typecasting alloy (lead, antimony, tin) at 550°F continuously during operation. The pot was insulated on its sides, bottom, and lid with asbestos-containing block insulation, asbestos paper, and asbestos rope packing. The pot-cover gasket — replaced every few years as part of normal maintenance — was an asbestos product.

A typesetter working a Linotype eight hours a day stood directly in front of the heated lead pot for an entire shift. Maintenance machinists who serviced the pots — replacing heating elements, rebuilding the mold-disk assembly, repacking gaskets — disturbed asbestos insulation as a routine part of the job.

Plaintiffs alleged in publicly filed asbestos litigation that the Linotype lead-pot insulation, pot-cover gasketing, and electrical wire insulation on Mergenthaler and Intertype machines contained chrysotile and/or amphibole asbestos throughout the documented era, and that workers who operated, set up, and maintained these machines inhaled airborne asbestos fibers as a foreseeable consequence of the machine design.

Other Print-Shop Exposure Sources

• Drying-oven insulation on web-fed offset and rotogravure presses (Miehle-Goss-Dexter, Goss, Harris)
• Steam-piping and boiler insulation in the plant utility room
• Asbestos cloth and mitts used to handle hot type slugs and ink-roller change-overs
• Asbestos-board partitions and acoustical tile in composing rooms and pressrooms
• Electrical motor and switchgear insulation on large press drives
• Gasket material on heated platens, ink-fountain rollers, and steam ironing presses
• Boiler insulation on plant heating systems serving large multi-floor commercial print shops

Workers Exposed

• Linotype operators (typesetters / compositors)
• Intertype operators
• Ludlow display-type operators
• Monotype keyboard and caster operators
• Print-shop machinists and maintenance technicians
• Web-press operators and pressmen
• Newspaper composing-room machinists
• Stereotypers (newspaper plate-makers)
• Bindery workers operating heated equipment
• Plant electricians and pipefitters in commercial print shops and newspaper buildings

Trade Unions Historically Representing Print-Shop Workers

• International Typographical Union (ITU) — composing-room workers (merged into CWA 1987)
• Graphic Communications International Union (GCIU) — pressmen, bindery, platemakers
• International Printing Pressmen and Assistants’ Union of North America (historic, merged)
• International Stereotypers, Electrotypers and Platemakers’ Union (historic, merged)
• Lithographers and Photoengravers International Union

If You Worked in the Printing Industry

If you operated, maintained, or worked alongside hot-metal typecasting machines or commercial printing presses during the asbestos era — and have since been diagnosed with mesothelioma, asbestosis, lung cancer, or another asbestos-related illness — you may have legal rights.

Free, confidential case evaluation: Speak with O’Brien Law Firm — (314) 936-2956