Products Used by Civilian Contractors

Civilian contractors worked at military bases, shipyards, power plants, factories, refineries, construction projects, government facilities, and other industrial worksites where asbestos-containing products were historically used.

Depending on the occupation, worksite, and time period, contractors could potentially encounter asbestos in insulation, gaskets, packing, fireproofing, flooring, roofing, cement products, electrical materials, friction products, and other heat-resistant materials.

Not every product used by civilian contractors contained asbestos. Product composition varied by manufacturer, product line, application, and year of manufacture.

For workers diagnosed with mesothelioma or another asbestos-related disease, identifying the specific products used during employment can be an important part of reconstructing historical exposure.

Why Civilian Contractors Used Asbestos Products

Asbestos was historically incorporated into certain commercial and industrial products because it offered useful properties such as:

Heat resistance
Fire resistance
Electrical insulation
Thermal insulation
Friction resistance
Chemical resistance
Durability

These characteristics resulted in asbestos being used in certain products associated with construction, machinery, steam systems, ships, vehicles, electrical systems, and industrial facilities.

Where Civilian Contractors Could Encounter Asbestos Products

Civilian contractors could potentially encounter historical asbestos-containing products at:

Military bases
Naval shipyards
Commercial shipyards
Ships
Power plants
Refineries
Chemical plants
Factories
Steel mills
Construction sites
Government buildings
Hospitals
Warehouses
Utility facilities
Machine shops
Maintenance facilities
Aircraft facilities
Vehicle maintenance facilities

The presence of a worker at one of these locations does not by itself establish asbestos exposure.

The products, equipment, tasks, dates, and surrounding work conditions should also be investigated.

Pipe Insulation Used by Civilian Contractors

Certain historical pipe insulation products contained asbestos.

Insulation could be installed around:

Steam lines
Hot-water pipes
Boiler piping
Turbine piping
Industrial process piping
Shipboard piping

Civilian contractors who installed, removed, repaired, cut, or worked near deteriorating insulation could potentially encounter asbestos fibers.

Boiler Insulation

Boilers frequently operated at high temperatures and required extensive thermal insulation.

Certain historical boiler insulation products could contain asbestos.

Civilian contractors might encounter insulation while:

Installing boilers
Repairing boilers
Removing boiler coverings
Replacing components
Performing maintenance
Demolishing old boiler systems

Boiler rooms could also contain asbestos products on connected pipes, valves, pumps, and steam systems.

Turbine Insulation

Steam turbines could operate at high temperatures.

Certain historical turbines and associated piping systems could be covered with asbestos-containing thermal insulation.

Civilian contractors could potentially encounter this material during:

Turbine maintenance
Turbine overhaul
Insulation removal
Equipment repair
Power plant shutdowns
Ship overhauls

Asbestos Gaskets Used by Civilian Contractors

Certain historical gaskets contained asbestos because the material could withstand heat, pressure, and chemical exposure.

Gaskets could be used with:

Pumps
Valves
Boilers
Turbines
Compressors
Engines
Pipe flanges
Industrial machinery

Machinists, mechanics, pipefitters, millwrights, maintenance workers, and other contractors could potentially handle gaskets during repair work.

Pump Gaskets

Pumps could require gaskets between housings, flanges, and connected components.

Potential contractor tasks included:

Opening pump housings
Removing old gaskets
Scraping gasket surfaces
Cutting replacement gaskets
Installing new gaskets
Reassembling pumps

Certain historical pump gaskets could contain asbestos.

Valve Gaskets

Industrial valves could use gaskets at connections or within valve assemblies.

Civilian contractors servicing valves could potentially disturb older gasket materials during maintenance and overhaul.

Not every valve gasket contained asbestos.

Flange Gaskets

Flanged piping connections were common in:

Steam systems
Power plants
Refineries
Ships
Chemical plants
Industrial facilities

Certain historical flange gaskets contained asbestos.

Removal of an old gasket could require scraping or cleaning the flange surface.

Asbestos Packing Products

Packing materials were historically used to help control leakage around moving components.

Certain packing products contained asbestos.

