Asbestos Gaskets & Valve Packing: Exposure & Trust Fund Compensation
Asbestos gaskets sealed every flanged pipe joint, pump housing, valve body, and compressor seal in industrial systems and on Navy ships from the 1940s through the 1980s. Replacement was routine maintenance — and routinely exposed pipefitters, machinists, and Navy personnel.
Were you exposed to gaskets & valve packing?
What is asbestos gaskets & valve packing?
Asbestos gaskets and valve packing were the standard sealing materials for high-temperature, high-pressure industrial and marine applications throughout the asbestos era. Garlock Sealing Technologies was the dominant manufacturer, with extensive product lines including compressed asbestos sheet gaskets, ring gaskets, valve stem packing (asbestos rope and braided packing), and compression seals. Other manufacturers including Anchor Packing, John Crane, and Federal-Mogul (Fel-Pro automotive gaskets) competed in different sub-markets.
Asbestos was the gasket fiber of choice because of its unique combination of properties: high-temperature stability, chemical resistance, structural flexibility, and ability to seal under high pressures. Replacement was routine maintenance — every flanged pipe joint, pump housing, and valve body required periodic gasket replacement, and each replacement involved cutting away old gaskets (generating dust) and fitting new gaskets to size.
Manufacturers and bankruptcy trusts that cover this product
The following asbestos manufacturers produced gaskets & valve packing products during the asbestos era and now have bankruptcy trusts that compensate exposed claimants:
Exposure mechanism
Gasket and packing work generated exposure through:
- Cutting old gaskets — removing aged, often hardened gaskets required scraping with knives, files, or grinders, generating asbestos fiber dust
- Cutting new gaskets to size — sheet gaskets were cut to fit specific flange dimensions, generating dust during cutting
- Valve packing replacement — cutting and inserting asbestos rope/braided packing into valve stems
- Pump and compressor maintenance — mechanical seals and packing replacement
- Engine gasket work — head gasket, valve cover, exhaust manifold replacements all involved scraping cured asbestos gasket material
Common occupations exposed to gaskets & valve packing
- Pipefitters
- Steamfitters
- Machinists
- Navy Machinist's Mates (MMs)
- Industrial maintenance workers
- Refinery workers
- Auto mechanics (engine gaskets)
Frequently asked questions
Did all gaskets contain asbestos?
Most compressed sheet gaskets, ring gaskets, valve packing, and high-temperature gaskets manufactured in the U.S. before approximately 1985 contained asbestos. Some specialty gaskets used non-asbestos materials, but asbestos was the dominant fiber. Workers from the 1940-1985 era who regularly handled gaskets typically have eligible exposure.
I was a Navy MM (Machinist's Mate). How significant was gasket exposure?
Very significant. Navy MMs replaced gaskets daily as part of routine engineering-space maintenance. Garlock and similar gaskets sealed every flanged joint in shipboard piping systems, pumps, and valves. MMs are among the highest-exposure Navy ratings and typically file with Garlock plus the other Navy-relevant trusts.
Were Fel-Pro automotive gaskets asbestos?
Many Fel-Pro automotive gaskets manufactured before the late 1980s contained chrysotile asbestos. The Federal-Mogul Trust covers Fel-Pro gasket exposure. Auto mechanics who scraped, sanded, or replaced engine gaskets routinely have eligible exposure.
I was a refinery pipefitter for 25 years. What's my Garlock claim like?
Refinery pipefitters have very strong Garlock claims due to constant gasket and packing replacement on high-temperature process piping. File with Garlock plus the broader pipefitter trust package (insulation manufacturers, refinery-specific trusts).
Why does Garlock require detailed product documentation?
The Garlock bankruptcy was contentious due to allegations of "double-dipping" claims. The 2017 trust addressed this through enhanced documentation requirements. Filings today require evidence specifically identifying Garlock product exposure — employment records showing gasket work duties, witness statements, supply records, or military service records for shipboard exposure.
Were you exposed to asbestos gaskets & valve packing?
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