Cafco Blaze-Shield Patching Fiber Type D

Product Description

Cafco Blaze-Shield Patching Fiber Type D was a spray-applied fireproofing material manufactured by United States Mineral Products Company, a New Jersey-based manufacturer that produced a broad line of construction materials under the Cafco brand name. The product was formulated specifically as a patching and repair compound intended to restore or supplement fireproofing coverage on structural steel members, decking, and other building components where spray-applied fireproofing had been damaged, displaced, or left incomplete during original installation.

Manufactured and sold between approximately 1965 and 1971, Cafco Blaze-Shield Patching Fiber Type D was part of a wider family of Blaze-Shield products that United States Mineral Products marketed to commercial construction, industrial facility, and institutional building sectors during a period of intensive high-rise and industrial construction in the United States. Patching compounds of this type were typically used in situations where primary spray fireproofing applications needed touch-up after trades had worked through finished fireproofing areas, or where mechanical damage required restoration of fire ratings mandated by building codes.

The product was applied by spraying a mixed slurry onto steel or other substrate surfaces, where it dried to form a fire-resistive coating. Like other Cafco-branded fireproofing materials of the same era, the Type D formulation was engineered for adherence to irregular surfaces and compatibility with the base-coat Blaze-Shield products already in place on job sites where patching was required.

Asbestos Content

Cafco Blaze-Shield Patching Fiber Type D contained chrysotile asbestos as a primary fibrous component of its formulation. Chrysotile, also known as white asbestos, is a serpentine-form asbestos mineral that was the most commercially prevalent variety used in construction materials throughout the mid-twentieth century. In spray fireproofing compounds, chrysotile fibers served a structural function within the matrix, providing tensile reinforcement, improving the adhesion of the applied material to steel substrates, and contributing to the overall fire-resistance performance of the finished coating by inhibiting heat transfer.

Chrysotile asbestos has been classified as a known human carcinogen by the International Agency for Research on Cancer (IARC) and is regulated under the Occupational Safety and Health Administration’s (OSHA) asbestos standards codified at 29 CFR 1910.1001 and 29 CFR 1926.1101. The U.S. Environmental Protection Agency’s Asbestos Hazard Emergency Response Act (AHERA) framework also addresses chrysotile-containing building materials, establishing inspection, management, and abatement requirements for asbestos-containing materials in schools and other regulated structures.

Because Cafco Blaze-Shield Patching Fiber Type D was a spray-applied product mixed and applied in the field, its asbestos fiber content was not encapsulated during use. The product existed in a friable state during application and in a potentially friable condition after curing, particularly when the applied coating was subject to disturbance, damage, or removal.

How Workers Were Exposed

Workers involved in the application, disturbance, or removal of Cafco Blaze-Shield Patching Fiber Type D faced documented pathways of asbestos fiber inhalation exposure. Industrial workers and construction trades personnel working in facilities where the product was applied were the populations most directly at risk.

During Mixing and Application: Patching fiber products required on-site mixing before spray application. Workers who opened bags of dry compound, poured material into mixing equipment, and operated spray rigs would have generated airborne asbestos dust throughout the process. Chrysotile fibers released during dry mixing are respirable in size and remain suspended in air for extended periods, creating an inhalation hazard not only for the applicator but for other workers in the same space.

During Spray Application: The spray application process itself aerosolized the wet slurry under pressure, which could release additional fibers into the surrounding work environment. Workers in proximity to spray operations—including pipefitters, electricians, ironworkers, and general laborers performing other tasks in the same building areas—were potentially exposed to overspray and airborne fibers without direct involvement in the application itself.

During Disturbance and Removal: Because patching fiber was applied to restore fire ratings in areas that had already been worked through by multiple trades, subsequent trade activity in those areas could disturb the cured coating. Drilling, cutting, demolition, or removal of fireproofed steel members generates friable asbestos dust from any chrysotile-containing coating present. Workers performing maintenance, renovation, or demolition work in industrial facilities where Cafco Blaze-Shield Patching Fiber Type D had been applied faced exposure risks that could continue for decades after the original installation.

Bystander and Secondary Exposure: Workers and supervisors present in facilities during application or disturbance activities, as well as family members of workers who carried asbestos-contaminated clothing and materials home, represent additional exposure categories recognized in occupational health literature and litigation records.

Cafco Blaze-Shield Patching Fiber Type D is a Tier 2 litigated product. There is no established asbestos bankruptcy trust fund associated with this specific product or United States Mineral Products Company that currently administers claims for this material. Persons injured by exposure to this product have pursued compensation through civil litigation in state and federal courts.

Litigation History: Litigation records document that plaintiffs alleged personal injury and wrongful death claims arising from asbestos-containing Cafco-branded fireproofing products manufactured by United States Mineral Products Company. Plaintiffs alleged that the company knew or should have known of the hazardous nature of chrysotile asbestos in its products and failed to provide adequate warnings to workers and end users who came into contact with Blaze-Shield formulations including patching compounds. Litigation records further document that plaintiffs alleged inadequate labeling and a failure to recommend appropriate respiratory protection during mixing, application, and disturbance of the product.

Diseases Associated with Asbestos Exposure in Claims: Litigation records reflect claims involving mesothelioma, asbestosis, lung cancer, and other asbestos-related diseases filed by industrial workers and construction personnel who identified Cafco Blaze-Shield products among the asbestos-containing materials to which they were exposed during their working lives.

Steps for Affected Individuals: Individuals diagnosed with mesothelioma, lung cancer, asbestosis, or other asbestos-related conditions who believe they were exposed to Cafco Blaze-Shield Patching Fiber Type D should consult with an attorney experienced in asbestos litigation. An attorney can review work history records, locate co-worker witnesses, and identify all potential defendants and available sources of compensation, which may include direct civil claims, claims against other responsible parties’ bankruptcy trusts, and applicable veterans’ benefit programs for those with military service exposure.

Documentation of work history—including employment records, union membership records, contractor records, and the recollections of co-workers who can identify specific products used on job sites—is essential to supporting a civil claim involving a litigated product for which no trust fund pathway exists.