Gold Bond Acoustical Tile by National Gypsum Company

Product Description

Gold Bond acoustical tile was a line of interior ceiling and wall tile products manufactured by National Gypsum Company under its well-known Gold Bond brand. National Gypsum was one of the largest gypsum-based building products manufacturers in the United States, and the Gold Bond name became broadly synonymous with the company’s expansive catalog of construction materials, which included wallboard, joint compound, plaster, and specialty ceiling products.

Acoustical tile served a practical and commercial purpose in mid-twentieth-century construction. The tiles were designed to absorb sound, reduce noise transmission between spaces, and provide a finished ceiling surface in offices, schools, hospitals, government buildings, and industrial facilities. Their combination of functional performance and relatively low cost made them a popular specification in both new construction and renovation projects throughout the postwar building boom. National Gypsum distributed Gold Bond products through building supply channels nationwide, ensuring wide installation across virtually every construction sector.

Like many building material manufacturers of its era, National Gypsum incorporated asbestos into a number of its Gold Bond product lines, including acoustical tile, joint compound, and plaster formulations. The use of asbestos reflected industry-wide practice during decades when the mineral’s fire-resistant, sound-dampening, and binding properties were considered valuable engineering advantages. Gold Bond acoustical tile was installed in large quantities before regulatory changes and mounting health evidence led to the elimination of asbestos from building materials.

National Gypsum Company filed for bankruptcy protection in 1990, in significant part due to the volume of asbestos-related liability claims it faced. As part of its reorganization, the company established the National Gypsum Company Asbestos Settlement Trust, which continues to process claims from individuals who were exposed to asbestos-containing Gold Bond products, including Gold Bond acoustical tile.

Asbestos Content

National Gypsum incorporated asbestos into Gold Bond acoustical tile as a functional component of the tile matrix. Asbestos fibers were used in ceiling and acoustical tile products for several reasons: the fibers added tensile strength to the relatively fragile tile substrate, contributed to fire resistance, and enhanced the sound-absorbing performance that was the product’s primary selling point. Chrysotile (white asbestos) was the most commonly used fiber type in gypsum-based and fiber-reinforced ceiling tile products of this period, though other fiber types were also present in various formulations across the industry.

Asbestos content in acoustical ceiling tiles generally fell within ranges that have been documented in AHERA (Asbestos Hazard Emergency Response Act) surveys of school and commercial buildings. AHERA-regulated inspections have identified asbestos-containing ceiling tiles in thousands of structures built during the mid-twentieth century, and National Gypsum’s Gold Bond products have appeared in such assessments. When these tiles remain undisturbed and in good condition, fibers may be contained within the tile matrix. However, cutting, drilling, sanding, breaking, or demolishing the tiles releases respirable asbestos fibers into the air—the primary mechanism of occupational exposure.

National Gypsum’s broader Gold Bond product line, including joint compound and plaster formulations, also contained asbestos during overlapping production periods. Workers who handled acoustical tile on a job site frequently encountered these companion products as well, compounding their potential exposure across multiple Gold Bond product categories.

How Workers Were Exposed

Industrial workers and construction tradespeople encountered Gold Bond acoustical tile across a wide range of job functions and work environments. Exposure was not limited to any single trade; rather, the widespread installation of acoustical ceiling systems in commercial and industrial buildings meant that many categories of workers came into contact with the product during installation, maintenance, and demolition phases.

Installation workers faced the most direct and sustained exposure. Cutting acoustical tile to fit around light fixtures, vents, columns, and irregular ceiling dimensions was a routine task that generated visible dust. Workers used hand saws, utility knives, and scoring tools—all of which could fracture the tile matrix and release asbestos fibers. In enclosed spaces with limited ventilation, this dust accumulated and remained airborne for extended periods.

Maintenance and renovation workers encountered Gold Bond acoustical tile repeatedly over the lifespan of a building. Ceiling tiles were routinely removed to access overhead mechanical, electrical, and plumbing systems. Workers who lifted, shifted, or broke tiles to gain access above suspended ceiling grids disturbed the tile material and generated fiber release. Because asbestos-containing tiles were often not labeled as such, workers typically had no warning of the hazard.

Demolition workers and industrial workers generally faced significant exposure during building teardowns and large-scale renovations. Mechanically removing suspended ceiling systems—including tiles, grid components, and associated materials—created substantial quantities of debris and dust. Industrial facilities that housed Gold Bond acoustical tile in their offices, lunchrooms, and interior spaces subjected maintenance crews and production workers to potential secondary exposure whenever ceiling systems were disturbed.

