OCF Kaylo 20 Pipe Insulation

Product Description

OCF Kaylo 20 was a rigid, high-temperature pipe insulation product manufactured during a period of intense industrial expansion in the United States. The product was produced between approximately 1959 and 1972, a span during which asbestos-containing insulation materials were widely specified for industrial piping systems, boilers, and mechanical equipment across power generation facilities, refineries, chemical plants, shipyards, and manufacturing operations.

The “Kaylo” product line had a longer commercial history that predated the OCF Kaylo 20 designation. The Kaylo brand was originally developed by the Owens-Corning Fiberglas Corporation, which marketed the material heavily in industrial settings. ASARCO, a company more broadly known for its mining and smelting operations, became associated with the manufacture of this product during its production window. The OCF Kaylo 20 designation identified a specific formulation within the Kaylo line, engineered to meet the thermal performance requirements demanded by high-heat industrial applications.

Pipe insulation products in this category were typically manufactured in molded half-section forms designed to fit standard pipe diameters. These rigid sections could be cut, shaped, and fitted around pipe runs of varying lengths and configurations. The product was distributed to industrial job sites, fabrication shops, and maintenance facilities where it was installed, repaired, and removed by workers across numerous trades.

Asbestos Content

OCF Kaylo 20 contained chrysotile asbestos as a component of its formulation. Chrysotile, sometimes referred to as white asbestos, is a serpentine-group mineral fiber that was the most widely used form of asbestos in commercial and industrial products throughout the twentieth century. Its flexible, fine-fibered structure made it well suited for incorporation into insulation products, where it contributed to thermal resistance, structural integrity, and fire-resistant properties.

In pipe insulation products such as OCF Kaylo 20, asbestos fibers were integrated into a calcium silicate or similar binding matrix. This composite structure allowed the finished product to maintain its shape under mechanical stress while resisting degradation at high operating temperatures. The presence of chrysotile throughout the material meant that the product could release respirable fibers whenever its physical integrity was disturbed—whether through routine installation, cutting, drilling, or removal.

Litigation records document that the asbestos content of Kaylo-line products, including the OCF Kaylo 20 formulation, was a central subject of dispute in personal injury and wrongful death proceedings brought by affected workers and their families. Plaintiffs alleged that the manufacturers and distributors of these products were aware of the potential health hazards associated with asbestos fiber exposure and failed to provide adequate warnings to the workers who regularly handled the material.

How Workers Were Exposed

Industrial workers generally represent the primary population documented as having been exposed to asbestos fibers released by OCF Kaylo 20 during its production years and beyond. Exposure occurred across multiple stages of the product’s lifecycle, from initial installation through long-term maintenance and eventual removal and replacement.

During installation, workers cut rigid pipe insulation sections to length using saws, knives, or other cutting tools. These operations produced visible dust clouds as well as fine airborne fibers not readily visible to the naked eye. Workers who applied insulating cement or finishing jackets over installed sections also handled disturbed material and worked in proximity to cutting operations performed by colleagues.

Maintenance and repair work generated significant exposure opportunities throughout the operational life of insulated pipe systems. When sections of insulation were damaged, workers removed deteriorated material—often breaking it apart by hand or with tools—before applying replacement insulation. Older, weathered insulation materials were generally more friable than newly installed products, meaning they crumbled more readily and released fibers more easily under handling.

Removal operations, whether during facility decommissioning, equipment upgrades, or construction alterations, exposed workers to concentrated quantities of airborne asbestos fibers as intact insulation systems were dismantled. Workers in adjacent trades—pipefitters, boilermakers, millwrights, and general laborers—could be exposed even when they were not directly handling the insulation, simply by working in spaces where OCF Kaylo 20 was being disturbed.

Litigation records document testimony from industrial workers who described routinely working with and around pipe insulation products identified as Kaylo or OCF Kaylo materials. Plaintiffs alleged that no warning labels were present on the product, that no respiratory protection was provided or required, and that supervisors and employers did not inform workers of the known connection between asbestos fiber inhalation and serious respiratory disease.

The diseases associated with occupational asbestos exposure that have been documented in litigation involving OCF Kaylo 20 and similar products include mesothelioma, a rare and aggressive cancer of the pleural and peritoneal membranes; asbestosis, a progressive fibrotic lung disease; lung cancer; and other asbestos-related pleural conditions. These diseases typically manifest decades after initial exposure, meaning that workers exposed to OCF Kaylo 20 during its production years between 1959 and 1972 may only have received diagnoses in subsequent decades.

This article is provided for informational and reference purposes. It does not constitute legal advice. Individuals with potential asbestos-related claims should consult a qualified attorney.