Applications could include:

Pumps
Valves
Compressors
Industrial machinery

Contractors could encounter packing during equipment repair and maintenance.

Pump Packing

Pump packing could be installed around rotating shafts.

Maintenance could involve:

Removing old packing
Cleaning the stuffing box
Installing replacement packing
Reassembling the pump

Certain historical packing materials could contain asbestos.

Valve Packing

Packing could also be installed around valve stems.

Pipefitters, machinists, mechanics, and maintenance contractors could potentially encounter packing while rebuilding valves.

Product composition should be verified rather than assumed.

Insulating Cement

Certain historical insulating cements contained asbestos.

These materials could be applied around:

Boilers
Pipes
Valves
Turbines
Industrial equipment

Insulating cement could be mixed, applied, repaired, removed, or disturbed during maintenance.

Fireproofing Products

Asbestos was historically incorporated into certain fire-resistant products.

Fireproofing could be used on:

Structural steel
Ceilings
Walls
Mechanical systems
Industrial structures

Construction, renovation, and demolition contractors could potentially work around these materials.

Spray-Applied Fireproofing

Certain historical spray-applied fireproofing products contained asbestos.

These materials could be applied to structural surfaces to improve fire resistance.

Later renovation or demolition could potentially disturb the material.

Asbestos Cement Products

Asbestos was historically combined with cement in certain construction products.

Examples could include:

Cement board
Siding
Roofing products
Pipe
Panels

Cutting, drilling, breaking, removing, or demolishing certain asbestos cement products could potentially release fibers.

Asbestos Cement Board

Certain historical cement boards contained asbestos.

Civilian construction contractors could encounter these products during:

Installation
Cutting
Drilling
Remodeling
Removal
Demolition

Product age and manufacturer can be important when researching composition.

Asbestos Siding Products

Certain historical siding products incorporated asbestos cement.

Contractors could potentially disturb siding while:

Cutting
Drilling
Removing
Replacing
Demolishing exterior walls

Not all siding contained asbestos.

Roofing Products

Certain historical roofing products contained asbestos.

Potential products included some:

Roofing felts
Roofing cement
Roof coatings
Shingles
Flashing materials

Roofers, construction workers, maintenance workers, and demolition contractors could potentially encounter these materials.

Floor Tile

Certain historical floor tiles contained asbestos.

These materials were installed in many commercial, government, military, and industrial buildings.

Contractors could potentially disturb old flooring while:

Removing tile
Breaking tile
Sanding floors
Renovating rooms
Demolishing buildings

Not every floor tile contained asbestos.

Flooring Mastic

Certain historical flooring adhesives and mastics contained asbestos.

These products could remain attached to floors after tile or sheet flooring was removed.

Potential disturbance could occur during scraping, grinding, renovation, or demolition.

Sheet Flooring

Certain older sheet-flooring products could contain asbestos in backing materials or other components.

Contractors involved in flooring removal or renovation could potentially encounter these materials.

Joint Compound

Certain historical joint compounds used in wall construction and finishing contained asbestos.

Potential contractor activities included:

Mixing
Applying
Sanding
Repairing
Removing
Demolishing walls

Dust-generating activities could potentially disturb asbestos when it was present in the product.

Ceiling Materials

Certain historical ceiling materials contained asbestos.

Potential products could include some:

Ceiling tiles
Acoustic materials
Textured coatings
Fire-resistant materials

Contractors performing renovation, electrical, HVAC, maintenance, or demolition work could potentially disturb these materials.

HVAC Insulation

Heating, ventilation, and air-conditioning systems could historically incorporate certain asbestos-containing materials.

Potential materials could be associated with:

Ducts
Boilers
Furnaces
Piping
Mechanical equipment
Heat-resistant connections

HVAC contractors and nearby trades could potentially encounter these products during installation, repair, and removal.

Duct Insulation

Certain historical duct insulation and wrapping materials contained asbestos.

Civilian contractors could potentially disturb them while:

Repairing ducts
Removing ductwork
Installing new HVAC equipment
Renovating mechanical spaces
Demolishing buildings

Electrical Insulation

Asbestos was historically incorporated into certain electrical and heat-resistant products.

