Harbison-Walker Refractories: Asbestos History & Liability

Company History & Asbestos Involvement

Harbison-Walker Refractories was founded in Pittsburgh, Pennsylvania in the latter half of the nineteenth century and grew into the largest manufacturer of refractory products in the United States. Refractories are heat-resistant materials used to line the interior walls, floors, and roofs of high-temperature industrial equipment — blast furnaces, open hearth furnaces, electric arc furnaces, coke ovens, glass-melting tanks, rotary kilns, and boilers. Without properly designed and maintained refractory linings, these vessels would fail rapidly under the extreme temperatures required for steel-making, cement production, glassmaking, and chemical processing.

Harbison-Walker's dominance in the refractory industry was built on a combination of proprietary raw material sources, extensive engineering expertise, and a nationwide sales and service network. The company operated multiple manufacturing plants across the United States, producing fired refractory brick, castable refractory mortars, plastic refractories, and specialty ceramic shapes. Its products were installed in virtually every major steel mill, foundry, coke oven battery, cement plant, and glass factory in the country. At the height of American industrial output in the mid-twentieth century, almost no steel was made in the United States without passing through equipment lined with Harbison-Walker refractory materials.

The connection between Harbison-Walker products and asbestos exposure lies primarily in the company's castable and plastic refractory products. While traditional fired brick refractories are composed of alumina, silica, magnesia, and similar refractory minerals without asbestos, many of Harbison-Walker's castable and plastic refractory products — which were mixed on-site and rammed or poured into place rather than installed as pre-formed bricks — incorporated chrysotile asbestos as a fibrous binder. The asbestos fibers served a practical engineering purpose: they helped prevent the castable material from cracking under the severe thermal cycling that furnace linings experience during heat-up and cool-down cycles. They also improved the workability of plastic refractory compounds, making them easier to tamp into irregular shapes and void spaces during installation.

Unfortunately, the same properties that made chrysotile asbestos an effective refractory additive also made it extremely hazardous to the workers who handled these products. Installing castable refractory required mixing the dry material with water — a process that raised clouds of asbestos-laden dust in confined furnace interiors. Demolishing old refractory linings during furnace relining operations was even more dangerous: aged castable that had been subjected to years of high heat became friable and crumbled readily, releasing stored asbestos fiber in quantities that could produce near-blinding dust conditions inside the furnace. Workers performing reline operations — typically in the hot, enclosed interior of a partially cooled furnace — faced some of the highest sustained asbestos exposure concentrations documented in any industrial setting.

The corporate history of Harbison-Walker is inseparable from the succession of acquisitions that eventually led to the establishment of the DII Industries Asbestos Trust. Dresser Industries, a Dallas, Texas-based industrial conglomerate with broad interests in oil field equipment, industrial instruments, and specialty materials, acquired Harbison-Walker Refractories as part of its strategy to build a diversified industrial products portfolio. With the acquisition, Dresser inherited not only Harbison-Walker's market position and manufacturing assets but also the growing asbestos liability that would eventually overwhelm the combined enterprise.

In 1998, Halliburton Company — one of the world's largest oilfield services and engineering firms, then led by CEO Dick Cheney — announced the acquisition of Dresser Industries. The $7.7 billion deal was one of the largest industrial mergers of the decade. Halliburton's due diligence identified Dresser's asbestos exposure as a significant risk, but the magnitude of that liability proved far greater than the merger analysis had anticipated. Within a few years of the Dresser acquisition closing, Halliburton was disclosing that its asbestos liability — traced primarily to Harbison-Walker refractory products through the Dresser corporate chain — had grown to a potentially company-threatening scale.

To address the liability, DII Industries, LLC — a Dresser Industries subsidiary — filed for Chapter 11 bankruptcy protection. The reorganization plan established the DII Industries, LLC Asbestos PI Trust to compensate all present and future claimants holding asbestos personal injury claims arising from Dresser and its subsidiaries, most significantly from Harbison-Walker refractory products. The trust became the primary vehicle through which workers and their families seek compensation for asbestos-related diseases linked to Harbison-Walker castable and plastic refractories.

Products & Exposure Mechanisms

Harbison-Walker Refractories produced an extensive line of refractory materials for high-temperature industrial applications. The asbestos-containing products in its catalogue were concentrated primarily in castable, plastic, and specialty refractory lines. The table below describes the major product categories, their asbestos content, the mechanisms through which exposure occurred, and the industrial settings where these materials were installed.

The exposure dynamics in refractory work were particularly severe because of the confined spaces in which installation and demolition work occurred. A furnace reline — in which workers entered a partially cooled furnace vessel to tear out the old lining and install new material — required working inside an enclosed steel shell that could still be radiating residual heat. Air circulation was typically poor, ventilation equipment was often inadequate, and the pace of work was driven by the pressure to return the furnace to production as quickly as possible. Workers in these conditions could be exposed to asbestos fiber concentrations that would be difficult to achieve even in a poorly controlled manufacturing environment.

