Lk-20 (Armstrong Cork)

Documents in our library describe Lk-20 (Armstrong Cork) as “block and pipe covering”.¹ It was rated for temperatures up to 1800 °F.¹

Asbestos claims

If you or a family member worked with or around Lk-20 (Armstrong Cork) and later developed mesothelioma or another asbestos disease, a claim may be paid by the Armstrong World Industries asbestos trust. Free case review.

What each document says

Every statement about Lk-20 (Armstrong Cork) in the documents, in each document's own words.

Union Carbide Chemicals Company: Thermal Insulation and Accessories Manual (1962)

• Description: “Hydrous calcium silicate with a small amount of asbestos fibers. Good compressive strength. Useful as fire protection insulation. Rigid.”, p. 79¹
• Form: “Block and Pipe Covering”, p. 79¹
• Asbestos content: “Hydrous calcium silicate with a small amount of asbestos fibers”, p. 79¹
• Temperature limit: “Atmos to 1800”, p. 79¹

Kind of product

We list Lk-20 (Armstrong Cork) with pipe covering and block insulation, from how the documents describe its form. That page explains how such products exposed workers.

Trades that worked with products like it: Insulators and Insulation Workers, Pipefitters and Plumbers.

See also

• Armstrong Cork: the company's history, documents, people, products and plants
• Armstrong Cork on our products page: what the documents say about the company's asbestos products, with sources

References

1. Union Carbide Chemicals Company: Thermal Insulation and Accessories Manual (October 1, 1962), p. 79.