Gold Bond Gypsum Plaster

Product Description

Gold Bond Gypsum Plaster was a line of interior wall and ceiling finishing products manufactured by National Gypsum Company under the Gold Bond brand name. Produced from the 1940s through approximately 1972, these plaster products were marketed to the commercial and residential construction trades as a reliable base-coat and finish-coat material for plastered interior surfaces. National Gypsum was among the largest gypsum product manufacturers in the United States during this period, and the Gold Bond name carried significant recognition among building contractors, plasterers, and supply houses nationwide.

The plaster was sold in dry powder form, packaged in multi-pound bags, and mixed with water and aggregate on the job site before application. Gold Bond Gypsum Plaster was used extensively in hospitals, schools, apartment buildings, office complexes, and private residences built or renovated during the mid-twentieth century. Because plasterwork was a standard interior finishing method through the early 1970s, this product reached a wide cross-section of the construction workforce over its production lifespan.

National Gypsum operated numerous manufacturing plants across the country, giving Gold Bond products broad regional distribution. The company’s size and market reach meant that workers in virtually every region of the United States could encounter this product on active job sites throughout the decades it was produced.

Asbestos Content

Certain grades of Gold Bond Gypsum Plaster contained chrysotile asbestos added during the manufacturing process as a reinforcing fiber. Chrysotile, sometimes referred to as white asbestos, is a serpentine mineral fiber that manufacturers incorporated into building products to improve tensile strength, resist cracking, and enhance the workability of applied plaster coatings. In gypsum plaster formulations, these fibers were blended into the dry powder mixture before packaging.

The Asbestos Hazard Emergency Response Act (AHERA) and related federal regulatory actions identified asbestos-containing plaster products as a category of building materials requiring assessment in schools and public buildings. Documentation associated with National Gypsum’s bankruptcy proceedings and subsequent trust fund establishment confirmed that asbestos-containing formulations were part of the company’s product history, including products sold under the Gold Bond label.

Chrysotile fibers, when disturbed, can become airborne as respirable particles. Prolonged or repeated inhalation of chrysotile fibers is associated with asbestosis, lung cancer, and mesothelioma. The fibrous content in dry plaster powder was particularly susceptible to becoming airborne during mixing, application, and sanding operations, creating occupational exposure conditions that persisted for decades before regulatory controls were implemented.

How Workers Were Exposed

Workers across several construction trades faced direct and secondary exposure to asbestos fibers released during the handling and application of Gold Bond Gypsum Plaster.

Plasterers bore the highest level of direct exposure. Opening and emptying bags of dry plaster powder generated visible dust clouds on enclosed job sites. Mixing the dry product with water using mechanical paddles or hand tools further disturbed the powder and released fibers into the air. Applying scratch coats, brown coats, and finish coats involved sustained close-range contact with the material. Finishing and leveling wet plaster, and particularly sanding or abrading dried plaster coats, produced fine airborne particles that workers inhaled over the course of full working days, often in rooms with limited ventilation.

Lathers worked alongside plasterers, installing the metal lath, wood lath, or gypsum board substrates onto which plaster was applied. These workers were present during active mixing and application and therefore shared the same contaminated air environment as the plasterers doing the direct application work.

Masonry workers frequently performed plastering tasks as part of broader interior finishing work and were exposed through the same mixing and application pathways. In many commercial and institutional construction projects, masonry subcontractors were responsible for both structural masonry and interior plaster finishes.

Building renovation laborers encountered Gold Bond Gypsum Plaster under some of the most hazardous conditions. Demolition and renovation work involving walls and ceilings originally finished with asbestos-containing plaster released fibers as the dried material was chipped, broken, cut, or scraped away. Workers performing this type of work in buildings constructed or renovated between the 1940s and early 1970s may have disturbed intact plaster installed decades earlier, often without knowledge that the material contained asbestos.

OSHA standards for asbestos in construction, codified at 29 CFR 1926.1101, were not promulgated until after the period when Gold Bond Gypsum Plaster was actively being applied. Workers employed during the product’s production years had no regulatory requirement for respiratory protection, air monitoring, or hazard communication in connection with asbestos-containing plaster products.

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.