KR Super D Block Insulation

Product Description

KR Super D Block Insulation is an industrial insulating product that appears in asbestos litigation records in connection with high-temperature industrial applications. Based on available documentation, the product was marketed and used in settings where thermal insulation was critical, including pipe insulation and refractory applications in heavy industrial environments.

The “block” format was a common construction in mid-twentieth century industrial insulation. Block insulation of this type was typically manufactured in rigid or semi-rigid sections designed to be fitted around pipes, boilers, furnaces, kilns, and other high-heat equipment. This form factor allowed insulation to be cut, shaped, and secured around irregular surfaces, making it a practical choice for the complex piping and refractory systems found in steel mills, chemical plants, refineries, and similar industrial facilities.

Litigation records document that KR Super D Block Insulation was present at various industrial worksites during periods when asbestos-containing thermal insulation products were in widespread use. The manufacturer associated with this product in litigation filings has been identified in the context of affidavit-based claim documentation, a process by which claimants and witnesses formally attest to product identification and exposure history.

Because detailed manufacturing records, production dates, and complete ownership histories for products of this type are not always publicly available outside of litigation discovery, some aspects of the product’s commercial history remain documented primarily through plaintiff testimony, co-worker affidavits, and industrial site records introduced in legal proceedings.

Asbestos Content

Litigation records document that plaintiffs alleged KR Super D Block Insulation contained asbestos as a component of its thermal insulating formulation. Asbestos was a widely used additive in block insulation products throughout much of the twentieth century because of its resistance to heat, fire, and chemical degradation. Chrysotile, amosite, and other regulated asbestos fiber types were commonly incorporated into products of this category.

Plaintiffs alleged that the asbestos content in block insulation products of this type was substantial enough to pose a significant release hazard during normal handling, installation, and maintenance activities. In refractory and pipe insulation applications specifically, the mechanical demands placed on block insulation — cutting, shaping, fitting, and securing — were identified in litigation as primary mechanisms by which asbestos fibers became airborne.

The U.S. Environmental Protection Agency (EPA) and the Occupational Safety and Health Administration (OSHA) have established that asbestos-containing insulation materials are capable of releasing respirable fibers when disturbed. OSHA’s asbestos standards, codified at 29 C.F.R. § 1910.1001 (general industry) and 29 C.F.R. § 1926.1101 (construction), recognize thermal system insulation as a category of material with significant fiber-release potential during disturbance.

The Asbestos Hazard Emergency Response Act (AHERA) framework similarly identifies friable and non-friable asbestos-containing materials in industrial settings as requiring careful management and abatement procedures, acknowledging the health risks associated with fiber release from such products.

How Workers Were Exposed

Litigation records document that industrial workers across a range of trades and job classifications alleged exposure to asbestos fibers released during work with or near KR Super D Block Insulation. The product’s presence in pipe insulation and refractory applications placed it in environments where multiple trades worked in close proximity, a factor that plaintiffs alleged contributed to bystander as well as direct exposure.

Workers most commonly identified in litigation as having been exposed to block insulation products of this type include:

  • Pipefitters and pipe insulators, who installed and removed block insulation sections from piping systems, cutting the material to size and securing it in place
  • Boilermakers and refractory workers, who worked with block insulation in high-temperature equipment such as boilers, kilns, and furnaces
  • Maintenance and repair personnel, who disturbed existing insulation during routine servicing or emergency repair of industrial systems
  • Industrial laborers and helpers, who worked in proximity to insulation installation and removal activities, often without respiratory protection

Plaintiffs alleged that the dry, rigid composition of block insulation products made them prone to generating visible dust during cutting and fitting operations. In enclosed industrial spaces with limited ventilation — conditions common to many mid-century industrial facilities — plaintiffs alleged that airborne fiber concentrations could remain elevated for extended periods, exposing workers who were not directly handling the material.

OSHA’s recognition of thermal system insulation as a presumed asbestos-containing material (PACM) in many industrial contexts reflects the documented fiber-release potential associated with this category of product. Workers who were employed in facilities where KR Super D Block Insulation was used during its period of installation and subsequent maintenance are among those whose exposure histories have been examined in litigation.

KR Super D Block Insulation is classified as a Tier 2 product for purposes of legal reference on this platform, meaning that claims associated with it are pursued through civil litigation rather than through an established asbestos bankruptcy trust fund. No dedicated trust fund has been identified in connection with this product based on currently available public documentation.

Civil Litigation

Litigation records document that individuals who alleged injury from exposure to KR Super D Block Insulation have pursued claims in civil courts. Plaintiffs in these cases alleged that exposure to asbestos fibers released by the product caused serious and recognized asbestos-related diseases, including:

  • Mesothelioma, a malignant cancer of the pleural or peritoneal lining associated with asbestos fiber inhalation
  • Asbestos-related lung cancer, particularly in individuals with documented occupational asbestos exposure
  • Asbestosis, a progressive fibrotic lung disease resulting from accumulated asbestos fiber deposition
  • Pleural disease, including pleural plaques and pleural thickening

Plaintiffs alleged product liability, negligence, and failure to warn as legal theories in connection with this product. The affidavit-based documentation process associated with this manufacturer underscores the importance of detailed exposure history records in supporting such claims.

Steps for Potential Claimants

Individuals who believe they were exposed to KR Super D Block Insulation, or family members of deceased workers with a relevant exposure history, are advised to:

  1. Consult with an attorney who specializes in asbestos litigation and has experience with industrial product identification
  2. Compile employment and medical records documenting worksites, job duties, and any diagnosed asbestos-related condition
  3. Identify co-workers or other witnesses who may be able to provide affidavit testimony regarding product identification and exposure circumstances
  4. Be aware that asbestos claims are subject to statutes of limitations that vary by jurisdiction and that generally begin running from the date of diagnosis or discovery of an asbestos-related condition

Because litigation involving industrial insulation products of this type may involve multiple defendants across a claimant’s full exposure history, experienced legal counsel is essential to identifying all potentially liable parties and applicable legal remedies.