Flintkote Asbestos Cement Pipe

Product Description

Flintkote Company was a major American building materials manufacturer active throughout much of the twentieth century, producing an extensive range of construction products that included roofing materials, floor tile, ceiling tile, joint compounds, pipe insulation, and cement pipe. The company operated manufacturing facilities across the United States and supplied products to residential, commercial, and industrial construction markets for decades.

Asbestos cement pipe was among the categories of products associated with Flintkote’s broader manufacturing operations during the period when asbestos was widely used in construction materials. Asbestos cement pipe — sometimes called AC pipe or transite pipe — was a composite material formed by combining Portland cement with asbestos fibers under high pressure to produce a rigid, durable pipe product. This manufacturing method was common across the building materials industry during the mid-twentieth century, and AC pipe was adopted broadly in water distribution systems, sewer lines, electrical conduit applications, and industrial process piping.

Flintkote’s product lines spanned multiple construction material categories, and the company’s involvement in cement-based and fiber-reinforced building products placed it within an industry that heavily relied on asbestos as a strengthening and binding agent during this era. The precise production years for Flintkote-branded asbestos cement pipe are not independently verified in all public records, but the company’s active manufacturing period and its broad product catalog are consistent with the decades-long industry-wide use of asbestos in cement pipe, which persisted in the United States from roughly the early twentieth century through the late 1970s and into the 1980s.

Flintkote ultimately faced significant asbestos-related liability, and the company’s legal and financial history became part of the broader asbestos litigation landscape that shaped how victims of asbestos exposure seek compensation today.

Asbestos Content

Asbestos cement pipe manufactured during this era characteristically incorporated chrysotile asbestos as the primary fiber type, though some formulations across the industry also used amphibole fiber varieties including amosite. The asbestos content in AC pipe products of this type typically represented a significant proportion of the material by weight, as the fiber was integral to the structural performance of the pipe — providing tensile reinforcement within the cement matrix and contributing to the product’s resistance to corrosion, heat, and chemical exposure.

Flintkote produced building materials across multiple categories — including roofing products, floor tile, ceiling tile, joint compound, and pipe insulation — that litigation records document contained asbestos. Plaintiffs alleged that asbestos fibers were incorporated into Flintkote products as a core manufacturing component across these product lines during the years the company was actively producing construction materials.

The asbestos fibers bound within cured asbestos cement pipe are generally considered non-friable under intact conditions, meaning the material does not readily release fibers under normal use. However, the material becomes hazardous when cut, drilled, ground, abraded, or broken, at which point asbestos fibers can be released into the air in concentrations that create significant inhalation risk.

How Workers Were Exposed

Industrial workers represent the primary exposure population documented in connection with asbestos cement pipe products. Litigation records document that workers in a range of trades and industrial settings encountered asbestos cement pipe during installation, modification, maintenance, and demolition activities.

Workers engaged in pipe installation at industrial facilities, water treatment plants, chemical processing sites, and large-scale construction projects would have handled asbestos cement pipe directly. Cutting AC pipe to length using hand saws, power saws, or abrasive cutting wheels generated visible dust clouds that contained respirable asbestos fibers. Drilling holes for fittings and connections, threading pipe ends, and breaking or scoring pipe for fitting purposes similarly released fiber-containing dust at the work site.

Plaintiffs alleged that workers were not adequately warned about the presence of asbestos in these products or about the health risks associated with fiber inhalation, and that they were not consistently provided with respiratory protection appropriate for work involving asbestos-containing materials.

Beyond those directly handling the pipe, bystander exposure was a documented concern. Other trades working in proximity to pipe installation or cutting operations — including laborers, ironworkers, electricians, and general construction workers — could inhale asbestos fibers released during nearby pipe work without any direct contact with the product themselves.

Maintenance and repair workers faced ongoing exposure risks at facilities where asbestos cement pipe had already been installed. Work on aging AC pipe systems — whether repairing leaks, replacing sections, or modifying existing pipe runs — could disturb previously stable material and release accumulated fiber contamination as well as fresh fiber from the pipe itself.

Industrial workers generally, as a category, encompass a wide range of occupational settings where asbestos cement pipe was in use: manufacturing plants, refineries, power generation facilities, shipyards, municipal infrastructure, and large commercial construction sites. Workers in these environments over multiple decades of the twentieth century represent the population most directly at risk.

Documented Product Identification

The following details are drawn from public asbestos litigation records, manufacturer catalog pages, technical manuals, and corporate history materials. Each item reflects the product as documented in those sources.

Documented asbestos-use period: 1940-1982

Corporate context: Flintkote Company was a manufacturer of building materials, roofing products, coatings, and industrial cements. The company produced asbestos-containing products and also purchased and resold asbestos products from other manufacturers.

Brand identification: Products branded under names including Fibrex, Thermalkote, Rexalt, Decoralt, Decocolor, Decobase, Decoturf, Van Packer, Unimastic, Spraykote, Nu-static, Steadfast, Viskalt, Weldon, Skykote, Super Stakool, Flintdek

Documented asbestos components: cement, coating, mastic, felt, board, pipe, siding, shingles, floor tile, chimney components, deadener, sealer, adhesive, putty.

Industries served: Railroad, Roofing, Construction, Automotive, Flooring, Tennis court surfacing, Residential building, Commercial building.

Documented product lines:

  • R.R. Car Cement (1940s-pre 1968). Railroad car cements and sealants produced for various railroad companies including NYC R.R., IC, L&N, Missouri-Pacific, Southern Railway, and Pullman — asbestos components: cement.
  • Plastic Cement (Early 1940s-1982). Roofing plastic cement also known as Viskalt Flashing Cement — asbestos components: cement.
  • Fiber Roof Coating (FRC) (1945-1982). Fibrated roof coating for roofing applications — asbestos components: coating.
  • Fibrex Cement (Early 1940s-1982). Fibrated cement product also known as Fibrex I — asbestos components: cement.
  • GP-8 Tile Cement (Early 1940s-1982). Tile adhesive cement also known as R-14-C — asbestos components: cement.
  • Thermalkote (Late 1940s-1982). Insulating coating product also known as Filler Coat Binder — asbestos components: coating.
  • Asbestos Cement Board (1950-1970). Building board material containing asbestos fibers — asbestos components: board.
  • Asbestos Cement Pipe (1962-1977). Pipe products made with asbestos cement — asbestos components: pipe.

Flintkote manufactured numerous asbestos-containing cements, coatings, and mastics with asbestos content ranging from 1% to 65%. The company also purchased and resold asbestos products from other manufacturers including joint treatment compound, spray texture paint, and ceiling tile.