Armatemp Cement No. 166

Product Description

Armatemp Cement No. 166 was a specialty industrial cement manufactured by ACS (American Cement and Supply, also referenced in some records as ACS Manufacturing). The product was marketed and sold primarily for high-temperature industrial applications, including pipe insulation, refractory lining work, and spray-applied fireproofing. Products in the “Armatemp” line were designed to withstand extreme heat conditions and were commonly specified for use in facilities where thermal management and fire resistance were critical operational requirements.

Industrial settings that routinely used refractory cements and high-temperature insulating products of this type included steel mills, chemical processing plants, oil refineries, power generation facilities, and manufacturing operations running continuous-heat equipment. Armatemp Cement No. 166 was positioned within a broader category of industrial cements intended to protect structural components, pipe systems, and equipment from both heat damage and fire. The product’s name and numbering convention suggest it was one of several formulations offered within the Armatemp product line, each potentially tailored to specific temperature ratings or application methods.

Litigation records document that Armatemp Cement No. 166 was identified in asbestos personal injury lawsuits as a product encountered by workers in heavy industrial environments across multiple decades of the twentieth century.

Asbestos Content

Asbestos was a standard additive in many refractory cements, pipe insulation compounds, and spray-applied fireproofing materials produced during much of the twentieth century. Asbestos fibers — particularly chrysotile, amosite, and crocidolite — were valued by manufacturers for their thermal stability, tensile strength, and resistance to chemical degradation. These properties made asbestos-containing materials especially attractive for products like high-temperature cement formulations, where performance under sustained heat exposure was the primary selling point.

Litigation records document that plaintiffs alleged Armatemp Cement No. 166 contained asbestos as a component of its formulation. Plaintiffs alleged that the presence of asbestos in the product was not adequately disclosed to workers who handled, mixed, applied, or worked in proximity to the material. Court records further reflect allegations that ACS knew or should have known about the health hazards associated with asbestos exposure and failed to provide adequate warnings on product labeling or accompanying documentation.

Because Armatemp Cement No. 166 falls within the refractory, pipe insulation, and spray-fireproofing product categories — all of which are well-documented categories of asbestos-containing materials in both regulatory and litigation history — its identification in asbestos personal injury lawsuits is consistent with broader patterns established across the industry.

How Workers Were Exposed

Workers exposed to Armatemp Cement No. 166 were primarily those employed in industries that relied heavily on insulation, refractory maintenance, and fireproofing operations. The product’s categorization across three distinct application types — pipe insulation, refractory cement, and spray fireproofing — means that exposure pathways were varied and often occurred across different trades and job tasks.

Pipe insulation applications typically required workers to mix cement materials and apply them around pipe systems to reduce heat loss or protect piping from high ambient temperatures. Mixing dry cement powders or breaking apart pre-formed materials could release respirable dust containing asbestos fibers directly into the breathing zone of the worker performing the task, as well as bystanders nearby.

Refractory work involved lining furnaces, kilns, boilers, and other high-temperature vessels with heat-resistant materials. Workers applying refractory cements worked in confined or partially enclosed spaces where airborne fiber concentrations could accumulate rapidly without adequate ventilation. Maintenance and repair cycles — which required breaking out old refractory material before applying new coatings — were particularly hazardous, as deteriorated materials released fibers during demolition.

Spray-applied fireproofing created significant airborne fiber hazards. Spray application disperses fine particulate matter broadly across a work area, and workers in adjoining spaces — including ironworkers, electricians, plumbers, and other tradespeople working on the same job site — could be exposed even when they were not directly involved in the fireproofing operation itself. This bystander exposure dynamic is well-documented in asbestos litigation involving spray-applied products broadly.

Litigation records document that plaintiffs alleged occupational exposure to Armatemp Cement No. 166 occurred over extended periods, in some cases spanning years or decades of regular contact with the product. Industrial workers generally — including those in maintenance, construction, and production roles — are identified in litigation records as the primary exposed population. Plaintiffs alleged that the lack of warning labels, respiratory protection programs, or engineering controls at many worksites significantly increased the dose of asbestos fibers to which they were exposed during their careers.

Asbestos-related diseases linked to occupational exposure in these settings include mesothelioma, asbestos-related lung cancer, asbestosis, and pleural disease. These conditions typically have latency periods of twenty to fifty years between initial exposure and clinical diagnosis, meaning that workers exposed to products like Armatemp Cement No. 166 decades ago may only now be receiving diagnoses.

Armatemp Cement No. 166 is classified as a Tier 2 — Litigated product. No dedicated asbestos bankruptcy trust fund has been identified for ACS, the manufacturer associated with this product. Claims related to Armatemp Cement No. 166 are pursued through civil litigation in state and federal courts rather than through trust fund submission processes.

Litigation records document that personal injury and wrongful death lawsuits have been filed by plaintiffs who alleged exposure to Armatemp Cement No. 166 and subsequent development of asbestos-related disease. Plaintiffs alleged that the manufacturer and potentially other parties in the distribution and supply chain bore responsibility for failing to warn users of the hazards inherent in working with asbestos-containing cement products.

Individuals diagnosed with mesothelioma, asbestos-related lung cancer, asbestosis, or other asbestos-attributable conditions who have a work history involving Armatemp Cement No. 166 or similar ACS products may have legal remedies available through the civil court system. Because multiple manufacturers often contributed to asbestos exposure over a worker’s career, claims frequently involve multiple defendants and may run in parallel with trust fund claims against other companies whose products were also present at the same worksites.

Relevant considerations for potential claimants:

  • Documentation of exposure — including employment records, co-worker testimony, purchasing records, and product identification — is a central component of litigation involving Tier 2 products.
  • Statutes of limitations vary by state and generally begin to run from the date of diagnosis or the date a plaintiff knew or reasonably should have known of the connection between their illness and asbestos exposure.
  • Claimants should consult with an attorney experienced in asbestos litigation to evaluate their specific exposure history and determine which legal avenues apply to their situation.

Litigation against manufacturers of refractory cements, pipe insulation products, and spray-applied fireproofing materials has a well-established history in the American court system. Workers and their families affected by Armatemp Cement No. 166 are encouraged to seek legal counsel promptly given the time-sensitive nature of asbestos claims.