Celotex Corporation — Asbestos-Containing Products Reference

Company History

Celotex Corporation was one of the most prominent building materials manufacturers in twentieth-century America, with a product history spanning insulation, flooring, wallboard, and specialty construction materials. Over decades of growth and acquisition, the company assembled a broad portfolio of insulation and building products that reached industrial, commercial, and residential jobsites across the country.

A pivotal chapter in Celotex’s corporate history was its acquisition of the Philip Carey Manufacturing Company, a Cincinnati-based firm whose roots in asbestos insulation products stretched back to the early twentieth century. Through that acquisition, Celotex inherited the Carey product lines — a comprehensive family of pipe coverings, insulating cements, millboard, block insulation, and felts that had been specified in industrial plants, shipyards, power stations, and commercial construction for generations. The Carey name remained associated with those products long after the acquisition, and workers who encountered them on the job often identified them by their Carey branding rather than the Celotex corporate identity.

Celotex continued manufacturing asbestos-containing products under both the Celotex and Carey names until approximately the early 1980s, as regulatory pressure from the Environmental Protection Agency and the Occupational Safety and Health Administration increasingly curtailed asbestos use in American manufacturing. By that time, the health consequences of asbestos exposure — mesothelioma, asbestosis, lung cancer, and other diseases — had become the subject of mounting litigation that would eventually define Celotex’s legal legacy as much as its manufacturing history.


Asbestos-Containing Products

According to asbestos litigation records, Celotex Corporation and its predecessor Philip Carey Manufacturing Company produced an extensive range of asbestos-containing products across multiple categories. The following products are documented in court filings, product identification records, and industrial safety research as having contained asbestos during the periods noted.

Thermal Pipe Insulation and Block Products

85% Magnesia Pipecovering / Block / Cement (approximately 1906–1961) was among the oldest and most widely used products attributed to the Carey line. Plaintiffs alleged that this product category, common throughout American industrial facilities during the mid-twentieth century, contained asbestos as a binding and reinforcing agent.

ALLTEMP Pipecovering / Block (approximately 1954–1958) represented a branded thermal insulation product that court filings document as containing asbestos during its period of manufacture and distribution.

Carey Pipe Covering (approximately 1906–1961) and the later Careytemp Pipe Covering (approximately 1958–1969) were pipe insulation products used extensively in industrial facilities, power plants, refineries, and marine applications. According to asbestos litigation records, both products contained asbestos fiber as a primary insulating and structural component.

Carey Block Insulation (approximately 1906–1961) and Careytemp Block Insulation (approximately 1958–1969) were rigid insulating blocks applied to boilers, vessels, and high-temperature piping systems. Court filings document these products as asbestos-containing materials used in settings where tradespeople worked in close and sustained proximity to the installation, maintenance, and removal of thermal insulation systems.

Fyrex (approximately 1969 through the early 1970s) was documented as a paper pipe low-temperature pipe covering product. According to asbestos litigation records, Fyrex was manufactured and sold during a period when asbestos remained in broad commercial use in the insulation industry.

Insulating Cements

Carey Insulating Cement (approximately 1906–1967), Carey MW-50 Insulating Cement (approximately 1940–1972), and Careytemp Insulating Cement (approximately 1958–1969) were trowel-applied finishing and sectional cements used alongside pipe covering and block insulation. Plaintiffs alleged that mixing, applying, and finishing these cement products generated respirable asbestos dust that workers inhaled during both application and adjacent trades work.

Millboard and Specialty Refractory Materials

Carey Millboard (approximately 1906–1972) was a compressed asbestos-fiber sheet product used as a refractory lining, thermal barrier, and fire protection material in industrial and construction applications. According to asbestos litigation records, millboard products of this type were cut, drilled, and shaped on jobsites, releasing asbestos fibers into the breathing zone of insulators, pipefitters, boilermakers, and nearby workers.

Carey 7-M Asbestos Shorts (approximately 1906–1972) were a raw or semi-processed asbestos fiber product used in manufacturing and industrial applications. Court filings document this material as part of the broader Carey product portfolio distributed during much of the twentieth century.

Felts and Sheet Products

Carey Asbestos Felts (approximately 1960–1982) and Carey Fiberock Felt (approximately 1960–1973) were asbestos-containing felt sheet products used in roofing, flooring underlayment, and related applications. Plaintiffs alleged that handling, cutting, and fitting these flexible sheet materials disturbed asbestos fiber and created inhalation hazards for workers in roofing, flooring, and construction trades.

