Cafco Blaze-Shield Spray Fireproofing

Product Description

Cafco Blaze-Shield was a spray-applied fireproofing product manufactured by U.S. Mineral Products Company, a New Jersey-based manufacturer that produced a range of specialty construction materials throughout the mid-twentieth century. Sold under the Cafco brand, Blaze-Shield was widely marketed and applied to structural steel framing in commercial buildings, high-rise construction, industrial facilities, and institutional structures across the United States. The product was applied by trained spray crews and served a legitimate and code-required purpose: protecting steel columns, beams, and decking from rapid heat exposure during a fire, thereby slowing structural collapse and extending evacuation time.

Blaze-Shield entered the market in 1958 and continued production through 1972, a period of intense commercial and industrial construction in the United States. During those fourteen years, the product was installed in an enormous number of structures, including office towers, hospitals, schools, warehouses, and government buildings. Because the product was sprayed rather than pre-applied, it was deployed on active job sites during construction, placing applicators and nearby tradespeople in direct contact with airborne material during every application session.

In 1972, amended federal regulations and mounting scientific scrutiny of asbestos-containing spray materials prompted U.S. Mineral Products and other manufacturers to reformulate their fireproofing lines. The Environmental Protection Agency moved to restrict spray-applied asbestos products in public and commercial buildings under what would later become codified through the Asbestos Hazard Emergency Response Act (AHERA). Cafco Blaze-Shield was subsequently reformulated without asbestos, but the legacy installations from 1958 through 1972 remained in place in thousands of structures for decades afterward.

Asbestos Content

Cafco Blaze-Shield manufactured between 1958 and 1972 contained chrysotile asbestos as a primary component of its spray-applied formulation. Chrysotile, the most commercially prevalent form of asbestos, was valued in spray fireproofing applications for its heat resistance, binding properties, and the insulating matrix it created when mixed with a binder and applied under pressure.

In spray fireproofing products of this era, chrysotile fibers were blended with binding agents and applied wet to steel surfaces, where the mixture dried and adhered in a thick, fibrous coating. The resulting material was light, porous, and effective as a thermal insulator — but it was also friable, meaning it could be crumbled, pulverized, or disturbed with minimal physical force. Friable asbestos-containing material releases respirable fibers into the air when disturbed during application, drying, overspray cleanup, or any subsequent physical contact.

Litigation records document that Cafco Blaze-Shield contained measurable concentrations of chrysotile asbestos that were capable of generating hazardous airborne fiber levels during normal application and disturbance conditions. The friable character of the cured material made it a source of ongoing fiber release not only at the time of original installation but also during any subsequent renovation, drilling, cutting, or demolition work performed in buildings where the product had been applied.

How Workers Were Exposed

Exposure to Cafco Blaze-Shield asbestos fibers occurred across several trades and work phases, with the highest exposure levels generally associated with workers who were closest to active spray application.

Iron workers who erected the structural steel framing were frequently present on job sites where Blaze-Shield was being applied to completed sections of the structure. Overspray from high-pressure application equipment reached workers in adjacent bays or on lower levels, and iron workers were sometimes required to work in areas still coated in wet or recently dried material.

Construction laborers performed cleanup and surface preparation work directly around spray fireproofing operations. Sweeping dried overspray, hauling material, and general site maintenance brought laborers into repeated contact with dislodged fireproofing debris. Plaintiffs alleged that laborers on large commercial projects were routinely exposed to visible clouds of overspray during application shifts and had no effective respiratory protection during the 1958–1972 production period.

Lathers, who installed the metal lath and framing components that often supported or surrounded fireproofed steel assemblies, worked in close physical contact with Blaze-Shield-coated surfaces. Their work required cutting, fitting, and fastening lath systems adjacent to or directly against fireproofed steel, activities that disturbed the cured coating and released fibers.

Building renovation workers represent a substantial category of secondary or bystander exposure. Litigation records document that tradespeople performing renovation work in buildings constructed between 1958 and 1972 encountered intact Blaze-Shield installations on structural steel throughout those structures. Drilling into ceilings, cutting through decking, removing partitions, or installing mechanical systems in spaces where Blaze-Shield had been applied decades earlier released chrysotile fibers from the aged, friable coating. Renovation workers were frequently unaware of the presence of asbestos-containing fireproofing in the structures where they worked.

Demolition workers faced concentrated exposure conditions when entire structures containing Blaze-Shield installations were razed. Mechanical demolition, cutting, and breaking of fireproofed steel assemblies generated heavy fiber concentrations in uncontrolled work environments. Plaintiffs alleged that demolition crews working on structures built during the Blaze-Shield production era were exposed to asbestos without adequate hazard warnings, abatement protocols, or respiratory protection.

Across all of these trade categories, the absence of effective warnings from the manufacturer during the product’s active years meant that workers had no reliable means of recognizing their exposure or protecting themselves from it.

Cafco Blaze-Shield is a Tier 2 product with no associated active asbestos bankruptcy trust fund. U.S. Mineral Products Company has been named as a defendant in asbestos personal injury litigation, and claims arising from Blaze-Shield exposure have been pursued through the civil court system.

Litigation records document that plaintiffs diagnosed with asbestos-related diseases — including mesothelioma, asbestosis, lung cancer, and pleural disease — have filed claims against U.S. Mineral Products and related parties in connection with occupational exposure to Cafco Blaze-Shield. Plaintiffs alleged that the manufacturer knew or should have known of the hazards associated with chrysotile asbestos in spray-applied products and failed to adequately warn workers or provide sufficient safety guidance during the product’s years of production and use.

Individuals who believe they were exposed to Cafco Blaze-Shield during their working years — whether as iron workers, construction laborers, lathers, renovation workers, or demolition workers — should consult with an attorney experienced in asbestos litigation. Counsel can evaluate the specific circumstances of exposure, identify applicable defendants, and assess whether civil litigation is an appropriate avenue based on the claimant’s diagnosis and work history.

Because Blaze-Shield was applied across a wide range of commercial and industrial construction projects from 1958 through 1972, work history documentation, coworker testimony, union records, and building permits are often relevant in establishing the presence of the product at a given job site. Mesothelioma, in particular, carries a well-documented causal association with asbestos exposure, and plaintiffs alleging exposure to spray fireproofing products have pursued civil claims with the assistance of occupational medicine experts and industrial hygienists.

Statutes of limitations for asbestos claims vary by state and generally begin running from the date of diagnosis rather than the date of exposure. Individuals with confirmed asbestos-related diagnoses are encouraged to seek legal consultation promptly.