Zonolite Company / W. R. Grace & Co. plant at Chicago, Illinois

W. R. Grace's sworn answers in a 1987 lawsuit list "Chicago, Illinois (W. Chicago)" among the plants where its fireproofing Zonolite Mono-Kote MK-3 was made, with the years "1959-1973"; the answers say only that "the product was manufactured at some or all of the plants listed below."¹ The same answers say the product was made by Zonolite Company from 1959 to 1963 and by Grace from 1963 until 1973, without saying which company ran the Chicago plant.¹ Grace described Mono-Kote MK-3 in general as a "light beige cementitious material" containing approximately 13.23 percent or 12.18 percent short fiber chrysotile asbestos by weight (marked 7M and 7R in the answers); those figures describe the product, not Chicago'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-3 (W. R. Grace) · 1959–1973¹

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-3) 1959-1973. "The product was manufactured at some or all of the plants listed below."” (W.R. Grace & Co.), p. 44¹

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 Illinois

References

1. W. R. Grace's Answers to Plaintiffs' Interrogatories in Williams v. National Gypsum (October 15, 1987), pp. 44–45.