Mesothelioma Lawyer Missouri: Asbestos Exposure at Caterpillar Inc.’s Aurora, Illinois Manufacturing Plant

If You’ve Been Diagnosed, Time Is Already Working Against You

If you worked at Caterpillar Inc.’s Aurora, Illinois manufacturing plant and you’ve just been diagnosed with mesothelioma, asbestosis, or lung cancer, the first thing you need to know is this: Missouri law gives you five years from your diagnosis date to file a claim. Not five years from when you think you were exposed. Five years from diagnosis—and that clock is running now.

Workers at the Aurora facility may have been exposed to asbestos-containing materials for decades without adequate warnings or safety protections. If that’s your situation, a qualified asbestos attorney Missouri can help you recover compensation from the companies that manufactured and sold those materials. This article explains who was at risk, what products were allegedly present, how exposure occurs, and how to protect your family’s financial future through legal action.

This article is for informational purposes only and does not constitute legal advice. Consult a qualified asbestos attorney immediately.

Missouri Filing Deadline: Five Years — No Exceptions

Missouri law provides a five-year statute of limitations for asbestos personal injury claims under Mo. Rev. Stat. § 516.120, measured from the date of diagnosis—not from the date of exposure. Given that mesothelioma typically develops 20 to 50 years after initial asbestos exposure, many workers are already working against a compressed timeline by the time they receive a diagnosis.

Pending legislation, including HB1649, proposes stricter trust fund disclosure requirements for cases filed after August 28, 2026. Whether or not that bill passes, waiting costs you. Evidence gets harder to gather. Witnesses become unavailable. Trust funds that pay claims without litigation have finite assets and periodically reduce payment rates as claims accumulate.

Do not wait. Contact an experienced mesothelioma lawyer Missouri today.

What Was the Caterpillar Aurora Plant?

Caterpillar Inc. and Its Illinois Manufacturing Legacy

Caterpillar Inc.—formed through the 1925 merger of Holt Manufacturing Company and C.L. Best Tractor Co.—grew into one of the world’s largest industrial manufacturers, producing:

Construction and mining equipment
Diesel and natural gas engines
Industrial gas turbines
Diesel-electric locomotives

The company operated major Illinois facilities in Peoria, Decatur, East Peoria, Joliet, and the broader Chicago metropolitan area, including operations in Aurora—a heavy manufacturing hub approximately 40 miles west of Chicago in Kane and DuPage counties.

Why Asbestos-Containing Materials Were Used at Industrial Plants

From roughly the 1930s through the late 1970s—and in some cases into the 1980s—the Aurora facility and comparable industrial plants reportedly relied on asbestos-containing materials throughout their operations. Plant engineers and procurement managers selected these materials because asbestos fibers:

Withstand temperatures exceeding 1,000°F without degrading
Resist most industrial chemicals
Insulate against electrical current
Were inexpensive and widely available before safer alternatives existed

The Aurora facility’s high-temperature furnaces, steam and hydraulic systems, boilers, and electrical systems were all allegedly insulated, wrapped, or protected using asbestos-containing products—reportedly sourced from manufacturers including Johns-Manville Corporation and Owens-Illinois during its operational history.

The Regulatory Timeline That Came Too Late

Federal action to restrict asbestos-containing materials arrived long after widespread industrial exposure had already occurred:

1971 — OSHA establishes first permissible exposure limits for asbestos
1972 — OSHA begins requiring airborne asbestos monitoring in workplaces
1976 — Toxic Substances Control Act enacted, giving EPA regulatory authority
1986 — Asbestos Hazard Emergency Response Act signed into law
1989 — EPA attempts near-total ban on asbestos products (partially overturned in 1991)

Workers employed at Aurora before and during these regulatory transitions may have been exposed to asbestos-containing materials without proper warnings, protective equipment, or safety protocols in place.

Who Was at Risk? Trades and Job Classifications

Insulators and Insulation Workers

Insulators faced among the highest documented exposure risks in any industrial setting. Their work required them to:

Wrap pipes, boilers, and furnaces with asbestos-containing pipe and block insulation
Apply and remove asbestos-containing insulating cements and adhesives
Install and repair asbestos-containing blankets and jacketing on high-temperature systems
Strip deteriorated asbestos-containing insulation during plant renovations

Every cut, every trim, every removal of asbestos-containing insulation releases airborne fibers. Insulators were exposed both to materials they handled directly and to fibers released by other trades working in the same space.

Pipefitters and Plumbers

Pipefitters and plumbers at the Aurora facility may have been exposed through:

Working with asbestos-containing pipe insulation on steam and hot water lines
Handling asbestos-containing gaskets used to seal flanged pipe connections
Applying and removing asbestos-containing packing material in valves and pumps
Working in confined pipe chases where asbestos-containing insulation had deteriorated

Pipefitter work routinely required disturbing existing insulation to access, repair, or replace pipe sections and fittings. There was no way to do the job without disturbing those materials.

Boilermakers

The Aurora plant’s steam boiler systems were central to facility operations. Boilermakers may have been exposed when:

Installing and maintaining boilers allegedly wrapped in asbestos-containing insulation products from Johns-Manville and similar manufacturers
Replacing asbestos-containing refractory cement and gasket materials inside and around boilers
Cutting and fitting asbestos-containing rope packing and door gaskets
Working in boiler rooms where accumulated asbestos dust from deteriorating insulation was present

Boilermaker work is inherently dusty and routinely occurs in confined or poorly ventilated spaces—conditions that dramatically increase airborne fiber concentration.

