Pabco Caltemp Insulating Cement

Product Description

Pabco Caltemp Insulating Cement was an industrial insulating cement manufactured by Fibreboard-Pabco during the approximate period of 1950 through 1968. The product was designed for high-temperature applications in industrial settings, serving dual roles as both a pipe insulation material and a refractory product capable of withstanding extreme heat conditions. Caltemp Insulating Cement was applied in a wet or trowelable form, allowing workers to coat, seal, and finish pipe systems, boilers, furnaces, kilns, and other high-heat industrial equipment.

Insulating cements of this era were valued for their ability to be worked around irregular surfaces — pipe fittings, valves, elbows, and flanges — where rigid pre-formed insulation could not conform effectively. Once applied and dried, Caltemp formed a hard, heat-resistant shell intended to reduce heat loss, protect workers from contact burns, and maintain consistent operating temperatures in industrial process systems. The product was sold under the Pabco brand, which was among the recognized trade names associated with Fibreboard Corporation’s building and industrial products division during the mid-twentieth century.

The use period of 1950 to 1968 places Pabco Caltemp Insulating Cement squarely within the decades of peak industrial asbestos consumption in the United States, when asbestos-containing insulation materials were standard across refineries, power generation facilities, chemical plants, steel mills, and shipyards.


Asbestos Content

Pabco Caltemp Insulating Cement contained chrysotile asbestos as a primary component of its formulation. Chrysotile, also known as white asbestos, is a serpentine-form asbestos mineral that was the most widely used variety in industrial and commercial products throughout the twentieth century. In insulating cements, chrysotile served as both a reinforcing fiber and a thermal binder, contributing to the product’s structural integrity after drying and its resistance to high operating temperatures.

Insulating cements in general required asbestos content at significant concentrations to achieve the performance characteristics demanded by industrial applications. When the product was mixed from a dry state, applied wet, or disturbed during repair and removal operations, the chrysotile fibers within the cement were capable of becoming airborne. Chrysotile asbestos has been classified as a known human carcinogen by the International Agency for Research on Cancer (IARC) and is regulated by the U.S. Occupational Safety and Health Administration (OSHA) under its asbestos standards codified at 29 CFR 1910.1001 (general industry) and 29 CFR 1926.1101 (construction). No established safe level of asbestos fiber exposure has been identified by the relevant regulatory and scientific authorities.

The presence of asbestos in Caltemp and similar insulating cement products of this era is consistent with documented industry-wide manufacturing practices, as well as findings from litigation discovery, product identification databases, and historical manufacturer records.


How Workers Were Exposed

Industrial workers in a broad range of occupational settings encountered Pabco Caltemp Insulating Cement during its production years and in the decades that followed, as installed material aged, cracked, and required repair or removal. Exposure pathways included multiple stages of the product’s lifecycle.

Mixing and Application: Workers who mixed dry insulating cement or handled the product during application were exposed to airborne asbestos fibers released during the mixing process. Dry powdered insulating cement, when disturbed, generates dust that can carry respirable asbestos fibers. Troweling, shaping, and finishing the applied cement also created opportunities for fiber release.

Finishing and Fairing: After initial application, insulating cement required smoothing and finishing. These operations, often performed with hand tools or abrasive implements, could disturb the partially dried material and release fibers into the breathing zone of workers.

Maintenance, Repair, and Removal: As installed Caltemp aged in service, it became brittle and prone to cracking or spalling. Workers performing maintenance on insulated pipe systems, boilers, or furnace linings frequently broke away or chipped off old insulating cement before reapplying new material. These demolition and repair activities were documented as among the highest-exposure tasks associated with asbestos insulation products generally.

Bystander Exposure: Industrial workers who were not directly applying or removing the product but who worked nearby in enclosed or poorly ventilated industrial environments — including fellow pipefitters, boilermakers, millwrights, and general plant maintenance workers — were also subject to secondary or bystander asbestos exposure during periods when Caltemp was being mixed, applied, or disturbed.

The latency period for asbestos-related diseases, which commonly ranges from ten to fifty years following initial exposure, means that individuals exposed to Pabco Caltemp Insulating Cement during its production years of 1950 through 1968 may have developed related conditions in subsequent decades, including into the present era.


Pabco Caltemp Insulating Cement is classified as a Tier 2 litigated product. No dedicated asbestos bankruptcy trust fund has been established specifically to compensate claimants for exposures attributable to this product under the Fibreboard-Pabco manufacturer identity.

Litigation History: Litigation records document that plaintiffs diagnosed with asbestos-related diseases, including mesothelioma, asbestosis, and lung cancer, have named Fibreboard Corporation and associated Pabco-branded products in civil asbestos personal injury lawsuits. Plaintiffs alleged occupational exposure to Caltemp Insulating Cement and other Fibreboard-Pabco insulation products as a contributing cause of their diagnosed conditions. Litigation records further document that plaintiffs alleged the manufacturer knew or should have known of the health hazards associated with chrysotile asbestos and failed to adequately warn workers of those risks.

Civil Litigation Pathway: Individuals who believe they were exposed to Pabco Caltemp Insulating Cement and have subsequently been diagnosed with mesothelioma, asbestosis, lung cancer, or other asbestos-related conditions may pursue civil litigation against responsible parties. The viability of a specific claim depends on factors including the ability to document product identification, the locations and dates of exposure, the diagnosed condition, and applicable state statutes of limitations.

Secondary Trust Fund Claims: Although no Fibreboard-Pabco trust fund exists for this specific product exposure, attorneys handling asbestos claims routinely evaluate a claimant’s full work history to identify all potential sources of asbestos exposure. Workers who encountered Pabco Caltemp Insulating Cement frequently worked alongside other asbestos-containing products in the same industrial environments. Exposures to products covered by established asbestos bankruptcy trusts — such as those administered through the Manville Personal Injury Settlement Trust, the Pittsburgh Corning Corporation Asbestos PI Trust, or other active trusts — may provide additional avenues for compensation depending on individual circumstances.

Consulting Legal Counsel: Individuals diagnosed with an asbestos-related disease following potential exposure to Pabco Caltemp Insulating Cement are encouraged to consult with an attorney experienced in asbestos personal injury litigation. Legal professionals in this field can conduct product identification research, locate co-worker witnesses, review exposure documentation, and identify all applicable legal remedies across both trust fund claims and civil litigation channels.