Document vV5Q68kbx71vw3NZBrnbKaXjZ

THE I EXHIBIT i UC-3 noRfe mu cm d cuul nmn CASTOR OIL COMPANY uromic. utv itnsrr. vtm July 3, 1972 Me. J. Gallagher DuPont Company Marshall Laboratories P.0. Box 3838 3300 Grays Ftrry Avenue Philadelphia, Pennsylvania 19143 Dear Hr. Callagher: Ve ere responding co your concern about the presence of asbestos in Thixseal A and possible health hazards. The asbestos vc use is a unique typo available frra jnse one mine In California, tt Is produced and pruccssed by tLe Union Carbide Corporation. They have run cictsnslvo uadical tests on this asbestos (Celldria RC-1C4) and ve have their assurance it is non^carelnogbaic. Vory truly yoi*r, MiS/beli ,*'7<u / a M.K. Saleh, Ki-.tagsr Technical Division '275 OOP 0902776