The Pittsburgh Corning asbestos trust and Unibestos insulation

A Pennsylvania company, a Pennsylvania plant, and the trust that now pays its asbestos claims. Reviewed by Michael C. Schafle, Esq.

Michael C. Schafle, Esq., Pennsylvania mesothelioma lawyer
Michael C. Schafle, Esq. · Philadelphia

The Pittsburgh Corning asbestos trust pays claims to people who developed mesothelioma or another asbestos disease after exposure to the company’s asbestos products, above all Unibestos pipe insulation. Pittsburgh Corning was a Pennsylvania company, headquartered in Pittsburgh, and it manufactured Unibestos at a plant in Port Allegany, Pennsylvania. After the company entered bankruptcy in the early 2000s, a trust was eventually created to pay its asbestos claims.

Who Pittsburgh Corning was

Pittsburgh Corning was formed as a joint venture of two glass companies, PPG Industries and Corning, and made its name in glass building products. Its asbestos liability comes chiefly from Unibestos, a pipe insulation made with amosite asbestos that the company produced during the 1960s and early 1970s. Amosite is one of the amphibole forms of asbestos, and Unibestos was used in high-heat industrial settings: around steam lines, in shipyards, and in power plants. Cutting it to fit a pipe run, or tearing out old sections during maintenance, put its dust into the air of the whole work area, which is why claims come from entire crews, not only the insulators who handled it directly.

The Pennsylvania connection is double

Two threads tie this trust to Pennsylvania directly. First, the company was headquartered in Pittsburgh, in the middle of the industrial economy its products served. Second, Unibestos was manufactured in Port Allegany, a small town in McKean County, which means plant workers and their families were exposed at the source, not only at the job sites where the finished insulation was installed. Claims connected to Pittsburgh Corning therefore come from two directions: the people who made Unibestos, and the far larger group who installed it, removed it, or worked near it across the state’s shipyards, mills, and power plants. Our index of Pennsylvania asbestos exposure sites maps many of those workplaces.

The bankruptcy and the long road to the trust

Pittsburgh Corning filed for Chapter 11 protection in the early 2000s. Its bankruptcy became one of the longer-running asbestos reorganizations, and the trust did not begin accepting claims until years later, after the plan was finally confirmed. That history is worth knowing for one reason: the trust exists now, it is funded, and it accepts claims under written procedures. The delay that frustrated earlier claimants is behind it.

What a Pittsburgh Corning trust claim requires

As with every asbestos trust, the core requirements are conceptual and consistent: a documented diagnosis of an asbestos-related disease, evidence connecting the person to a covered product such as Unibestos, and a claimant with standing, which after a death means the estate and family. Insulators, pipefitters, shipyard workers, power plant workers, and laborers on tear-out jobs are the trades most often connected to Unibestos.

The timeline behind these claims is always long. Mesothelioma typically appears 20 to 50 years after exposure, according to the National Cancer Institute (asbestos fact sheet), so a worker exposed to Unibestos during its production years may be diagnosed only now. That gap is exactly what the trust’s criteria anticipate, and it does not weaken a claim. Claims can also be filed after a death, with the estate standing in the person’s place, and the trust review itself is administrative: records and paperwork, no courtroom. Payment amounts are governed by the trust’s current procedures and are not something we will quote or predict. Our trust payouts page explains how trust payments actually work.

How the trust claim and the lawsuit fit together

A Pittsburgh Corning claim addresses one company’s share. Mesothelioma cases almost always involve exposure to many products, so the full case pairs trust claims against bankrupt companies with a lawsuit against solvent ones, coordinated so that neither track undermines the other. Pennsylvania’s Fair Share Act (42 Pa. C.S. § 7102) governs how responsibility is apportioned in the courtroom, and trust submissions are discoverable, so consistency across every filing matters. The asbestos trust funds overview explains the whole structure, and the W.R. Grace trust page covers another trust that frequently appears in the same industrial work histories.

What this means for your family

If your family’s work history touches insulation, shipyards, power plants, or the Port Allegany plant itself, Pittsburgh Corning belongs on the list of trusts your lawyer screens. Nobody in the family needs to hunt for proof. Product identification at specific Pennsylvania sites has been developed through decades of litigation, and the firm applies that record to your facts.

To find out whether a Pittsburgh Corning claim belongs in your family’s case, request a free case review.

Legally reviewed by Michael C. Schafle, Esq. · Founding Partner, Green & Schafle, LLC · July 29, 2026

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