Potential applications could include:

Electrical insulation
Arc-resistant components
Heat-resistant panels
Wiring-related materials
Electrical equipment components

Electricians and maintenance contractors could potentially encounter these products.

Switchgear Materials

Certain historical electrical switchgear incorporated heat-resistant insulating materials.

Civilian contractors repairing or replacing older electrical equipment could potentially encounter asbestos-containing components.

The specific equipment and component should be identified whenever possible.

Heat-Resistant Textiles

Certain historical textiles contained asbestos because of its resistance to heat and flame.

Potential applications included:

Protective cloth
Equipment coverings
Curtains
Blankets
Heat shields
Industrial fabrics

These materials could be used around welding, furnaces, boilers, ships, and industrial equipment.

Asbestos Cloth

Asbestos-containing cloth was historically used in certain high-temperature applications.

Civilian contractors could potentially encounter it around:

Boilers
Turbines
Pipes
Machinery
Welding areas
Industrial equipment

Asbestos Rope

Certain historical asbestos rope products were used for insulation, sealing, or high-temperature applications.

Potential locations could include:

Boilers
Furnaces
Industrial machinery
Ships
High-temperature equipment

Brake Products

Asbestos was historically used in certain friction products.

Brake components could be found on:

Cars
Trucks
Heavy equipment
Industrial machinery
Aircraft
Construction equipment

Civilian mechanics and maintenance contractors could potentially encounter older asbestos-containing brake materials.

Brake Linings and Brake Shoes

Certain historical brake linings and brake shoes contained asbestos.

Potential exposure could occur during:

Brake removal
Brake replacement
Cleaning
Grinding
Maintenance

Not every brake product contained asbestos.

Clutch Products

Certain historical clutch facings and related friction materials contained asbestos.

Civilian contractors repairing:

Vehicles
Heavy machinery
Industrial equipment
Construction equipment

could potentially encounter these materials.

Heat Shields

Certain historical heat shields and heat-resistant barriers contained asbestos.

Potential applications could include:

Engines
Aircraft
Vehicles
Industrial machinery
High-temperature equipment

The specific component and manufacturer should be identified whenever possible.

Furnace Products

Furnaces and high-temperature industrial systems could use certain asbestos-containing:

Insulation
Gaskets
Refractory materials
Heat-resistant components

Contractors could potentially encounter these products during repair, maintenance, or demolition.

Refractory Materials

Certain historical refractory products used around high-temperature equipment contained asbestos.

Potential locations included:

Boilers
Furnaces
Kilns
Industrial heating systems

Product formulation varied substantially.

Products Used on Ships and at Shipyards

Civilian contractors working at shipyards or aboard vessels could potentially encounter historical asbestos products associated with:

Pipe insulation
Boiler insulation
Turbine insulation
Pumps
Valves
Gaskets
Packing
Electrical systems
Marine machinery

Shipboard exposure should be investigated by vessel, compartment, task, equipment, and product.

Products Used at Military Bases

Civilian contractors working at military installations could potentially encounter asbestos products in:

Barracks
Boiler rooms
Powerhouses
Aircraft hangars
Hospitals
Maintenance shops
Warehouses
Utility buildings
Vehicle facilities

The military base itself does not establish exposure.

The specific building, project, task, equipment, and product should be identified.

Products Used in Power Plants

Power plants historically used certain asbestos-containing products around high-temperature steam and mechanical systems.

Potential products could include:

Pipe insulation
Turbine insulation
Boiler insulation
Gaskets
Packing
Electrical insulation
Fireproofing

Shutdowns and overhauls could involve multiple products being disturbed at the same time.

Products Used in Refineries and Chemical Plants

Refineries and chemical plants required materials capable of handling heat, pressure, and chemical environments.

Certain historical asbestos-containing products could be found around:

Pumps
Valves
Compressors
Piping
Boilers
Furnaces
Process equipment

Potential products included certain gaskets, packing, insulation, and heat-resistant materials.

