Gold Bond Plaster — National Gypsum Company

Product Description

Gold Bond plaster was a line of gypsum-based plaster products manufactured by National Gypsum Company, one of the largest producers of gypsum construction materials in the United States throughout the twentieth century. Marketed under the Gold Bond brand name, these plaster products were widely used in residential, commercial, and industrial construction as a finish material for walls and ceilings. The Gold Bond name became closely associated with a broad range of National Gypsum building products, including joint compounds, plaster mixes, and ceiling tile formulations, all of which shared the company’s core gypsum manufacturing infrastructure.

National Gypsum Company operated manufacturing facilities across the country and distributed Gold Bond products through building supply chains that reached virtually every segment of the construction industry. The widespread availability and commercial reputation of the Gold Bond line made it a standard specification material for contractors, plasterers, and general construction crews from the mid-twentieth century through the period when asbestos use in building materials came under increasing regulatory scrutiny. As awareness of asbestos hazards grew and federal regulations tightened during the late 1970s and into the 1980s, asbestos-containing formulations were phased out of production, but decades of prior manufacturing and installation had already placed Gold Bond plaster in buildings throughout the United States.

Asbestos Content

National Gypsum Company incorporated asbestos fibers into a number of Gold Bond plaster and related gypsum products during a significant portion of the product line’s production history. Asbestos was added to plaster formulations because it improved the material’s workability, tensile strength, resistance to cracking, and fire resistance — properties that made asbestos-containing plaster attractive to builders and architects who specified materials based on both performance and building code compliance.

The National Gypsum Company Asbestos Settlement Trust, established as part of National Gypsum’s bankruptcy reorganization, formally recognizes Gold Bond plaster and related Gold Bond building products as compensable asbestos-containing materials. Trust documentation identifies National Gypsum Company as the responsible party for asbestos-containing Gold Bond products and acknowledges the company’s manufacturing and distribution of these materials as the basis for exposure claims brought by workers and others who handled them.

Chrysotile asbestos was the fiber type most commonly used in gypsum plaster and joint compound formulations of this era, though some industrial and fireproofing-grade plaster products also incorporated amphibole fiber types. The specific fiber content of any individual Gold Bond plaster formulation depended on the product’s intended application and the period in which it was manufactured.

How Workers Were Exposed

Exposure to asbestos from Gold Bond plaster occurred primarily during mixing, application, sanding, and demolition activities. Industrial workers generally who handled Gold Bond plaster products throughout the construction and manufacturing industries faced repeated occupational contact with the material across multiple stages of the building process.

Mixing and preparation was among the most hazardous activities associated with plaster products. Dry plaster was supplied in bags and mixed with water on the job site. Opening bags, pouring dry plaster mix into containers, and stirring the mixture released visible dust clouds containing asbestos fibers. Workers operating in enclosed or poorly ventilated spaces during these mixing operations faced concentrated airborne fiber exposure.

Application of plaster to walls, ceilings, and other surfaces involved spreading and working the material by hand or with tools, activities that continued to liberate fibers from the wet and drying plaster. Plasterers and finish workers spent extended periods in close proximity to the applied material, and any disturbance of the drying surface — such as texturing, leveling, or working around newly applied coats — could generate additional fiber release.

Sanding and finishing represented the highest-exposure activities associated with plaster and joint compound products. Once plaster or compound had dried, workers sanded surfaces to achieve the smooth finish required before painting or wallcovering. Dry sanding of asbestos-containing plaster produced extremely fine airborne dust that could remain suspended in indoor air for extended periods. Workers performing finish sanding, as well as others working in the same space, inhaled these fibers.

Demolition and renovation work exposed subsequent generations of workers who disturbed previously installed Gold Bond plaster during remodeling, repair, or building teardown. Chipping, cutting, breaking, or grinding existing plaster released fibers from material that had been in place for years or decades. Workers performing renovation work in older buildings frequently had no knowledge that the plaster they were disturbing contained asbestos.

Industrial workers in manufacturing settings who produced Gold Bond plaster products also faced occupational exposure at the point of production, where raw asbestos fiber was handled and incorporated into plaster formulations before the finished product reached the construction site.

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.