United Gilsonite Laboratories (UGL): Asbestos Product History and Occupational Exposure Reference

Company History

United Gilsonite Laboratories (UGL) is an American manufacturer that built its commercial reputation on specialty coatings, sealers, and building-maintenance products. The company takes its name from gilsonite, a naturally occurring solid hydrocarbon (also called uintaite or asphaltum) mined primarily in Utah and Colorado, which served as a foundational raw material in several of its early product lines. While the precise founding date of UGL is not established in publicly available historical records, the company was operating as a recognized manufacturer of construction and maintenance materials throughout the mid-twentieth century — a period when asbestos was a standard additive in many categories of building products.

During the postwar construction boom of the 1940s through the 1970s, manufacturers across the building-materials industry routinely incorporated chrysotile and other asbestos fiber types into products where heat resistance, fire retardancy, or structural reinforcement was commercially desirable. UGL’s product lines intersected with this broader industrial practice. According to asbestos litigation records, UGL manufactured or distributed products containing asbestos during this era, with use of the mineral continuing until approximately the early 1980s, when regulatory pressure and evolving asbestos standards prompted reformulation across the industry.

UGL continues to operate as a company today and is perhaps best known to contemporary consumers for products such as ZAR wood finish and Drylok masonry waterproofer. The company’s modern product lines are not implicated in asbestos-related concerns; the historical asbestos exposure questions relate specifically to products sold in earlier decades.

Asbestos-Containing Products

The specific product names manufactured by UGL that have been identified in asbestos litigation fall primarily within the pipe-insulation and related sealant categories. Court filings document that plaintiffs alleged exposure to UGL-manufactured products containing asbestos in the context of pipe-coating, joint compounds, and sealing materials used on industrial and commercial jobsites.

Because UGL’s documented asbestos-related litigation does not originate from a single, widely publicized product line with a distinct trade name in the public record, precise product designations are not always uniformly cited across available litigation references. Plaintiffs alleged that UGL’s pipe-related products — including insulating and sealing compounds applied to or around pipe systems — contained asbestos as a functional component during the relevant manufacturing period.

Asbestos was commonly added to pipe-insulation compounds and sealants for several practical reasons recognized by industry at the time:

  • Thermal insulation: Asbestos fibers significantly reduced heat transfer in high-temperature pipe systems.
  • Fire resistance: Products applied to pipe in industrial settings were expected to retard flame spread.
  • Structural integrity: Asbestos reinforced the tensile strength of compound and coating materials.
  • Adhesion and workability: Fiber content improved the application characteristics of trowel-applied and brush-applied products.

According to asbestos litigation records, UGL products in the pipe-insulation category were used on commercial, industrial, and institutional job sites across the United States during the 1940s through the early 1980s. The exact asbestos fiber content by weight in specific UGL formulations is not independently documented in publicly available technical literature reviewed for this article; the claims regarding asbestos content derive from plaintiff allegations and court filings rather than confirmed laboratory analysis accessible to the public.

Occupational Exposure

Workers most likely to have encountered UGL asbestos-containing pipe products were those engaged in construction trades and industrial maintenance roles during the relevant decades. Court filings document that plaintiffs alleged occupational exposure in settings and trades including, but not limited to:

Pipefitters and Steamfitters: Tradespeople installing, repairing, or insulating pipe systems in industrial plants, power generation facilities, refineries, and shipyards were among those alleged to have had direct contact with pipe-insulation compounds.

Insulators: Insulation workers who applied, cut, mixed, or removed pipe-insulating materials worked in close proximity to asbestos-containing products throughout the course of normal duties.

Plumbers: Commercial and industrial plumbers working on large-scale pipe systems would have encountered pipe-sealing and insulating compounds on multi-trade construction projects.

Boiler Room and Mechanical Room Workers: Workers in facilities with extensive pipe networks — hospitals, schools, manufacturing plants, naval vessels, and government buildings — may have been exposed to asbestos-containing products applied to those pipe systems, both during installation and during later disturbance or maintenance.