Products Used in Construction

Civilian construction contractors could potentially encounter asbestos-containing products in:

Insulation
Fireproofing
Flooring
Roofing
Cement products
Joint compound
Ceiling materials
HVAC systems
Electrical systems

Exposure potential often increased when older materials were cut, sanded, drilled, removed, or demolished.

Products Used During Renovation

Renovation can be particularly important when reconstructing historical exposure because workers could disturb materials installed decades earlier.

Potential renovation activities included:

Removing insulation
Replacing flooring
Opening walls
Removing ceilings
Replacing HVAC systems
Replacing boilers
Replacing piping
Removing roofing

The date the building was originally constructed can be as important as the renovation date.

Products Disturbed During Demolition

Demolition contractors could encounter multiple historical building products during the same project.

Potential materials included:

Pipe insulation
Fireproofing
Floor tile
Roofing
Cement products
Joint compound
Ceiling materials
Mechanical insulation

Demolition at a particular building does not automatically establish that asbestos was present.

Products Used During Equipment Repair

Equipment maintenance could involve replacement of consumable components.

Examples included certain:

Gaskets
Packing
Seals
Insulation
Friction products

This distinction is important because the replacement product manufacturer might be different from the equipment manufacturer.

Original Products vs. Replacement Products

Equipment and buildings could remain in service for decades.

During that time, original components could be replaced many times.

For example, a pump manufactured by one company could later receive gaskets or packing manufactured by several other companies.

Exposure reconstruction should therefore distinguish between:

Original Equipment → Original Component → Replacement Component → Product Manufacturer

Product Manufacturer vs. Equipment Manufacturer

These are not necessarily the same company.

For example:

One company could manufacture a pump.
Another could manufacture the gasket.
Another could manufacture the packing.
Another could supply replacement insulation.

Identifying only the equipment manufacturer may therefore leave part of the exposure history unresolved.

Product Suppliers and Distributors

Civilian contractors could obtain materials from:

Industrial supply companies
Construction suppliers
Electrical suppliers
Plumbing suppliers
Shipyard supply departments
Government procurement systems
Contractor warehouses

Historical supplier records can sometimes help identify product brands and manufacturers.

Identifying Historical Asbestos Products

A worker may remember using a product but not remember its exact brand.

Product identification can sometimes be reconstructed using:

Worksite records
Purchase orders
Supply records
Equipment manuals
Parts lists
Construction specifications
Contractor records
Product catalogs
Historical photographs
Coworker statements

No single record should automatically be assumed to establish exposure.

Product Packaging and Labels

Workers may remember:

Product colors
Bags
Boxes
Labels
Logos
Packaging
Trade names

These details can sometimes help narrow down a possible manufacturer or product.

Memory should be compared with historical documentation whenever possible.

Construction Specifications

Building specifications can sometimes identify materials intended for:

Insulation
Flooring
Roofing
Fireproofing
Mechanical systems
Electrical systems

Specifications can provide useful historical evidence but do not necessarily prove the specified product was ultimately installed.

Equipment Manuals and Parts Lists

Historical equipment manuals may identify recommended:

Gaskets
Packing
Insulation
Replacement parts
Maintenance procedures

These records can help determine what products could have been associated with particular machinery.

Purchase and Supply Records

Purchase records may identify:

Product name
Manufacturer
Supplier
Quantity
Purchase date
Worksite

These records can be especially valuable when workers cannot remember product names decades later.

Coworker Product Identification

Former coworkers can sometimes help identify products used at a worksite.

They may remember:

Product brands
Packaging
Work practices
Equipment
Supply rooms
Contractors
Manufacturers

Coworker evidence can help supplement incomplete historical records.

Direct Product Exposure

Direct exposure could potentially occur when a civilian contractor personally:

Installed a product
Cut a product
Sanded a product
Removed a product
Scraped a gasket
Replaced packing
Removed insulation
Demolished material

Whether asbestos exposure occurred depends on whether the particular product contained asbestos.

Nearby Product Exposure

A contractor did not necessarily have to personally handle a product to potentially encounter fibers.

Workers could sometimes perform tasks near other trades disturbing asbestos-containing materials.

