C. L. Sheckler to D. B. Wingerter on Caution Labels for Sil-O-Cel and Marinite Insulation Products (1968)

A two-page memo of May 16, 1968, from C. L. Sheckler of Johns-Manville's Environmental Control Department to D. B. Wingerter at division headquarters on caution labels for insulation products: Sil-O-Cel Super Brick, C-22 Brick and C-3 Aggregate (made of calcined diatomaceous earth) and Marinite 23, 36, 65 and Molten Metal. For the calcined products he proposes "CAUTION! THIS PRODUCT CONTAINS SILICA." Because the Marinites "contain chrysotile and amosite asbestos fibre," he proposes "CAUTION! THIS PRODUCT CONTAINS ASBESTOS FIBRE," warning that inhaling asbestos "in excessive quantities over a long period of time may be harmful" and advising approved respirators where ventilation is poor.

What it shows

Sheckler adds: "Consistent with our labeling procedures with other products, I assume that International shipments will not be labeled." The same month, J-M's fiber division was deciding to label its raw fiber bags for all customers (see Hutcheson's memo of May 3, 1968), while export products were still to go unlabeled, as in Pocius's memo of October 1967. Sheckler asks H. M. Jackson and H. M. Ball for their opinions.

In Johns-Manville's chronology

Johns-Manville's own chronology of what the company knew describes this document as follows:

Memorandum to D.B. Wingerter dated 5/16/68 regarding labeling of insulation products containing Celite states "consistent with our labeling procedures with other products, I assume that International shipments will not be labeled."

Related documents

• H. M. Jackson to K. V. Lindell Approving the Proposed Caution Label for Asbestos Fiber (1968)
• J. R. M. Hutcheson to N. W. Hendry on a Caution Label for Asbestos Fiber Bags (1968)
• W. E. Hodgson to S. Lane and C. H. Jensen to E. C. Lindstrom on Leaving Caution Labels Off Shipments to Canada (1965)