Narcolite Refractory Cement

Product Description

Narcolite Refractory Cement was a high-temperature binding and sealing compound manufactured by Keene Corporation, a diversified industrial products company that operated across multiple sectors throughout much of the twentieth century. Refractory cements of this type were engineered to withstand extreme thermal conditions, making them standard materials in industrial environments where conventional adhesives, mortars, or sealants would fail under sustained heat exposure.

Products in this category were used extensively in the construction, maintenance, and repair of furnaces, kilns, boilers, incinerators, and other high-temperature equipment found in steel mills, power generation facilities, chemical plants, paper mills, and similar heavy industrial settings. Narcolite Refractory Cement was applied as a bonding agent between refractory bricks and other heat-resistant components, as a patching compound for damaged refractory linings, and as a sealant around openings, joints, and penetrations in high-heat structures.

Keene Corporation, which also manufactured or distributed products across flooring, pipe insulation, spray fireproofing, and valve and steam trap product lines, was among the industrial suppliers whose asbestos-containing materials became the subject of widespread occupational disease litigation beginning in the latter decades of the twentieth century. Narcolite Refractory Cement represents one product within that broader portfolio identified in legal proceedings.

Asbestos Content

Refractory cements produced during the peak decades of asbestos use commonly incorporated asbestos fibers as a functional ingredient. Asbestos was valued in refractory applications for several properties: its resistance to thermal degradation, its ability to reinforce the cement matrix, its low thermal conductivity, and its capacity to reduce cracking and spalling under repeated heating and cooling cycles. Chrysotile, amosite, and other asbestos fiber types were used in refractory formulations depending on the performance requirements of the application.

Litigation records document that Narcolite Refractory Cement contained asbestos as a component of its formulation. Plaintiffs alleged that Keene Corporation incorporated asbestos-containing materials into Narcolite and related products, and that the company had access to information about the health hazards of asbestos exposure prior to the period when adequate warnings were provided to workers and end users. Specific fiber percentages as formulated are reflected in litigation and product documentation associated with claims brought against Keene Corporation and its successors.

How Workers Were Exposed

Industrial workers encountered Narcolite Refractory Cement through direct application and handling, as well as through secondary exposure during maintenance, demolition, and repair work in facilities where the product had been installed. The nature of refractory cement use meant that exposure could occur across multiple phases of a product’s life cycle.

Mixing and Application. Workers who mixed dry refractory cement powder with water or other activating agents were exposed to airborne dust generated during the process. Pouring, scooping, and agitating dry cement powder releases fine particulate matter, and in asbestos-containing formulations, that particulate includes respirable asbestos fibers. Application by trowel, brush, or gloved hand against refractory surfaces could also disturb the material and generate fiber release.

Cutting and Shaping. Where refractory cement was applied in areas requiring trimming, cutting, or reshaping after partial or full cure, mechanical action against the hardened material could release asbestos fibers. Workers using hand tools or power equipment in these tasks were at risk of significant fiber exposure.

Maintenance and Repair. Industrial furnaces, boilers, and kilns require periodic maintenance and relining. Workers tasked with breaking out old refractory linings—including cemented joints and patched areas—worked in conditions that generated substantial dust. Litigation records document that workers in ironmaking, steelmaking, glass manufacturing, and other industries performed these tasks in confined or partially enclosed spaces where dust levels could accumulate.

Demolition. Facilities that were demolished or extensively renovated brought workers into contact with aged refractory systems that had been installed with asbestos-containing cements over many decades. Wrecking, jackhammering, and debris handling in these contexts represented high-exposure scenarios.

Bystander Exposure. Industrial workers generally—including those who worked in proximity to refractory installation or repair crews without directly handling Narcolite Refractory Cement—could be exposed to airborne fibers released during nearby work activities. Plaintiffs alleged that inadequate dust controls, improper ventilation, and a lack of worker warning contributed to exposures that extended beyond those directly handling the product.

The trades and occupations identified in litigation records involving Narcolite Refractory Cement include workers in industrial settings broadly: boilermakers, furnace operators, maintenance technicians, insulators, pipefitters, ironworkers, and general laborers assigned to facilities where refractory systems were constructed or maintained. Because Keene Corporation’s product portfolio spanned flooring, pipe insulation, fireproofing, and steam system components in addition to refractory materials, workers in large industrial plants may have encountered multiple Keene-manufactured or distributed asbestos-containing products in the same workplace.