Document Rj9Goney1XDawZ0NvVNZ2pyBz

FILE NAME: Eagle-Picher (EP) DATE: 1965 DOC#: EP017 DOCUMENT DESCRIPTION: Letters  - * { .-4U-U p U^-C p (iOUkpi A p r il , 19^5 !r . itolor t A lo rsn d o r In d u stria l Ungili> c r in j Sua E h ip b u lld ln c a C ry Dock C o . Chester, Fcm sylvnnia - Doar Er. Alexander* Tetzt ln q alrz r c r ir d in g th s typa o f in s u la tin c c a ie r ia ls u sa i la chip construction fr o c 1513 to tha proson t d its adirssod te our ' . C in cin n ati o ffic , hao basa pnsocd o i t a c a fo r cor-sidc-- tio u . Frac the type o f u astlono' yoa bava o sk o d , i t le vitan t' th n t you ara * coacomed v ith th o lr p o te n tie l h sclth .b ccr.rd s, * ' cx p cricn u a Le lin it e d to thosa fe r r o c f in s b U ilo n s cm c^nly t o m as i-nor^anic bended b lo c k , orbante bande-J f o l t o , blnn!-:ot in sula tio n s th n t in co rp o re i v a ry s c i l i assunta o f lu b r ic a n te , cn i p lc s tic c c a s r .ts . A l l o.f tha so ru ta r la la ara b a se ! upcn c in a r r l fib s r s o r , se ycu.*buva 'c la s s a i th e c , - e Ir.orai v c o l . C in ce tho in i t i s i production o f S n slo -F ic h o r In su la t lena ia 19*7* tha cm oos tio n o f th o b e a le fib o r bea rrca ln a d abrut tha o m s . T y p icsl ehslcul in a ly s is f c r th ls o n tiru tin o vculd f a l l id .th lu tha . crcpai itio n ranco eiren baloei . Crlde S ilica (S iO j ` A len in a (MIO ) Ir a a C xid s (~e) : Calcitra Cxide (Ca) le ad Oxide (FIO) lin e 0=1=9 (ln3) 35 ta bD> 11 to 15 10 to 25 15 to S3* to P.S. 3 to 5 ^ Each of i> abav-j oxide elonsnis contribute to our c l z z o y fibers cni r* ra h-i3 it craa to cur attention that vsriers hmJlirrj anv cf tha Ea"1 b -Pichcr Insulations have been exposed to crystalin; oilier or load cu^x?y=da that could ba considered to bo injurious. In addition to `tho"basic fib^r, our insulations contain cinor cnounts \ of clay,' partlr.nl ccnsrrt, asbrstas fiber, rosin blnicro, end tho lit?. iGain, vhilo osca-of these adlol inured lento could bo r haalth hi r.-.ri if crporjro v o r ^ _ ' ... - . I. Soksri. .Me---- i p r U F, 1^55 Xn CoffflK^ v iih nany cthfir fern 3 of. itvarsjl Insulation?, tho inor-lutiana vs trcrafnctura ten l to 1 dusty. Scttj verVurs Knnilinj our natsr ia ls fln J that they cu st ac-.pjiro a iolem nao fo r thlo Ju o t vihlch cm crise dLsesrSorl In hnt* vo'ilhor or vhoro tho insulation is applied in a confined epare. In Cciaorsl, thoso dust pariicloo aro oo lar^o that respirators aro m i fo-uIr\>ij though i t bca bosn fcnran that ocr-o vorknan nx*o ooro ccafcrinblo than uslns th is cxpilpoont. . . * Ths Irnrulitin;: cfttvntf that vet n.-nuT.-civro hsv?, in ccscwn with thooa o f other rsnufsciurors, tho c h sn c to ristic o f b rin j alicjiln o . S c o worl=n sro p articu larly sensltlvo ta th is a lk a lin ity -md htvo dcv-sloped a doruatltis v^x>n prolor.sod dlroct contact v ith tho vat cononis, Kpvevor, through ths carraon cons-? usa o f rubber cloves to avoid dir3ct contact, d o m atitla ece^>lnints cease. Jn vLev o f the abjv9 relative cin cr hsasrd potential fo r tho n otorials wj Rsnefneturo, \n co not havo any nodical reports rolativa to th is m i ta r. ' ' V *' * Ke sporocisto bavins tha opportunity c f providing th is roviov; and va ' th at, i f you have cry additional jucatlcxan you consult vrith oar area repr ser.iativs, Jlr. V?.?* Duckvsrih, vho has had H7ro than ton years* - ' p m ctica l e.apericnc-? in t!xj application o f Fonle-Pichsr material a , . * E r . Daejevorth can bo reached a t b2 West fto vart Avenue, 'Lsnsdsvna, Pcnnoylvnhla. . ` . v Tours tru ly , '' Tho E?.glc--PIchor Cocpxny Fibors ^ ilino--I d Division PIL/lp cc: V*t9f Virr tael rw^r,* *-*---***> J . " . l-cisan i:.l. Paul I . Lo$S9 Karrasor o f Kaooarch - Fiboro April 6, 1965 M r . Robert Alexander Industrial Engineering Sun Shipbuilding & Dry Dock Co. Chester, Pennsylvania Dear Mr. Alexander: Your inquiry regarding the type of insulating materials used in ship construction from 1920 to the present date, addressed to our Cincinnati office, has been passed on to me for consideration. From the type of questions you have asked, it is evident that you are concerned with their potential health hazards. Eagle-Picher experience is limited to those forms of insulations commonly known as inorganic bonded block, organic bonded felts, blanket insulations that incorporate very small amounts of lubricants, and plastic cements. All of these materials are based upon mineral fibers or, as you have classed them, "mineral wool". Since the initial production of Eagle-Picher insulations in 1927, the composition of the basic fiber has remained about the same. Typical chemical analysis for this entire time would fall within the composition range given below: Oxides Percent by Weight Silica (Si02) Alumina (AlPC^) Iron Oxide (FeO) Calcium Oxide (CaO) Lead Oxide (PbO) Zinc Oxide (ZnO) 35 to 40% 10 to 15% 20 to 25% 15 to 23% to 0.?% 3 to 5% Each of the above oxide elements contribute to our glassy fibers and at no time has it come to our attention that workers handling any of the Eagle-Picher insulations have been exposed to crystaline silica or lead compounds that could be considered to be injurious. In addition to the basic fiber, our insulations contain minor amounts of clay, portland cement, asbestos fiber, resin binders, and the like. Again, while each of these added ingredients could be a health hazard if exposure were to a high concentration, such is not the case.