Electricians

Asbestos appeared extensively in electrical systems of this era. Electricians at the Aurora facility may have been exposed through:

Handling asbestos-containing electrical cloth, wiring insulation, and arc chutes in switchgear
Working around panel boards and electrical rooms allegedly containing asbestos-containing products
Drilling or cutting through walls and ceiling assemblies that may have contained asbestos-containing materials
Working in proximity to other trades actively disturbing asbestos-containing materials

Maintenance Workers and Millwrights

Maintenance workers had broad exposure potential because their duties took them throughout the entire plant. They may have been exposed when:

Repairing and replacing asbestos-containing gaskets on machinery and equipment
Removing and replacing asbestos-containing floor and ceiling tiles during facility repairs
Cleaning accumulated asbestos dust and debris—often without adequate respiratory protection
Performing building system work that disturbed asbestos-containing materials

Production Workers and Machinists

Workers who never directly handled asbestos-containing materials were still at risk through bystander exposure. Asbestos fibers released by insulators, boilermakers, pipefitters, and maintenance workers travel across large manufacturing floors, settling on nearby workers who had no idea they were being exposed. Courts have consistently recognized bystander exposure as a valid basis for asbestos claims.

Sheet Metal Workers

Sheet metal workers at the Aurora facility may have been exposed when:

Cutting and installing ductwork lined with asbestos-containing insulation materials
Working around asbestos-containing duct insulation and fireproofing materials applied to structural steel and building components

Asbestos-Containing Products Allegedly Present at the Aurora Facility

Based on operations conducted at the Aurora plant and products documented in comparable industrial manufacturing exposure cases, the following categories of asbestos-containing materials were allegedly present.

Pipe and Block Insulation

Pipe and block insulation formed the backbone of industrial thermal insulation systems throughout this period. Products from the following manufacturers were widely used in industrial plants during the relevant decades and may have been present at the Aurora facility:

Johns-Manville Corporation — Produced asbestos-containing pipe and block insulation products
Owens-Illinois (later Owens Corning) — Manufactured asbestos-containing insulation materials
Eagle-Picher Industries — Produced asbestos-containing insulation products
Fibreboard Corporation — Manufactured asbestos-containing insulation materials
Philip Carey Manufacturing Company — Produced asbestos-containing insulation products

Workers at the Aurora facility may have been exposed to asbestos-containing pipe insulation from these and other manufacturers when cutting, fitting, or removing these materials.

Gaskets and Sealing Materials

Industrial gaskets—flat sealing materials used at pipe flanges, valve bonnets, and equipment covers—were commonly manufactured from compressed asbestos fiber sheets during the relevant period. Manufacturers whose products were widely distributed to industrial facilities included:

Garlock Sealing Technologies — Produced asbestos-containing gasket materials
Flexitallic Gasket Company — Manufactured asbestos-containing gaskets
Armstrong World Industries — Produced asbestos-containing sealing products

Workers who cut, trimmed, or handled these asbestos-containing gaskets may have released asbestos fibers directly into their breathing zone.

Packing and Rope

Valve and pump packing—the rope-like or braided material sealing rotating shafts and valve stems—was frequently manufactured from asbestos during the relevant period. Pipefitters and maintenance workers who removed deteriorated asbestos-containing packing and installed replacement material may have been exposed to airborne fibers during that work.

Refractory Cements and Mortars

High-temperature refractory cements used to line furnaces, boilers, and kilns frequently contained asbestos. Manufacturers whose products were in widespread industrial use included:

A.P. Green Industries — Manufactured asbestos-containing refractory materials
H.B. Fuller Company — Produced asbestos-containing refractory cements

Workers who mixed, troweled, or removed these asbestos-containing cements may have been exposed to asbestos dust during that process.

Insulating Cements and Finishing Compounds

Insulating cements applied as finish coats over pipe and block insulation frequently contained asbestos and released fibers during both application and removal. Workers who applied these finishing layers by hand were in direct, prolonged contact with the material.

Floor and Ceiling Tiles

Facilities of this era commonly used asbestos-containing vinyl floor tiles and asbestos-containing suspended ceiling systems. Renovation, repair, and removal work disturbed these materials and released fibers into occupied work areas.

Electrical Insulation and Arc Chutes

Asbestos-containing materials appeared throughout electrical equipment of this period, including:

Electrical cloth and tape containing asbestos fibers
Wiring insulation manufactured with asbestos-containing materials
Arc chutes in switchgear produced with asbestos-containing components

Spray-Applied Fireproofing

Asbestos-containing spray-applied fireproofing may have been applied to structural steel and building components at the Aurora facility—a common practice in industrial construction through the early 1970s that left residual asbestos-containing material in place for decades afterward.

How Asbestos Exposure Causes Disease

The Nature of Asbestos Fibers

Asbestos is a family of naturally occurring fibrous silicate minerals. When asbestos-containing materials are disturbed, damaged, or allowed to deteriorate, they release microscopic needle-like fibers into the air. These fibers cause disease through properties that make them uniquely dangerous:

Size — Individual fibers are invisible to the naked eye and penetrate deeply into lung tissue
Durability — Fibers resist the body’s immune response and persist in lung tissue for decades
Geometry — The needle-like shape causes chronic physical irritation and sustained inflammation
Mobility — Once inhaled, fibers migrate through the body and accumulate in the pleura, peritoneum, and other organ systems

Asbestos exposure is the established cause of mesothelioma. There is no safe level of asbestos exposure. Mesothelioma has no cure.

Routes of Exposure in Manufacturing Settings

Workers at the Aurora facility may have been exposed to asbestos fibers through four distinct pathways:

Mesothelioma Lawyer Missouri: Asbestos Exposure at Caterpillar Inc.'s Aurora, Illinois Manufacturing Plant