Company Overview

Hercules was founded in 1912 as the Hercules Powder Company, spun off from the DuPont explosives division under the 1912 federal antitrust decree. Headquartered in Wilmington, Delaware, Hercules grew from a black-powder and dynamite maker into one of the country’s largest diversified chemical companies, later renamed Hercules Inc. Its historic product portfolio allegedly included military and commercial explosives, rocket propellants, naval stores (rosin and turpentine derivatives from Southern pine stumps), paper chemicals, resins, food-grade cellulose derivatives, and specialty polymers.

Hercules operated a national manufacturing footprint centered on the Wilmington DE corporate campus and R&D center, the Hattiesburg MS naval-stores complex, the Radford Army Ammunition Plant in Virginia (Hercules-managed for the U.S. Army from 1940 through 1994), the Kenvil / Parlin NJ explosives and chemicals plants, the Louisiana MO Missouri Ordnance Works / smokeless-powder complex, and additional chemical, resins, and paper-additive plants across the U.S. These are the plant types repeatedly named in publicly filed U.S. asbestos personal-injury and wrongful-death litigation as premises defendants.

In 1995 Hercules Aerospace was merged into Alliant Techsystems (ATK), carrying with it the solid-rocket motor and propellant lines historically operated by Hercules — including Radford VA and other legacy Hercules ordnance sites. In 2008 Hercules Inc. itself was acquired by Ashland Inc. Legacy Hercules facilities operated for many decades and pre-1980 asbestos-containing materials allegedly remained in place throughout the historical operating era according to publicly filed asbestos litigation records.

Hercules is named on this hub as a premises-focused defendant. Chemical plants, naval-stores refineries, ammunition plants, and solid-rocket-motor lines of this era allegedly relied heavily on asbestos pipe covering, block insulation, gaskets, packing, cloth, and refractories to handle steam, hot process fluids, reactors, dryers, powerhouses, and propellant-casting operations.

Documented ACM Footprint

Plaintiffs alleged in publicly filed U.S. asbestos personal-injury and wrongful-death litigation that pre-1980 Hercules chemical, naval-stores, ammunition, and rocket-propulsion plant premises involved asbestos through:

  • Asbestos pipe covering on high-pressure steam mains, reactor feeds, distillation columns, naval-stores stills, and process piping
  • Asbestos block and cork insulation on reactors, autoclaves, evaporators, dryers, and refrigeration equipment
  • Asbestos sheet gaskets at reactor, still, column, autoclave, and process-piping flanges
  • Asbestos rope and braided packing on chemical pumps, mixers, centrifuges, and valves
  • Asbestos refractory brick, castable, and gaskets at Hercules powerhouse boilers, naval-stores stills, and propellant-processing ovens
  • Asbestos cloth, tape, and phenolic-molded components used in solid-rocket-motor casing insulation, nozzle liners, and propellant-line insulation at Radford VA and other Hercules Aerospace sites
  • Asbestos sprayed fireproofing and millboard on structural steel in explosives-handling bays and multi-story chemical halls
  • Asbestos-lined switchgear, arc chutes, and panelboards in plant electrical rooms and motor-control centers
  • Asbestos lab bench tops, fume-hood liners, and glove-box insulation in Hercules research, QC, and propellant-development labs

Plants by State

Hercules operated chemical, naval-stores, ordnance, and rocket-propulsion plants across multiple U.S. states. Detailed premises information is available on the following state jobsite pages:

Workers Exposed

Plaintiffs allegedly worked at Hercules Wilmington DE, Hattiesburg MS, Radford VA, Kenvil / Parlin NJ, Louisiana MO, and other Hercules and Hercules-Alliant/ATK facilities in trades including:

  • Insulators (HFIAW) applying and removing asbestos pipe covering and block on steam mains, reactors, naval-stores stills, and propellant-line piping
  • Pipefitters (UA) breaking asbestos-gasketed flanges on reactors, stills, columns, autoclaves, and process piping
  • Boilermakers rebuilding asbestos-refractory-lined powerhouse boilers and process furnaces
  • Millwrights servicing chemical pumps, mixers, centrifuges, and propellant-casting equipment
  • Bricklayers (BAC) laying asbestos refractory brick in naval-stores stills and propellant-processing ovens
  • Electricians and IBEW workers on asbestos-lined plant switchgear and motor-control centers
  • Sheet metal workers (SMART) on plant HVAC, dryer ductwork, and propellant-bay ventilation
  • Hercules operators, chemists, propellant technicians, and maintenance personnel working around asbestos-fireproofed manufacturing halls and rocket-motor casing lines

If You Worked at Hercules

If you or a family member worked at a Hercules chemical, naval-stores, ammunition, or rocket-propulsion plant — Wilmington DE, Hattiesburg MS, Radford VA, Kenvil / Parlin NJ, Louisiana MO, or any other Hercules, Hercules Aerospace, Alliant Techsystems (ATK), or Ashland-legacy facility — before 1980 and have been diagnosed with mesothelioma, lung cancer, asbestosis, or another asbestos-related disease, you may have a legal claim.

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