Document 5DRvMaMwgYJMkBoL5YMp4jeXR

FILE NAME: ALCOA (ALC) DATE: 1964 Aug 21 DOC#: ALC052 DOCUMENT DESCRIPTION: Letter to Johns Manville iU tg a a ttlf 1964 S' / --' / .^Jotms jNanvfll.e Oosp..., .-**wv*.- *, Twenty-teo S* Fortieth Street New Yode 16, MewYork D m Dr Seltht -_ ~= -~ ~ r ' v~v il A* jrpa doubtlsssly are aware, others-exists in Alcoa a continuously .em^liw -MaBi with lirtartati'< <nA.tr<1 rhqyrfi p V--, of Joha4taB9illa** product.CMarlnlta^ For a considerable period wehavsbeen coafuad {^conflicting stories about the cosposition Jof^thUaatarial ..BeeetOiierxeepoaAmoe h u deepened ur confusion and tmlatcd our already-aroased curiosity. We would certainly appreciate any clarification that you .are Able to provide Our pxoblew Is with Karinite dust associated with sawing and uachlnlng operations* Has usual cowplaint is upper respiratory irritation Several nun have cenplafned to their foresten that they "experience c o m discosfoct on account of dogging of mine* and difficulty in breathing* One indicated it irritated the skin on his aras and face* Another at the etart of hie work with Maxinito, Indicated sons respiratory disoemfort and his face was dry and rod Unfortunately we had no opportunity to pet a nodical evaluation on any of the effected Because of our workers* cowplaiats we rechecked with Johns-Manvllle and were advised that an epoxy rosin was present. We were satisfied .....because ;thu effects were conpatlble with epoxies and we .reconstnrtod .. { yr/jdatipi-^ahnres accordingly.vsBscshtlyand interuittehtlya-^ "^^v'have^biwn^ldd -that'->the^ilr`l A ' ^ n p o o ^ K p r d s e n t ^ X f .' ';~:*,ths^cass^slt;leavus_-sose:;of^ourrguestloas still''tmanswered^M<iei^^r^: "mr people we wouldpurhaps be willing to leave' r* -j Ms ara presently aware of the presence of asbestos dlatoeacous earth and an inorganic binder (perhaps a silicate) in Karinite hbat w would like to know it if we should be handling it differently than we would asbestos alone, need we be concerned with factors other than jmeunoeoaioees? Are there (or were there) preseat Materials that are likely to present other respiratory coapllcatlons or dematologioal probles7 What precautionary sures does Jobns-Manvlle observe when handling this waterial? L. T .T .v ^ v J' y r w w r : ::v ..e ARD 043002 Bwawgter F O X 042882 Dr. K. W. Smith Page 2 August 21 1964 I*# sorry if our interest nay appear disproportionate to the problem. However through a series of unfortunate events we have bred and nurtured a Frankenstein monster. With understandable bias Z Mild prefer that the monster be eliminated. Can you help us out with this problem? Sincerely T. B. Bouncy Asst. Chief industrial Hygienist ZBBtBB cet Mr.MJ.Caprlo ARO 043003 \ Sa-m' * O X 042883