Beyond the reline crews, workers throughout the steel mill and heavy industrial plant who were present when refractory installation or repair was occurring could be exposed as bystanders. Steel mill operations are highly interdependent: furnace operators, crane operators, production supervisors, maintenance electricians, millwrights, and other tradespeople routinely worked in the vicinity of furnaces undergoing repair. Asbestos dust generated during castable mixing, gunning, or demolition was not contained at the source and could migrate through the mill building to expose workers who were not directly involved in the refractory work itself.

Who Was Exposed to Harbison-Walker Asbestos?

The occupational groups exposed to Harbison-Walker asbestos refractory products were concentrated in the steel, metals, cement, and heavy manufacturing industries — sectors that required the continuous maintenance of refractory-lined high-temperature equipment. The following groups faced the most significant documented exposures.

Refractory installers and bricklayers who performed furnace reline work were the highest-risk occupational group. These workers — sometimes called "refractory mechanics" or "furnace men" — specialized in tearing out exhausted furnace linings and installing new refractory brick, castable, and plastic refractory materials. The reline cycle for a large steel-making furnace might occur every few months to a few years depending on the severity of service, meaning these workers performed demolition and installation operations repeatedly throughout their careers. Exposure during demolition of old asbestos-containing castable was particularly intense; the friable, heat-degraded material crumbled easily and released its stored asbestos fiber in large quantities.

Steel mill workers in all production roles were exposed to some degree through their proximity to refractory-lined equipment. Blast furnace operators, open hearth furnace operators, electric arc furnace operators, and basic oxygen furnace operators worked alongside and within these vessels throughout every shift. Over years and decades of service, the accumulated exposure from aging furnace linings that shed fiber as they degraded, combined with periodic heavy exposures during planned and emergency repairs, produced substantial cumulative fiber burdens in many steel workers.

Coke oven workers faced a distinctive exposure profile because coke oven batteries — the structures in which coal is converted to coke for steel-making — were extensively lined with Harbison-Walker refractory materials and required near-constant maintenance. Coke oven door repairs, oven wall patching, and the reconstruction of entire coke oven batteries were major consumers of castable and plastic refractory containing asbestos. Workers who maintained coke oven doors, crawled through oven chambers, or mixed and applied refractory patches to damaged oven walls were exposed to both asbestos from the refractory materials and the polycyclic aromatic hydrocarbons produced by the coking process — a dual exposure that significantly elevated their cancer risk.

Foundry workers in iron and non-ferrous metal foundries worked with cupola furnaces, induction furnaces, and pouring ladles that were lined with Harbison-Walker refractory products. The continuous cycle of pouring molten metal, cooling, recharging, and re-heating that characterizes foundry production created constant wear on refractory linings and required frequent patching and relining. Foundry workers who performed or were present during these repairs faced ongoing asbestos exposure throughout their working years.

Boilermakers and boiler mechanics who installed and maintained industrial boilers encountered Harbison-Walker insulating castable and refractory products during boiler construction, major overhaul, and tube replacement work. Industrial boiler work — whether in power plants, refineries, paper mills, or heavy manufacturing facilities — frequently required working inside boiler drums and fireboxes where refractory materials were applied and removed. The confined space character of this work concentrated whatever dust was generated during installation and demolition.

Industrial maintenance workers at facilities that used Harbison-Walker products — including paper mills, chemical plants, refineries, cement plants, and glass factories — performed routine repairs to process equipment lined with refractory materials. Even workers whose primary job function was not refractory installation could accumulate significant asbestos exposure over a career by routinely patching, grinding, or working near aging refractory-lined equipment.

Workers at Harbison-Walker manufacturing plants across the United States were also exposed through the production process itself. Plant workers who mixed raw materials, operated kilns, handled finished products, and maintained production equipment were in contact with asbestos-containing raw materials and finished products throughout their employment. While the number of manufacturing plant employees was smaller than the universe of downstream installation workers, plant workers typically had the longest continuous exposures over their careers.

The Dresser–Halliburton Corporate Chain & the DII Trust

Understanding why asbestos claims against Harbison-Walker Refractories are paid through the DII Industries Trust requires tracing the corporate acquisitions that connected an old Pittsburgh refractory company to one of the largest oilfield services corporations in the world.

Dresser Industries was a diversified industrial conglomerate based in Dallas, Texas with roots in the oil field equipment business. Over decades of acquisition activity, Dresser assembled a broad portfolio of industrial products businesses spanning measurement instruments, compression equipment, valve manufacturing, and construction and specialty materials. The acquisition of Harbison-Walker Refractories brought Dresser into the refractories market with a dominant national position — and with the substantial asbestos liability that Harbison-Walker's decades of castable and plastic refractory production had created.

As personal injury lawsuits from steel workers, foundry workers, and coke oven workers accumulated through the 1980s and 1990s, Dresser's Harbison-Walker liability grew steadily. The number of claimants was large because the products had been installed in heavy industrial facilities throughout the country, and because the diseases associated with refractory asbestos exposure — mesothelioma, lung cancer, asbestosis — have latency periods of 20 to 50 years, meaning that workers who had been exposed in the 1950s, 1960s, and 1970s were still developing and diagnosing disease decades later.

