Red Top Firecode “V” Plaster (Fireproofing Plaster)

Manufacturer: United States Gypsum Company (USG) Product Type: Fireproofing / Gypsum Plaster Asbestos Type: Chrysotile asbestos Years Produced: 1962–1969 Legal Tier: Tier 2 — Litigated

Product Description

Red Top Firecode “V” Plaster was a gypsum-based fireproofing plaster manufactured by United States Gypsum Company (USG) during the 1960s. The product was designed to provide fire-resistance ratings to structural building elements, including walls, ceilings, and column enclosures in commercial and industrial construction. Fireproofing plasters of this type were applied in a wet or semi-wet state over substrate materials, then allowed to cure and harden into a rigid, fire-resistant coating.

The “Firecode” designation indicated that the product was formulated and tested to meet specific fire-resistance standards, making it a preferred material in construction projects where building codes or insurance requirements mandated rated fire assemblies. During the period of its production, from 1962 through 1969, fireproofing materials incorporating asbestos fibers were widely used throughout American industrial and commercial construction. The Red Top brand was an established USG product line, and Firecode “V” Plaster represented one of several specialty formulations offered under that brand umbrella.

USG was among the largest manufacturers of gypsum-based building products in the United States throughout the twentieth century. The company produced a broad range of plasters, joint compounds, wallboards, and specialty construction materials, several of which incorporated asbestos during the mid-twentieth century in response to demand for improved fire resistance and durability.

Asbestos Content

Red Top Firecode “V” Plaster contained chrysotile asbestos as a functional ingredient in its formulation. Chrysotile, also known as white asbestos, is the most commercially prevalent form of asbestos and belongs to the serpentine mineral group. It was incorporated into fireproofing plasters for several practical reasons: chrysotile fibers are heat-resistant, structurally reinforcing, and contributed to the binding and cohesive properties of the cured plaster matrix.

In fireproofing applications, asbestos fibers served both a thermal insulation function and a structural reinforcement role. The fibers helped reduce cracking during curing and contributed to the product’s ability to maintain integrity under high-temperature conditions. These properties made chrysotile a commercially attractive additive for manufacturers developing fire-rated construction products during the 1960s.

Although chrysotile is sometimes characterized as less hazardous than amphibole forms of asbestos such as crocidolite or amosite, regulatory and scientific consensus — including positions reflected in OSHA standards and AHERA regulations — holds that chrysotile is a known human carcinogen capable of causing mesothelioma, asbestosis, and lung cancer at sufficient levels of exposure. There is no established safe threshold of asbestos fiber exposure recognized under current federal occupational health standards.

How Workers Were Exposed

Workers in industrial settings who handled, mixed, applied, or worked in proximity to Red Top Firecode “V” Plaster during its years of production were potentially exposed to airborne chrysotile asbestos fibers. Litigation records document that industrial workers constitute the primary exposure group identified in claims related to this product.

Exposure pathways associated with gypsum-based fireproofing plasters typically included several stages of product handling. Dry plaster materials were often supplied in bagged form and required mixing with water before application. The dry mixing process, which involved tearing open bags, pouring powder, and agitating the mixture, could release significant concentrations of fine particulate matter — including asbestos fibers — into the surrounding air. Workers performing this task without respiratory protection faced direct inhalation exposure.

Application of wet plaster to structural surfaces using trowels, hawks, or spray equipment could also disturb and aerosolize asbestos-containing material, particularly if the plaster was applied with force or worked aggressively to achieve coverage. Finishing operations, including smoothing and leveling the applied plaster surface before it fully cured, presented additional fiber release risk.

Beyond primary applicators, other workers present in the same work environment — including pipefitters, ironworkers, electricians, carpenters, and general laborers — may have been exposed to asbestos fibers released by nearby plastering operations. This type of bystander exposure in enclosed or poorly ventilated industrial work areas was a common pattern documented in asbestos litigation across multiple product categories.

Litigation records document that plaintiffs alleged inadequate warnings on product packaging and in manufacturer communications regarding the hazards of asbestos-containing materials during the period Red Top Firecode “V” Plaster was produced and distributed. Plaintiffs alleged that USG and other manufacturers were aware of published scientific and medical literature linking asbestos exposure to serious respiratory disease prior to and during the product’s years of production, and that this knowledge was not adequately communicated to workers or employers in the field.

Red Top Firecode “V” Plaster is a Tier 2 litigated product. Unlike many asbestos-containing products whose manufacturer established or contributed to an asbestos bankruptcy trust fund, there is no dedicated asbestos trust fund specifically associated with this USG product. Legal claims related to this product proceed through civil litigation rather than administrative trust fund submission.

Civil Litigation

Plaintiffs diagnosed with asbestos-related diseases — including mesothelioma, asbestosis, asbestos-related lung cancer, and pleural disease — who can document occupational exposure to Red Top Firecode “V” Plaster have pursued claims through the civil court system. Litigation records document cases in which plaintiffs alleged that exposure to this product contributed to the development of asbestos-related illness.

To support a civil claim, plaintiffs and their legal representatives typically work to establish product identification through work history documentation, co-worker testimony, employment records, and contractor or purchasing records that confirm the presence of the specific product at a given job site during the applicable exposure period. Medical records establishing diagnosis and, where possible, pathological confirmation of fiber type are also central to case development.

Because asbestos-related diseases frequently have latency periods of twenty years or more between exposure and diagnosis, workers exposed to Red Top Firecode “V” Plaster during its production years of 1962 through 1969 may be receiving diagnoses today. Statutes of limitations for asbestos personal injury claims vary by state and generally begin running from the date of diagnosis or discovery of the asbestos-related condition rather than the date of exposure.

Steps for Affected Workers

Individuals who believe they were exposed to Red Top Firecode “V” Plaster and have received an asbestos-related diagnosis should consult with an attorney experienced in asbestos litigation. Documentation of employment history, job site locations, specific products encountered, and the nature of work tasks performed will assist legal counsel in evaluating the viability of a claim. Medical records, including pathology reports and imaging studies, should also be preserved and made available for legal review.

This article is provided for informational and legal reference purposes. It does not constitute legal or medical advice. Individuals seeking guidance on asbestos exposure claims should consult a qualified asbestos litigation attorney.