General Construction Laborers: On large commercial and industrial job sites, laborers working near trades applying pipe-insulation products could have inhaled asbestos fibers released during mixing, application, or cutting operations.

Maintenance and Renovation Workers: Workers conducting repairs or renovations in buildings where UGL asbestos-containing pipe products had been previously applied may have disturbed in-place materials, generating fiber release years or decades after original installation.

Asbestos fibers released from pipe-insulation compounds during mixing, application, cutting, or disturbance can become airborne and remain suspended for extended periods. Inhalation of these fibers is associated with serious latent diseases including mesothelioma, asbestosis, lung cancer, and other asbestos-related conditions. The latency period for these diseases — often 20 to 50 years between first exposure and clinical diagnosis — means that workers exposed to UGL products in the 1950s, 1960s, and 1970s may only now be receiving diagnoses.

Secondhand or take-home exposure is also documented in asbestos litigation broadly. Family members of workers who handled asbestos-containing pipe products may have been exposed through contact with contaminated work clothing, tools, and vehicles brought into the home environment. Plaintiffs alleged this pathway of exposure in asbestos litigation involving various pipe-product manufacturers during this era.

Litigation History

United Gilsonite Laboratories has been named as a defendant in asbestos personal injury litigation in the United States. According to asbestos litigation records, plaintiffs alleged that UGL manufactured and sold pipe-insulation and related products containing asbestos, and that exposure to those products caused or contributed to asbestos-related diseases including mesothelioma and lung cancer.

Court filings document claims against UGL in this context, with plaintiffs alleging the company knew or should have known of the hazards associated with asbestos-containing products and failed to provide adequate warnings to workers and end-users.

This article does not state that UGL has been found liable for asbestos-related harm. The legal status of claims against UGL reflects ongoing or historical civil litigation, and findings vary by case and jurisdiction. Individuals researching exposure history or legal options should consult with an attorney experienced in asbestos personal injury law for case-specific guidance.

No Established Asbestos Bankruptcy Trust

As of the preparation of this reference article, United Gilsonite Laboratories has not established an asbestos bankruptcy trust fund. Unlike manufacturers such as Johns-Manville, Owens Corning, or Armstrong World Industries — which resolved their asbestos liabilities through Chapter 11 bankruptcy reorganization and the creation of Section 524(g) trusts — UGL does not appear to have followed that path.

This means that individuals diagnosed with asbestos-related diseases who believe their illness is connected to UGL products do not have a trust fund claims process available to them as of this writing. Compensation, if pursued, would be sought through civil litigation in the tort system rather than through an administrative trust claims process.

If you or a family member has been diagnosed with mesothelioma, asbestosis, lung cancer, or another asbestos-related disease and believe that exposure to United Gilsonite Laboratories products may have played a role, the following steps are relevant:

  1. Document your work history as completely as possible, including job sites, employers, trade classifications, and approximate dates of employment. Identify specific products you recall using or working near.

  2. Consult an asbestos attorney. Attorneys who specialize in asbestos personal injury cases can evaluate which defendants — including UGL and potentially others — may be named in a civil claim based on your documented exposure history.

  3. Understand the statute of limitations. Asbestos claims are subject to time limits that vary by state and begin running at different points depending on the jurisdiction and circumstances of discovery. Timely legal consultation is important.

  4. Explore all exposure sources. Most asbestos claimants were exposed to products from multiple manufacturers over the course of their careers. An experienced attorney can identify all relevant defendants and trust fund claims that may apply alongside any litigation against UGL.

Summary

United Gilsonite Laboratories is an American building-products manufacturer whose product lines, according to asbestos litigation records, included pipe-insulation and related sealant products containing asbestos during the mid-twentieth century through approximately the early 1980s. Plaintiffs alleged occupational exposure to these products across a range of construction and industrial trades. UGL has been named in asbestos personal injury litigation but has not established a bankruptcy trust fund, meaning that civil litigation remains the primary legal avenue available to claimants. Workers, their families, and their attorneys researching UGL as part of an exposure history investigation are encouraged to seek qualified legal counsel to assess all available options.