Cominco Monoply Spray Fireproofing
Product Description
Cominco Monoply was a spray-applied fireproofing material manufactured by US Mineral Products Company and distributed under the Cominco trade name. Available records place its production and use between approximately 1963 and 1971, a period during which spray-applied fireproofing became a dominant method for protecting structural steel in commercial, industrial, and institutional construction projects across the United States.
During this era, spray-applied fireproofing represented a significant technological shift in the construction industry. Rather than encasing steel columns and beams in masonry or poured concrete, contractors could apply a lightweight fibrous coating directly to structural steel using pneumatic spray equipment. This approach reduced construction time and costs considerably, making products like Cominco Monoply attractive to building contractors and industrial facility operators throughout the 1960s.
US Mineral Products Company was a New Jersey-based manufacturer that produced a range of spray-applied fireproofing and acoustical products during this period. The company’s product lines, including those sold under the Cominco name, were applied in buildings across multiple industries, including manufacturing facilities, power generation plants, commercial office towers, and public infrastructure projects. The relatively short production window of 1963 to 1971 roughly coincides with growing regulatory and scientific scrutiny of asbestos in building materials, which ultimately drove manufacturers to reformulate or discontinue asbestos-containing fireproofing products.
Asbestos Content
Litigation records document that Cominco Monoply contained asbestos as a functional component of its spray-applied fireproofing formulation. Plaintiffs in asbestos litigation have alleged that asbestos fibers were incorporated into the product’s composition during the years it was manufactured and sold, consistent with industry-wide practices of the period.
Spray-applied fireproofing products of this era routinely relied on asbestos—most commonly chrysotile, amosite, or combinations of fiber types—because asbestos provided exceptional thermal resistance, structural cohesion after spraying, and light weight relative to alternative fireproofing approaches. These physical properties made asbestos a technically appealing ingredient for manufacturers competing in the growing spray fireproofing market of the 1960s.
Litigation records further document that the asbestos content of spray fireproofing materials like Cominco Monoply was not prominently disclosed to workers or building owners at the time of application. Product labeling practices of the period frequently omitted hazard warnings regarding asbestos fiber release during mixing, spraying, or any subsequent disturbance of the applied material. Plaintiffs have alleged that US Mineral Products Company and affiliated distributors possessed, or reasonably should have possessed, knowledge of asbestos health hazards during the production years of this product.
The presence of asbestos in spray-applied fireproofing formulations from this period has also been documented in the context of AHERA (Asbestos Hazard Emergency Response Act) regulations, which established inspection and management protocols for asbestos-containing materials in schools and public buildings—many of which received spray fireproofing applications during the 1960s.
How Workers Were Exposed
Industrial workers and construction tradespeople encountered Cominco Monoply through several distinct phases of the product’s lifecycle, each presenting documented potential for asbestos fiber exposure.
During Application: Workers operating spray equipment mixed dry fireproofing material with water and applied it under pressure to structural steel surfaces. Litigation records document that this process generated significant quantities of airborne dust containing asbestos fibers. Applicators worked in close proximity to the spray nozzle and freshly applied material, often in enclosed or partially enclosed spaces with limited ventilation. Bystander workers—including ironworkers, electricians, pipefitters, and other tradespeople working in the same areas—were also present during application and were exposed to airborne fibers without necessarily working directly with the product.
During Mixing and Preparation: Workers who opened and emptied bags of dry spray fireproofing compound were exposed to fiber-laden dust released during the mixing process. Plaintiffs have alleged that this preparatory work, often performed by laborers and helpers, resulted in concentrated short-duration exposures that were repeated across multiple workdays and project sites.
During Disturbance and Removal: Once applied and cured, spray fireproofing coatings remained on structural steel for the life of the building unless disturbed. Renovation, retrofit, demolition, and maintenance activities—including the installation of new mechanical systems, electrical conduit, or plumbing—frequently required workers to cut through, break apart, or remove existing fireproofing. Litigation records document that these disturbance activities released asbestos fibers at high concentrations, as the dried and friable material crumbled readily under mechanical pressure.
Industrial Settings: The general category of industrial workers exposed to this product reflects the wide range of facilities where Cominco Monoply was applied. Workers in manufacturing plants, processing facilities, and power stations encountered the product both during original construction and during subsequent maintenance cycles spanning decades after initial application. Because asbestos-containing spray fireproofing does not degrade uniformly, industrial maintenance workers continued to encounter in-place material well into the 1980s and 1990s.
Asbestos-related diseases including mesothelioma, lung cancer, asbestosis, and pleural disease have latency periods ranging from ten to fifty years following initial exposure. Workers exposed to Cominco Monoply during the product’s active years of use are therefore within medically recognized windows for disease onset and diagnosis.
Documented Trust Fund / Legal Options
Cominco Monoply is a Tier 2 litigated product. No dedicated asbestos bankruptcy trust fund has been established specifically for claims arising from this product under US Mineral Products Company. Individuals seeking compensation for asbestos-related illness linked to Cominco Monoply exposure should pursue claims through civil litigation rather than trust fund submission.
Civil Litigation Pathway
Litigation records document that claims related to spray-applied fireproofing products from this era have been filed in state and federal courts throughout the United States. Plaintiffs have alleged negligence, failure to warn, strict products liability, and breach of implied warranty in cases involving spray fireproofing exposure. Cases have named manufacturers, distributors, and in some instances premises owners who permitted application of asbestos-containing fireproofing without adequate worker protections.
What Claimants Should Document
Workers or surviving family members pursuing claims related to Cominco Monoply exposure should gather and preserve the following categories of information:
- Employment records identifying worksites and job classifications during the 1963–1971 production period and subsequent years of potential disturbance
- Medical records confirming an asbestos-related diagnosis, including pathology reports and imaging
- Witness statements or co-worker affidavits confirming presence of spray fireproofing at specific job sites
- Union records, apprenticeship documentation, or contractor payroll records establishing work history
Additional Trust Fund Consideration
Where exposure to Cominco Monoply occurred alongside exposure to products manufactured by companies that subsequently entered bankruptcy and established asbestos trusts—such as companies associated with amosite-containing fireproofing or related insulation products—separate trust fund claims may be available in addition to civil litigation. An attorney experienced in asbestos litigation can evaluate overlapping exposure histories to identify all applicable compensation sources.
If you or a family member received a diagnosis of mesothelioma, asbestosis, or another asbestos-related condition and worked with or around spray fireproofing materials, consult a qualified asbestos attorney to evaluate your legal options. Statutes of limitations vary by state and begin running from the date of diagnosis.