Plasterers and drywall workers who applied Gold Bond joint compound or plaster in spaces where Gold Bond acoustical tile was also being installed faced cumulative exposures from multiple asbestos-containing products within the same work environment.

OSHA regulations now require engineering controls, respiratory protection, and notification procedures when workers encounter asbestos-containing materials. These protections did not exist—or were not enforced—during the decades when Gold Bond acoustical tile was most widely installed and disturbed.

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: 1930-1981

Corporate context: National Gypsum was incorporated in Delaware on August 29, 1925, with headquarters in Buffalo, New York until 1976 when they moved to Dallas, Texas. The Gold Bond Building Products Division was created in 1966. Following bankruptcy reorganization, asbestos claims are handled by the NGC Settlement Trust through Asbestos Claims Management Corporation (ACMC).

Brand identification: Gold Bond trademark used across all product lines; specific sub-brands include Asbestibel, Humiguard, Permaboard, Plia-F-Lex, Therm-O-Tec, Woodrock, Sprayolite, Macoustic, Asbestone, Natcor

Documented asbestos components: asbestos cement siding, asbestos cement shingles, asbestos cement panels, asbestos cement flat sheets, asbestos cement corrugated sheets, joint compounds, acoustical plaster, texture coatings, insulating cement, marine board, bulkheading, adhesives, mortar mix, roofing shingles, soffit panels.

Documented asbestos-component suppliers: the public records lists the following external suppliers of asbestos-bearing packing, gaskets, and seals used in conjunction with this manufacturer’s equipment — Keasbey & Mattison Company, Johns-Manville, U.S. Gypsum, American Marietta Company, Durabone Products Company (USG subsidiary), Hatcher Lumber Company, Ruco Company, Monarch Paint Company.

Industries served: construction, residential building, commercial building, industrial building, agricultural/farm buildings, marine/shipbuilding, merchant vessels, waterway infrastructure.

Naval / marine service: This manufacturer’s equipment is documented in connection with U.S. Navy and commercial-marine service.

Documented product lines:

  • Asbestos-Cement Siding Shingles (1954-1981). Exterior siding products including Classic Shake, Chromatex, Chromatone, Chromashake, Deeptex, Woodgrain, and Sussex varieties in various thicknesses. — asbestos components: chrysotile 11.9-21.7%, amosite substitute 1959-early 1970s, crocidolite in Louisiana 1959.
  • Asbestos-Cement Ceiling Panels (1958-1981). Interior ceiling panels including Gold Bond, Asbestibel, and Humiguard branded products. — asbestos components: chrysotile.
  • Asbestos-Cement Flat Sheet (1954-1981). Flat sheet products including Permaboard, Pliaboard, Plia-F-Lex, Therm-O-Tec, and Woodrock for construction applications. — asbestos components: chrysotile 15-44.78%, amosite substitute 1959-early 1970s.
  • Corrugated Asbestos Cement Sheet (1954-1981). Corrugated sheets including Economy 250 and 400 series for sidewalls and roofs on industrial, commercial and farm buildings. — asbestos components: chrysotile 16.3-22.8%, amosite substitute 1959-early 1970s.
  • Drywall Joint Treatment Materials (1935-1975). Joint compounds and cements including Joint Cement, Crown Coat, All-Purpose, Tri-Treatment, Finisher, Quick-Treat, Triple T, Sta-Smooth, Velvet, Two-In-One, Thermo-Weld, Quick-Weld varieties. — asbestos components: chrysotile 0.9-23.1%, some formulations up to 45.2%.
  • Acoustical and Texture Plasters (1930-1976). Spray-applied and trowel-applied acoustical plasters and texture products including Sprayolite, Macoustic, Perfo-Lyte, Thermacoustic, and numerous texture coatings. — asbestos components: chrysotile 1-39%, amosite 11-21% in Thermacoustic.
  • Canal Bulkheading (1959-1981). Gold Bond Bulkheading manufactured for preventing soil erosion along inland waterways and canals in three types. — asbestos components: chrysotile in Type 1, chrysotile and crocidolite in Types 2 and 3, 16.3-30.4% by weight.
  • Roofing Shingles (1954-1968). Asbestos cement roofing products including Dutch Lap, Hexagonal, and Ranch Style shingles. — asbestos components: chrysotile 12.9-22%, amosite substitute 1959-early 1970s.

National Gypsum operated through its Gold Bond Building Products Division and also sold products manufactured by Keasbey & Mattison and Johns-Manville under Gold Bond labels. The company engaged in extensive private-label manufacturing for retailers including Sears, Montgomery Ward, and major building products companies. U.S. Coast Guard approved K&M A-C Board sold by National Gypsum for merchant vessels from 1943-1977.