In 1998, Halliburton Company completed its $7.7 billion acquisition of Dresser Industries. The combination created one of the world's largest oil and gas services companies. The transaction, however, also transferred to Halliburton the full weight of Dresser's asbestos liability — a risk that the merger's financial modeling had underestimated. In the years following the acquisition, Halliburton disclosed in its SEC filings that asbestos-related claims were generating substantial ongoing payments and threatened to be materially larger than originally projected. The company's stock price suffered significantly as investors digested the liability disclosures.

The resolution came through the bankruptcy of DII Industries, LLC, a Dresser subsidiary, which filed for Chapter 11 protection specifically to address the asbestos liability inherited from Harbison-Walker and other Dresser operations. The bankruptcy reorganization plan was confirmed by the court and established the DII Industries, LLC Asbestos PI Trust to pay all present and future asbestos personal injury claims arising from the Dresser family of companies. The trust was funded through contributions from Halliburton and the reorganized DII entities and operates under a Trust Distribution Procedures document that governs how claims are evaluated, valued, and paid.

The DII Industries Trust represents one of the larger asbestos trusts established in the United States, reflecting the scale of the occupational exposure that Harbison-Walker refractory products created in the American industrial workforce over more than a century of operation. Workers and their survivors who can demonstrate exposure to Harbison-Walker products and a qualifying asbestos-related medical diagnosis may submit claims to the trust through the standard administrative process, typically with the assistance of an experienced asbestos attorney.

DII Industries Trust: Status & How to File a Claim

The DII Industries, LLC Asbestos PI Trust is the primary legal mechanism through which individuals diagnosed with asbestos-related diseases from Harbison-Walker refractory product exposures seek compensation. The trust was established as part of the Chapter 11 bankruptcy reorganization of DII Industries, which filed for protection in order to address the enormous volume of claims arising from Dresser Industries' ownership of Harbison-Walker Refractories. The trust operates under court-approved Trust Distribution Procedures (TDP) that govern every aspect of claim submission, review, and payment.

Qualifying Conditions

The DII Industries Trust compensates claimants who have been diagnosed with any of the following asbestos-related conditions and who can establish exposure to a qualifying Dresser or Harbison-Walker product: mesothelioma (all subtypes), lung cancer with documented asbestos exposure history, other cancers potentially related to asbestos exposure (laryngeal, esophageal, gastrointestinal), asbestosis, and pleural conditions including pleural plaques, diffuse pleural thickening, and pleural effusion. Each disease category is assigned a scheduled value under the TDP, with mesothelioma receiving the highest scheduled value reflecting the severity and universally fatal prognosis of that disease.

Documenting Harbison-Walker Exposure

Establishing exposure to a Harbison-Walker refractory product is central to a successful DII Trust claim. The trust's TDP requires claimants to identify the specific product or product type they were exposed to, the location and time period of exposure, and their occupational role during the exposure. Accepted forms of documentation include:

• Employment records showing work at a steel mill, foundry, coke plant, cement plant, glass factory, or other facility that used Harbison-Walker products;
• Union records establishing membership in the United Steelworkers, International Association of Bridge Structural Ornamental and Reinforcing Iron Workers, Boilermakers union, or other trades that performed refractory work at industrial facilities;
• Co-worker or foreman affidavits identifying Harbison-Walker brand refractory products (Mizzou, Kastolite, and other H-W brand names) at specific job sites during specific time periods;
• Product purchase records, contractor invoices, or facility maintenance records identifying Harbison-Walker as the refractory supplier;
• Social Security earnings records corroborating the claimant's employment history at facilities known to use H-W products.

An experienced asbestos attorney who handles DII Trust claims will know which Harbison-Walker product lines contained asbestos, which facilities were known users of these products, and what forms of product identification evidence the trust's administrators find most persuasive. This expertise can be the difference between a quickly approved claim and a prolonged back-and-forth over documentation.

Other Trusts That May Apply

Workers who were exposed to Harbison-Walker refractory products in heavy industrial settings almost always had additional asbestos exposures from other manufacturers' products. A steel mill worker who was exposed to Harbison-Walker castable during furnace relines also encountered pipe insulation, boiler insulation, gaskets, packing, and other asbestos products from dozens of other manufacturers throughout the plant. This means that a claimant filing against the DII Industries Trust for Harbison-Walker exposure may also be eligible to file claims against the Manville Trust, the Owens Corning/Fibreboard Trust, the Eagle Picher Trust, and many other asbestos trusts depending on their full exposure history. Coordinating multi-trust filings is a core competency of an asbestos specialty law firm and can substantially increase total recovery.

Time Limits

Statutes of limitations for asbestos trust claims vary by state but generally run two to three years from the date of diagnosis or from the date the claimant knew or reasonably should have known that their condition was caused by asbestos exposure. These deadlines apply to DII Trust claims just as they do to lawsuits, and they are enforced by the trust's administrators. Anyone recently diagnosed with mesothelioma or another asbestos-related disease with a history of employment in steel, foundry, coke, or other heavy industrial work should seek legal advice promptly — delay risks permanent loss of compensation rights.

Frequently Asked Questions