Zonolite Company / W. R. Grace & Co. plant at Minneapolis, Minnesota

Minneapolis, Minnesota, appears in W. R. Grace & Co.'s sworn answers in a 1987 lawsuit as a plant for two of its fireproofing products: Zonolite Mono-Kote MK-1, with "approximate dates of production" not known, and Zonolite Mono-Kote MK-3, with the approximate dates "1960-1972."¹ For each product Grace said only that it "was manufactured at some or all of the plants listed."¹

The same answers say MK-1 was "produced by Zonolite Company from 1959," and MK-3 by Zonolite Company from 1959 to 1963 and by Grace from 1963 until 1973; they do not say which company ran the Minneapolis plant in which years.¹ Grace described both as light beige cementitious fireproofing, MK-1 with "approximately 11.9% short fiber Chrysotile asbestos" and MK-3 with approximately 13.23 percent in one version and 12.18 in another; those figures describe the products in general, not Minneapolis's output in particular.¹

Location

Asbestos products made here

The products documents say were made at this plant, with the years a document gives for the product here. Each product's page has what the documents say about it, including its asbestos content.

• Zonolite Mono-Kote Mk-1 (W. R. Grace)¹
• Zonolite Mono-Kote Mk-3 (W. R. Grace) · 1960–1972¹

What each document says

Every statement about this plant in the documents, in each document's own words.

W. R. Grace's Answers to Plaintiffs' Interrogatories in Williams v. National Gypsum (1987)

• Asbestos products made: “Zonolite Mono-Kote (MK-1) (dates not known); Zonolite Mono-Kote (MK-3) 1960-1972. "The product was manufactured at some or all of the plants listed below."” (W.R. Grace & Co.), p. 43¹

See also

• Zonolite Company: the company's documents, people, products and plants
• W. R. Grace & Co.: the company's documents, people, products and plants
• Asbestos exposure sites in Minnesota

References

1. W. R. Grace's Answers to Plaintiffs' Interrogatories in Williams v. National Gypsum (October 15, 1987), pp. 43–45.