Asbestos Packing by Raytech

Product Description

Raytech manufactured asbestos packing as an industrial sealing material used extensively across American manufacturing, processing, and utility facilities from the 1920s through approximately 1975. Asbestos packing was a braided, twisted, or compressed material designed to create tight mechanical seals in pumps, valves, pipe fittings, expansion joints, and rotating equipment shafts. The product was sold in coiled rope form, sheet form, and pre-cut rings sized to fit specific equipment configurations.

The industrial appeal of asbestos packing during this era was substantial. Plant engineers and maintenance supervisors prized it for its ability to withstand extreme temperature fluctuations, resist chemical corrosion, and maintain sealing integrity under high pressure. Facilities that relied on steam systems, chemical processing lines, petrochemical pipelines, and heavy industrial machinery routinely stocked Raytech asbestos packing as standard maintenance inventory.

Raytech’s packing products competed in a crowded industrial supply market and were distributed through industrial supply chains to factories, refineries, power generation stations, paper mills, textile plants, and similar operations throughout the United States. Because packing material was considered a consumable maintenance product—worn packing was pulled out and replaced on a regular basis—workers in these facilities encountered Raytech asbestos packing not as a one-time installation but as a recurring element of their daily work routines across the span of entire careers.

Production of asbestos-containing packing by Raytech continued through the mid-1970s, when mounting regulatory pressure and evolving knowledge about asbestos health hazards prompted manufacturers across the industry to begin transitioning to alternative materials. Raytech asbestos packing products installed prior to that transition, however, may remain in place in older industrial equipment and infrastructure to this day.

Asbestos Content

Raytech asbestos packing was manufactured using chrysotile asbestos, the variety of asbestos most commonly used in industrial and commercial products during the twentieth century. Chrysotile, sometimes called white asbestos, accounts for the majority of asbestos used in American industry historically. Despite being characterized at times as less hazardous than amphibole asbestos varieties, chrysotile is classified as a known human carcinogen by the International Agency for Research on Cancer and is subject to stringent regulation under federal law, including standards established by OSHA and EPA’s Asbestos Hazard Emergency Response Act (AHERA) framework.

In asbestos packing, chrysotile fibers were woven, braided, or compressed into the base material to provide strength, heat resistance, and flexibility. The fibrous structure that made chrysotile well suited to these mechanical demands also made it capable of releasing respirable fibers when the material was disturbed, cut, installed, compressed, or removed. Because packing material was routinely manipulated by workers during both installation and removal procedures, the potential for fiber release during normal use was inherent to the product’s function.

Over time, packing subjected to heat cycling, pressure, and chemical exposure could degrade, increasing the friability of the material and the likelihood that routine maintenance contact would generate airborne asbestos dust.

How Workers Were Exposed

Industrial workers who worked with or near Raytech asbestos packing faced potential asbestos exposure through several common occupational pathways. The most direct exposure occurred during installation and removal of packing material from pumps, valves, and mechanical seals. Workers performing these tasks typically cut packing to length, compressed it into packing glands, and tightened or adjusted fittings—activities that could disturb chrysotile fibers and generate visible dust in enclosed or poorly ventilated spaces.

Removal of old or worn packing was particularly hazardous. Workers used picks, hooks, and other tools to dig degraded packing material out of pump and valve glands. This process could release concentrated quantities of deteriorated asbestos fibers, especially when the packing had hardened or baked onto metal surfaces through years of heat exposure.

Beyond the workers directly handling packing material, bystander exposure was a documented concern in industrial environments. Machinists, pipefitters, millwrights, boilermakers, and general plant workers in the vicinity of packing maintenance activities could inhale airborne fibers without directly touching the product. In large industrial facilities where multiple maintenance tasks occurred simultaneously in shared spaces, asbestos fiber migration from one work area to another contributed to broader workforce exposure.

The repetitive nature of packing replacement in industrial settings is significant from an exposure standpoint. Pump and valve packing required regular inspection and periodic replacement as part of standard preventive maintenance programs. Workers assigned to maintenance roles in facilities that stocked Raytech asbestos packing were likely exposed not once but repeatedly, in some cases across decades of employment. Cumulative exposure of this kind is associated with increased risk of asbestos-related disease.

Asbestos-related diseases attributed to occupational exposure—including mesothelioma, asbestosis, lung cancer, and pleural disease—typically have latency periods of 20 to 50 years between exposure and diagnosis, meaning workers exposed to Raytech asbestos packing during its production years may only now be receiving diagnoses.

Raytech asbestos packing is associated with civil litigation rather than a dedicated asbestos bankruptcy trust fund. No Raytech-specific asbestos trust fund has been established for this product. Individuals seeking compensation for asbestos-related illness connected to Raytech packing must pursue claims through the civil court system.

Litigation records document claims brought against Raytech and related entities by industrial workers and their families alleging that exposure to asbestos-containing packing products caused mesothelioma, lung cancer, asbestosis, and other serious asbestos-related conditions. Plaintiffs alleged that Raytech knew or should have known of the health risks associated with chrysotile asbestos in its packing products and failed to adequately warn workers or provide sufficient instructions for safe handling.

Plaintiffs alleged that the absence of hazard warnings on product packaging and in sales materials left workers without information necessary to take protective measures, and that this failure contributed directly to harmful exposures over many years.

Workers and family members pursuing legal action based on exposure to Raytech asbestos packing should document their employment history, identify the specific facilities and time periods of exposure, and gather records connecting those worksites to Raytech packing products. Medical records establishing an asbestos-related diagnosis are also essential to building a claim.

Because multiple manufacturers produced asbestos packing during the same period, an experienced asbestos litigation attorney can assess whether claims against Raytech, other packing manufacturers, facility owners, or equipment manufacturers are appropriate based on the specific circumstances of exposure. Asbestos litigation has statutes of limitations that vary by state and typically begin running from the date of diagnosis, making timely consultation with legal counsel important for anyone recently diagnosed with an asbestos-related disease.