Fiberpipe by Flintkote: Asbestos Exposure, Product History, and Legal Options

Flintkote’s Fiberpipe is among the asbestos-containing products documented in civil litigation arising from industrial occupational exposures. Workers who handled, installed, or worked in proximity to this product during its manufacture or use may have sustained asbestos-related injuries and may have legal recourse through the civil court system.


Product Description

Fiberpipe was a product manufactured by Flintkote Company, a building materials producer with a broad portfolio that spanned much of the twentieth century. Flintkote operated across multiple product categories—including ceiling tile, cement pipe, floor tile, joint compound, pipe insulation, and roofing products—and marketed materials broadly to industrial and construction sectors.

The Flintkote Company was one of the larger asbestos-related manufacturers in the United States, with operations and product lines that reached across commercial construction, residential building, and heavy industry. Fiberpipe, as the product name suggests, was positioned within the cement pipe or fiber-reinforced pipe segment of Flintkote’s catalog. Fiber-reinforced cement pipe products of this era were commonly used in drainage, sewer, conduit, and underground utility applications, where durability and resistance to corrosion were critical performance requirements.

Litigation records document that Flintkote manufactured and distributed asbestos-containing products under multiple brand names and across multiple categories during decades when asbestos use in building and construction materials was widespread and largely unregulated.


Asbestos Content

Plaintiffs alleged that Fiberpipe, consistent with other fiber-reinforced and cement-based pipe products of its era, contained asbestos as a reinforcing and binding agent. Asbestos was a preferred additive in cement pipe manufacturing because it strengthened the composite matrix, improved tensile resistance, and provided thermal and chemical durability.

Litigation records document that Flintkote incorporated asbestos into numerous product lines across its manufacturing operations. In fiber-reinforced cement pipe products of this type, asbestos fibers—most commonly chrysotile, and in some formulations amphibole varieties such as amosite or crocidolite—were mechanically blended with Portland cement slurry and formed under pressure into pipe sections. The resulting product contained asbestos fibers throughout the cement matrix.

Plaintiffs alleged that Flintkote was aware of the hazards of asbestos-containing materials and that the company failed to adequately warn workers and end users of the risks associated with exposure to asbestos fibers released during product handling, cutting, grinding, and installation.

The specific asbestos content by percentage for Fiberpipe has not been independently published in AHERA documentation reviewed for this article. However, litigation records document that Flintkote’s asbestos-containing products generally reflected industry-standard formulations in which asbestos could constitute a significant proportion by weight of the finished material.


How Workers Were Exposed

Industrial workers generally represent the primary exposure population documented in litigation involving Fiberpipe and related Flintkote products. Asbestos exposure associated with fiber-reinforced cement pipe products occurred across multiple stages: raw material handling, manufacturing, product cutting and fitting, installation, and maintenance or removal.

Cutting and Fabrication Litigation records document that cutting cement pipe to length—whether in a shop environment or on a job site—generated substantial airborne dust. Workers using hand saws, power saws, or abrasive cutting wheels on asbestos-cement pipe released fibers that became suspended in breathing zones. Plaintiffs alleged that these cutting operations, performed without adequate respiratory protection, resulted in significant inhalation exposure.

Installation and Handling Workers involved in laying pipe sections, joining pipe segments, or working in confined trenches or utility corridors where pipe was being installed were exposed to residual dust from prior cuts, broken sections, and disturbed pipe surfaces. Litigation records document that co-workers in close proximity to cutting and fitting operations faced secondary exposure even when not directly performing those tasks.

Maintenance and Repair Industrial workers performing maintenance on systems incorporating asbestos-cement pipe—including breaking out old pipe, drilling access points, or repairing damaged sections—disturbed the asbestos-containing matrix and released fibers. Plaintiffs alleged that maintenance exposures were particularly significant because workers were often unaware that the pipe materials they were disturbing contained asbestos.

Manufacturing Environments Workers employed in Flintkote manufacturing facilities where fiber-reinforced pipe and related products were produced faced chronic occupational exposure through raw asbestos fiber handling, slurry mixing, and production line dust. Litigation records document that manufacturing-side exposures at asbestos building products plants could be severe and sustained over careers spanning years or decades.

The latency period for asbestos-related diseases—often 20 to 50 years between first exposure and diagnosis—means that workers exposed to Fiberpipe during the mid-twentieth century may be receiving diagnoses of mesothelioma, asbestosis, lung cancer, or other asbestos-related conditions today.



This article is provided for informational purposes based on documented litigation records and publicly available information. It does not constitute legal advice. Individuals with potential asbestos exposure claims should consult a qualified attorney.


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.