Bondex (Bondek) Black Plastic Roof Cement

Product Description

Bondex Black Plastic Roof Cement was a bituminous roofing compound manufactured and marketed under the Bondex brand name, also appearing in trade documentation under the variant spelling “Bondek.” The product was formulated as a thick, trowel-applied mastic intended for sealing, patching, and waterproofing applications on flat and low-slope roofing systems. It was sold in cans and bulk containers for use on built-up roofing assemblies, around roof penetrations, along seams, and at flashings where watertight integrity was critical.

Roof cements of this type were widely distributed through building supply channels and were commonly specified on industrial, commercial, and residential construction projects throughout the mid-to-late twentieth century. The Bondex brand had broader market recognition across several product lines, including joint compounds and patching materials, which has led to occasional overlap in documentation and litigation records when workers or their families attempt to reconstruct exposure histories. Black plastic roof cement, however, represents a distinct product category from those joint compound and patching lines, characterized by its asphalt base and its application to exterior roofing surfaces rather than interior drywall assemblies.

Asbestos Content

Asbestos fibers were commonly incorporated into bituminous roofing mastics and roof cement formulations during much of the twentieth century. Manufacturers added asbestos — most often chrysotile, though amphibole varieties were also documented in some product lines — as a reinforcing and stabilizing agent. Within a bituminous matrix, asbestos fibers improved the product’s resistance to slumping and flow at elevated temperatures, extended workability in cold conditions, and contributed to the overall durability of the cured material. These performance characteristics made asbestos a technically advantageous additive at a time when regulatory scrutiny of the mineral was limited or nonexistent.

With respect to Bondex Black Plastic Roof Cement specifically, litigation records document that plaintiffs alleged the product contained asbestos as a component of its formulation. The precise fiber type, percentage by weight, and the specific years during which asbestos-containing batches were manufactured have been subjects of testimony and documentary evidence in asbestos personal injury proceedings. Regulatory action under AHERA and subsequent EPA guidance ultimately led the building materials industry to reformulate or discontinue asbestos-containing roofing mastics, but products manufactured and distributed prior to those reforms could remain in inventory, in active use, or on installed roofing systems for years afterward.

How Workers Were Exposed

Exposure to asbestos in roofing cement products occurred through mechanisms tied to the physical handling, application, and disturbance of the material across several distinct work contexts.

Application and Spreading. Workers who troweled, brushed, or otherwise spread roof cement directly onto roofing surfaces were in sustained close contact with the product. When cement was drawn from a can or pail and worked across a surface, fibers that had settled or were loosely bound within the bituminous matrix could become airborne, particularly in warm or dry conditions that reduced the viscosity of the material.

Mixing and Conditioning. Roof cement that had partially cured in storage, or that had thickened over time, required workers to stir or mix the contents of containers before use. This mechanical agitation could disturb fiber distribution within the product and increase the potential for inhalation exposure at close range.

Cutting, Scraping, and Removal. Reroofing and repair work required the removal or disturbance of previously applied roof cement. Workers who scraped, chiseled, or ground away old mastic — or who cut through roofing assemblies in which the cement had been used — could release fibers from material that had been in place for years or decades. Disturbance of aged, dried, or friable asbestos-containing roofing mastics is recognized as a higher-exposure scenario than application of fresh material.

Proximity Exposure. Industrial workers generally, including maintenance personnel, laborers performing adjacent tasks, and supervisors or inspectors present on rooftops or in work areas where roofing cement was being applied or removed, could be exposed through bystander inhalation without directly handling the product themselves.

Ventilation Conditions. Rooftop environments subject to wind could disperse fibers across broader work areas, while enclosed or partially enclosed spaces — equipment rooms, roof-level mechanical penthouses, or interior work involving roof penetrations — could concentrate airborne fiber levels when ventilation was inadequate.

Litigation records document that plaintiffs alleged Bondex Black Plastic Roof Cement was used in occupational settings where adequate warnings about the presence of asbestos and the risks of inhalation exposure were not provided to workers. Plaintiffs further alleged that the manufacturer knew or should have known of the hazards associated with asbestos-containing products at the time of the product’s distribution and use.

Documented Trust Fund / Legal Options

Bondex Black Plastic Roof Cement is categorized as a Tier 2 — Litigated product. There is no dedicated asbestos bankruptcy trust fund established specifically for claims arising from this product. Individuals who believe they sustained asbestos-related injury through exposure to Bondex Black Plastic Roof Cement should pursue their claims through the civil litigation system.

Civil Litigation Pathway. Litigation records document that personal injury and wrongful death claims have been brought in connection with asbestos-containing Bondex brand products. Plaintiffs in these cases have alleged diseases including mesothelioma, lung cancer, asbestosis, and other asbestos-related conditions. Claims are typically pursued in state court against product manufacturers, distributors, and other parties in the chain of commerce who may have had responsibility for warnings, product safety, and workplace hazard communication.

Product Identification Evidence. Because Bondex marketed products under several names and in multiple product categories, establishing exposure specifically to the Black Plastic Roof Cement formulation rather than to other Bondex products may be an important element of a legal claim. Workers and their families are encouraged to document job sites, employers, dates of work, and any product containers, receipts, safety data sheets, or co-worker testimony that can support product identification.

Who May Have a Claim. Industrial workers generally, roofers, maintenance workers, laborers, and others who worked directly with or in proximity to Bondex Black Plastic Roof Cement may have potential claims if they have received a diagnosis of mesothelioma, asbestos-related lung cancer, asbestosis, or another asbestos-related disease. Family members of workers who laundered work clothing contaminated with roofing materials may also have potential claims based on secondary or take-home exposure.

Consulting an Attorney. Given the statute of limitations applicable in asbestos cases — which vary by state and typically begin to run from the date of diagnosis or the date a plaintiff reasonably should have connected a diagnosis to asbestos exposure — individuals with potential claims should consult a qualified asbestos litigation attorney without delay. An experienced attorney can evaluate the strength of product identification evidence, identify all potentially liable parties, and advise on the appropriate venue for filing.