Examples could include working near:

Insulators
Pipefitters
Boilermakers
Demolition workers
Maintenance crews
Construction workers

The distance, timing, work practices, ventilation, and materials involved can matter.

Take-Home Exposure From Products

Historical workplace dust could potentially be carried home on:

Clothing
Shoes
Jackets
Tools
Personal belongings

When investigating possible take-home exposure, it is useful to identify the products and tasks that could have generated workplace dust.

Products and Civilian Contractor Occupations

Different occupations could encounter different products.

Potential occupations include:

Machinists
Millwrights
Mechanics
Pipefitters
Plumbers
Boilermakers
Insulators
Electricians
Welders
HVAC workers
Maintenance workers
Construction workers
Laborers
Vehicle mechanics
Aircraft mechanics
Sheet metal workers

Job title alone does not establish which products a worker encountered.

Building a Civilian Contractor Product Exposure Timeline

A strong product investigation can follow:

Employer → Contractor → Worksite → Dates → Occupation → Task → Equipment → Product → Manufacturer

For example:

Civilian Contractor Machinist

→ Power Plant

→ Pump Overhaul

→ Gasket Removal

→ Historical Gasket Product

→ Product Manufacturer

Another example:

Civilian Construction Contractor

→ Government Building

→ Renovation

→ Floor Removal

→ Historical Floor Tile or Mastic

→ Product Manufacturer

This approach connects the worker’s employment history to a specific potential exposure source.

Civilian Contractor Products and Mesothelioma

Mesothelioma is associated with asbestos exposure.

A former civilian contractor diagnosed with mesothelioma may investigate whether exposure could have occurred through historical products used during employment.

Potential evidence can include:

Employment history
Worksite history
Occupation
Tasks
Equipment
Products
Manufacturers
Coworker information
Medical records

A diagnosis does not by itself identify the source of exposure.

Civilian Contractor Products and Asbestos Lung Cancer

Historical occupational asbestos exposure can also be relevant in certain lung cancer cases.

Exposure investigation may include:

Work history
Products
Duration of employment
Worksite conditions
Other occupational exposures
Medical history

Other risk factors should also be documented.

Products and Mesothelioma Lawsuits

Some civilian contractor mesothelioma cases may involve companies associated with historical asbestos-containing products.

Potential investigation could involve manufacturers of certain:

Insulation
Gaskets
Packing
Fireproofing
Flooring
Roofing
Cement products
Friction products

Whether a legal claim is available depends on the evidence and applicable law.

Products and Asbestos Trust Fund Claims

Some companies that historically manufactured or supplied asbestos-containing products later entered bankruptcy and established asbestos trusts.

Potential trust claims generally require evidence meeting the particular trust’s requirements.

Identifying a product manufacturer can therefore be an important part of exposure reconstruction.

Products and Wrongful Death Claims

When a civilian contractor dies from mesothelioma or another asbestos-related disease, surviving family members may investigate the worker’s historical occupational exposure.

Potential records include:

Employment records
Social Security earnings records
Worksite records
Contractor records
Purchase records
Product records
Coworker statements
Medical records

Legal rights and deadlines vary by jurisdiction and circumstances.

Frequently Asked Questions About Products Used by Civilian Contractors

Did all products used by civilian contractors contain asbestos?

No.

Many products never contained asbestos, while the composition of others changed over time.

What products could historically contain asbestos?

Certain historical insulation, gaskets, packing, fireproofing, flooring, roofing, cement products, electrical materials, friction products, and other heat-resistant materials could contain asbestos.

Did all gaskets contain asbestos?

No.

Gasket composition varied by manufacturer, application, and time period.

Did all pipe insulation contain asbestos?

No.

Certain historical pipe insulation products contained asbestos, while others did not.

Could civilian contractors encounter asbestos in buildings?

Potentially.

Certain older buildings contained asbestos-containing construction and mechanical products.

Could contractors encounter asbestos while repairing machinery?

Potentially.

Certain historical machinery could incorporate asbestos-containing gaskets, packing, insulation, friction materials, or other components.

Could contractors encounter asbestos aboard ships?

Potentially.

Certain historical vessels contained asbestos products in mechanical, steam, electrical, and other systems.

