Pabco Pipe Covering and Block Insulation

Product Description

Pabco pipe covering and block insulation were thermal insulation products manufactured by Fibreboard-Pabco, the insulation and building products division of Fibreboard Corporation. Fibreboard operated under several trade names throughout its history, with the Pabco brand becoming closely associated with a range of industrial insulation products designed for high-temperature applications in refineries, chemical plants, power generation facilities, shipyards, and manufacturing installations across the United States.

Pipe covering referred to pre-formed, curved insulation sections engineered to wrap directly around piping systems of specific diameters, creating a tight thermal barrier around hot or cold lines. Block insulation, by contrast, consisted of flat or shaped rigid sections cut and fitted around irregular equipment surfaces such as boilers, turbines, pressure vessels, tanks, and industrial furnaces. Both product forms were sold as part of Fibreboard-Pabco’s broader insulation line and were marketed to contractors and industrial facilities where managing extreme temperatures was essential to safe and efficient operation.

Fibreboard Corporation was a major participant in the mid-twentieth century insulation market. Its Pabco products competed with similar offerings from manufacturers such as Johns-Manville, Owens-Illinois, and Armstrong. The widespread industrial construction boom following World War II created sustained demand for products like Pabco pipe covering and block insulation, and these materials were installed extensively in commercial and heavy industrial settings throughout that era.

Asbestos Content

Pabco pipe covering and block insulation contained asbestos as a primary functional ingredient. Asbestos mineral fibers—valued for their resistance to heat, flame, and chemical degradation—were incorporated into the binding matrix of these insulation products to give them the physical properties required for industrial service. Pipe covering and block insulation products of this type typically relied on asbestos as a structural component that allowed the material to withstand the continuous thermal stress of industrial piping and equipment without crumbling, cracking, or losing insulating efficiency.

The use of asbestos in insulation products of this class was common industry practice during the decades when Pabco products were actively manufactured and sold. Fibreboard Corporation’s involvement with asbestos-containing products has been extensively documented through regulatory proceedings, corporate litigation, and the establishment of the Fibreboard Corporation Asbestos PI Trust, which was created specifically to address claims arising from exposure to the company’s asbestos-containing product lines, including Pabco-branded insulation materials.

How Workers Were Exposed

Workers who handled, installed, maintained, or removed Pabco pipe covering and block insulation faced exposure to asbestos fibers at multiple stages of the product’s lifecycle. Industrial settings where these products were used were among the most hazardous environments for asbestos fiber release.

Installation workers and insulators were among those with the most direct and sustained contact. Fitting pipe covering required cutting pre-formed sections to length and trimming them to match elbows, flanges, valves, and other fittings. Block insulation required scoring, breaking, and shaping rigid sections to conform to irregular equipment surfaces. Each of these operations—performed without adequate respiratory protection during most of the decades these products were in use—released asbestos dust into the breathing zone of workers performing the task and those working nearby.

Industrial maintenance workers encountered Pabco insulation during routine upkeep and repair of piping systems and process equipment. Accessing pipe joints or equipment components for inspection or repair often required removing existing insulation sections by hand, generating significant fiber release from aged and brittle material. Workers who regularly broke open old insulation covers or stripped block sections from equipment surfaces accumulated substantial cumulative exposure over the course of their careers.

Boilermakers, pipefitters, and steamfitters working in refineries, chemical processing plants, and power stations frequently worked in close proximity to insulated systems. Even workers who did not directly handle the insulation material were exposed as bystander workers when nearby cutting, fitting, or removal work was underway.

Shipyard workers represented another significant exposure population. Naval and commercial shipbuilding relied heavily on pipe covering and block insulation for machinery spaces, engine rooms, and steam lines, and Fibreboard-Pabco products were among those used in shipyard environments during peak production periods.

The risk associated with these products was compounded by the nature of industrial worksites, where multiple trades operated simultaneously in enclosed or poorly ventilated spaces. Asbestos fibers released during insulation work in these environments did not remain confined to the immediate work area, exposing all workers present regardless of their specific trade or assigned task.

Documented Trust Fund / Legal Options

Fibreboard Corporation filed for bankruptcy protection in part due to the volume of asbestos personal injury litigation it faced, and as part of the resolution of that bankruptcy, the Fibreboard Corporation Asbestos PI Trust was established. This trust was created to provide compensation to individuals who sustained asbestos-related injuries as a result of exposure to Fibreboard Corporation’s asbestos-containing products, expressly including Pabco pipe covering and block insulation.

The Fibreboard Corporation Asbestos PI Trust is a Tier 1 resource for individuals injured by these products, meaning eligible claimants may pursue compensation through the trust’s administrative claim process without the requirement of active civil litigation. The trust operates according to established Trust Distribution Procedures (TDP), which define eligible disease categories, documentation requirements, and claim evaluation criteria.

Eligible disease categories recognized under asbestos trust claim procedures of this type generally include:

  • Mesothelioma — a malignant cancer of the lining of the lungs, abdomen, or heart, specifically associated with asbestos exposure
  • Lung cancer — where asbestos exposure is documented as a contributing factor
  • Asbestosis — a progressive, fibrotic lung disease caused by accumulated asbestos fiber inhalation
  • Other asbestos-related conditions — including pleural disease and pleural plaques, evaluated under applicable trust criteria

To file a claim with the Fibreboard Corporation Asbestos PI Trust, claimants or their legal representatives typically must demonstrate a qualifying diagnosis, document occupational exposure to a Fibreboard or Pabco asbestos-containing product, and provide supporting medical and work history records.

Industrial workers, insulators, maintenance personnel, and others who worked with or around Pabco pipe covering and block insulation and have since been diagnosed with an asbestos-related disease are encouraged to consult with a qualified asbestos attorney to evaluate their eligibility and initiate the claims process. Trust fund claims may be pursued independently of or in coordination with litigation against other solvent defendants whose products contributed to an individual’s overall asbestos exposure history.