Armaspray Spray Fireproofing

Product Description

Armaspray was a spray-applied fireproofing material manufactured by A-C-and-S (Asbestos Claims Service, formerly Armstrong Contracting and Supply Corporation) during a narrow production window spanning 1966 to 1968. The product belonged to the category of spray fireproofing materials that were widely used in commercial, industrial, and institutional construction during the mid-twentieth century. These spray-applied systems were engineered to coat structural steel components — beams, columns, and deck assemblies — with a layer of insulating material capable of slowing heat transfer during a fire event, thereby maintaining structural integrity and buying occupants additional evacuation time.

Spray fireproofing technology expanded rapidly during the postwar construction boom, as architects and engineers specified taller and more complex steel-frame structures. Armaspray was marketed for use in industrial settings where fire resistance requirements were particularly demanding. The product was applied by specialized contracting crews, meaning that its use was concentrated in worksites where large quantities of fireproofing were sprayed over relatively short project durations. A-C-and-S was itself a contracting and supply company, positioning Armaspray not merely as a product sold through distributors but as part of an integrated installation service.

Because Armaspray was produced for only two years, its distribution was geographically and temporally concentrated. Nevertheless, buildings erected or renovated during 1966–1968 that incorporated Armaspray may retain the material in place today, representing a potential source of ongoing fiber release if the product is disturbed during renovation, demolition, or routine maintenance activities.

Asbestos Content

Armaspray contained chrysotile asbestos as its primary reinforcing and insulating fiber. Chrysotile, sometimes called white asbestos, is a serpentine-group mineral characterized by its curly, flexible fibers. It was the most commercially prevalent form of asbestos used in construction products throughout the twentieth century, favored for its relative availability, its ease of integration into spray and paste formulations, and its effective fire-resistant properties.

In spray fireproofing applications, chrysotile fibers were typically blended with binders and other materials to create a cohesive coating that adhered to steel substrates and maintained its insulating characteristics under high-temperature conditions. The fibrous matrix of chrysotile was integral to the product’s performance — the same physical properties that made the fibers effective as a fire barrier also made them hazardous when airborne.

Chrysotile asbestos has been classified as a known human carcinogen by the International Agency for Research on Cancer (IARC) and is regulated as a hazardous material under the Occupational Safety and Health Administration (OSHA) asbestos standard (29 CFR 1910.1001 and 29 CFR 1926.1101) and under the Asbestos Hazard Emergency Response Act (AHERA). No form of asbestos, including chrysotile, has been established as having a safe level of occupational exposure.

How Workers Were Exposed

Industrial workers who were present on jobsites where Armaspray was applied represent the primary population documented to have faced exposure risk. The spray application process was inherently dust-generating: compressed air forced the asbestos-containing mixture through nozzles at high velocity, creating visible clouds of airborne particulate that could remain suspended in enclosed or semi-enclosed work environments for extended periods.

Workers directly operating spray equipment bore the heaviest exposure burden. However, industrial workers in adjacent trades — pipefitters, electricians, ironworkers, insulators, and general laborers — who worked in the same spaces at the same time were also at risk of inhaling fibers that drifted from active spray operations. This bystander exposure dynamic was characteristic of spray fireproofing work broadly and has been extensively documented in occupational health literature and litigation records.

Litigation records document that workers employed in the installation of Armaspray and similar spray fireproofing products often lacked adequate respiratory protection. Plaintiffs alleged that manufacturers and contractors failed to warn workers of the known hazards associated with airborne asbestos fibers during a period when the medical and scientific literature linking asbestos inhalation to asbestosis, lung cancer, and mesothelioma was already well established within industry circles. Plaintiffs further alleged that engineering controls sufficient to reduce fiber concentrations to safe levels were not consistently implemented at worksites where spray fireproofing was applied.

Exposure risk did not end with the original installation. Buildings constructed with Armaspray may still contain the material in a friable or potentially friable state. Maintenance workers, renovation contractors, and demolition crews who disturb Armaspray-containing assemblies without appropriate abatement procedures face secondary exposure risks that are subject to current OSHA and EPA regulatory requirements. Any disturbance of suspect spray-applied fireproofing in structures dating from 1966–1968 should be preceded by bulk sampling and laboratory analysis in accordance with AHERA-referenced protocols.

Armaspray is classified as a Tier 2 product for purposes of legal remedy, meaning that claims arising from exposure to this material are pursued through direct litigation rather than through an established asbestos bankruptcy trust fund. No dedicated trust fund exists for Armaspray claims. A-C-and-S underwent asbestos-related bankruptcy proceedings, and litigation records document that claims against the company have been pursued through the courts over multiple decades.

Plaintiffs alleged in civil litigation that A-C-and-S, as both manufacturer and installer of Armaspray, bore liability for asbestos-related injuries suffered by workers exposed to the product during its application and during subsequent disturbance of installed materials. Litigation records document claims alleging failure to warn, negligent manufacture, and breach of duty to provide a safe product and safe working conditions.

Individuals who were exposed to Armaspray and have subsequently been diagnosed with an asbestos-related disease — including mesothelioma, asbestos-related lung cancer, asbestosis, or pleural disease — may have legal options available to them. Because Armaspray was produced during a discrete and well-documented window (1966–1968), establishing product identification is a critical component of any claim. Work history records, union documentation, employer records, co-worker testimony, and building records identifying materials installed at specific jobsites have all been used in litigation to connect a diagnosed plaintiff to documented asbestos exposure.

Statutes of limitations for asbestos claims vary by state and generally begin running from the date of diagnosis rather than the date of exposure, reflecting the latency period — often measured in decades — between asbestos inhalation and disease onset. Anyone with a potential Armaspray exposure history should consult with an attorney experienced in asbestos litigation as promptly as possible following a relevant diagnosis, as delay can affect legal eligibility regardless of the merits of an underlying claim.

This article is provided for informational and reference purposes. It documents factual information about a specific asbestos-containing product based on litigation records, regulatory filings, and publicly available product documentation. It does not constitute legal advice.