Floor Tile

Carey Asphalt Floor Tiles (approximately 1930–1975) were vinyl-asbestos and asphalt-asbestos composition floor tiles used in residential, commercial, and institutional building construction. According to asbestos litigation records, these tiles contained chrysotile asbestos as a reinforcing agent. Tile installation, removal, sanding, and buffing operations — particularly when tiles were cut or abraded — are documented in occupational health research as capable of releasing asbestos fiber.


Occupational Exposure

The breadth of the Celotex and Carey product lines meant that workers across numerous trades encountered these materials during routine job tasks throughout much of the twentieth century. Court filings document exposure claims from workers in the following occupational categories:

Insulators and pipe coverers worked directly with pipe covering, block insulation, and insulating cements on a daily basis. Sawing, breaking, and fitting preformed insulation sections — as well as mixing and applying finishing cements — generated dust clouds that plaintiffs alleged contained respirable asbestos fibers.

Boilermakers, pipefitters, and steamfitters installed and maintained high-temperature systems where Carey-branded insulation products were specified. These trades frequently worked alongside insulators or performed their own insulation removal and reinstallation during maintenance and repair cycles.

Shipyard workers operated in confined spaces aboard vessels under construction or overhaul, where pipe insulation and block products were applied to propulsion, steam, and auxiliary systems. According to asbestos litigation records, shipyard environments were among the highest-exposure settings documented for Carey and Celotex insulation products.

Power plant and refinery workers — including operators, maintenance mechanics, and construction tradespeople — encountered Carey products during both initial construction and the ongoing maintenance and overhaul cycles typical of heavy industrial facilities.

Floor tile installers and contractors handled Carey Asphalt Floor Tiles during cutting, scoring, and adhesive bonding. Tile removal — particularly dry scraping or grinding of aged tiles — is recognized in occupational health literature as an activity that can release encapsulated asbestos fiber.

Roofers and construction laborers working with Carey felt products were exposed to asbestos during cutting and fitting operations associated with roofing and underlayment installation.

Secondary or para-occupational exposure has also been raised in litigation. Court filings document claims from family members of workers who alleged that asbestos fibers were carried home on work clothing, creating household exposure to spouses and children who laundered contaminated garments.


Celotex Corporation does not have an active asbestos bankruptcy trust fund. Unlike some asbestos defendants that resolved their liabilities through bankruptcy reorganization and the establishment of a Section 524(g) trust, Celotex’s legal history followed a different path. According to asbestos litigation records, Celotex faced extensive personal injury litigation over many decades, generating a substantial body of case law and procedural history in courts across the country.

Individuals who were exposed to Celotex or Carey asbestos-containing products and subsequently developed mesothelioma, asbestosis, lung cancer, or related diseases should be aware that claims against Celotex’s corporate successors or related entities may need to be pursued through civil litigation rather than through a trust fund claim process. The appropriate legal avenue will depend on the specific circumstances of exposure, the corporate structure of any surviving or successor entities, and the jurisdiction in which a claim is filed.

Workers and families researching exposure history should consider the following steps:

  • Document all worksites, employers, and time periods during which Celotex or Carey products were encountered, including specific product names where known.
  • Preserve any employment records, union records, Social Security earnings histories, or co-worker testimony that can place a claimant at a worksite where these products were used.
  • Consult with an attorney experienced in asbestos personal injury litigation to evaluate whether civil litigation, claims against other solvent defendants, or access to other asbestos trust funds may be available based on the specific exposure history.
  • Note that many asbestos diseases have long latency periods — mesothelioma, for example, may not present until decades after initial exposure — and that statutes of limitations in asbestos cases typically begin running from the date of diagnosis rather than the date of exposure.

Summary: Celotex Corporation, through its Carey product lines, manufactured a wide range of asbestos-containing pipe insulation, block insulation, insulating cements, millboard, flooring, and felt products from the early twentieth century through approximately the early 1980s. According to asbestos litigation records, these products were used on industrial, commercial, and shipyard jobsites across the United States, and plaintiffs in numerous cases have alleged that exposure to Celotex and Carey asbestos-containing products caused serious respiratory disease. Because Celotex does not maintain an active bankruptcy trust fund, individuals with documented exposure and a qualifying diagnosis should seek legal guidance to identify available civil litigation or alternative compensation pathways.