Could military contractors encounter asbestos-containing products?

Potentially.

Civilian contractors could work in military facilities or on equipment where certain historical asbestos-containing products were present.

Can an equipment brand identify the asbestos product manufacturer?

Not necessarily.

The equipment and replacement product could have been manufactured by different companies.

How can old product brands be identified?

Historical purchase records, specifications, manuals, catalogs, photographs, packaging descriptions, and coworker statements may help.

Can family members reconstruct products used by a deceased worker?

Potentially.

Employment records, worksite records, coworkers, equipment documentation, purchase records, and other historical sources can help reconstruct exposure.

Related Civilian Contractor Asbestos Product Pages

More specific product research can include:

Civilian Contractor Pipe Insulation Asbestos Exposure

Civilian Contractor Boiler Insulation Asbestos Exposure

Civilian Contractor Turbine Insulation Asbestos Exposure

Civilian Contractor Gaskets Asbestos Exposure

Civilian Contractor Packing Asbestos Exposure

Civilian Contractor Insulating Cement Asbestos Exposure

Civilian Contractor Fireproofing Asbestos Exposure

Civilian Contractor Asbestos Cement Products Exposure

Civilian Contractor Floor Tile Asbestos Exposure

Civilian Contractor Flooring Mastic Asbestos Exposure

Civilian Contractor Roofing Products Asbestos Exposure

Civilian Contractor Joint Compound Asbestos Exposure

Civilian Contractor Ceiling Materials Asbestos Exposure

Civilian Contractor Electrical Insulation Asbestos Exposure

Civilian Contractor Brake Products Asbestos Exposure

Civilian Contractor Clutch Products Asbestos Exposure

Civilian Contractor Heat Shield Asbestos Exposure

Explore Civilian Contractor Jobs & Occupations

Civilian Contractor Jobs & Occupations Asbestos Exposure focuses on the worker and the work performed.

Examples include:

Machinists
Mechanics
Millwrights
Pipefitters
Boilermakers
Electricians
Insulators
Maintenance workers

The occupation hub answers:

What work did the civilian contractor perform?

Explore Civilian Contractor Equipment & Machinery

Civilian Contractor Equipment & Machinery Asbestos Exposure focuses on machinery such as:

Boilers
Pumps
Valves
Turbines
Compressors
Generators
HVAC equipment
Vehicles
Aircraft
Heavy machinery

The equipment hub answers:

What equipment did the civilian contractor work on?

Explore Civilian Contractor Buildings & Construction

Civilian Contractor Buildings & Construction Asbestos Exposure focuses on where asbestos-containing building products could have been installed or disturbed.

It includes construction, renovation, maintenance, and demolition activities.

Explore Civilian Contractor Shipyard & Maritime Exposure

Civilian Contractor Shipyard & Maritime Asbestos Exposure focuses on contractors working at shipyards, aboard ships, and around marine machinery and steam systems.

Explore Civilian Contractor Military Bases & Facilities

Civilian Contractor Military Bases & Facilities Asbestos Exposure focuses on civilian contractors working at military installations and facilities.

Explore Civilian Contractor Mesothelioma Lawsuits & Claims

Civilian Contractor Mesothelioma Lawsuits & Claims focuses on:

Exposure evidence
Mesothelioma lawsuits
Asbestos trust fund claims
Wrongful death claims
Filing deadlines
Potentially responsible companies

Civilian Contractor Product Exposure Path

The central research path is:

Civilian Contractor → Employer → Project → Worksite → Occupation → Task → Equipment → Product → Manufacturer

This structure helps separate four different questions:

Occupation: What work did the contractor perform?

Equipment: What machinery did the contractor work on?

Product: What material could have contained asbestos?

Manufacturer: Who made or supplied that particular historical product?

Separating these questions can produce a clearer historical exposure record.

Call 800.291.0963 — Open 24/7, 365 Days

MesotheliomaHelp.Center provides legal and medical information to help civilian contractors, workers, veterans, retirees, and families understand historical asbestos exposure, mesothelioma, occupational evidence, legal options, and possible next steps.