Document aBRydmp3E1GXJZErNrx9VaN5N

FILE NAME Keene KNE DATE 1961 Aug 18 DOC KNE057 DOCUMENT DESCRIPTION Office Memo RE Spray Wool & Response to Request for Information Form No. 4 cc Messrs Stevens O'Connell O'Connell VUERL Wilson H. E. BALDWIN TRENTON N.J. BEH BALDWIN CHRET HILL OFFICE CORRESPONDENCE ; / Mr. E. R. Thompson Re Spray Wool THIS DOCUMENT CONTAINS DISCOVERABLE et ptt My " 8/18/01 . INTREC Date NJEN CON INC mot NO 8/18/01 Date CONTAINS 8/18/01 INTREC LINDE oe WO SaEat ak NL eee 280. NJEN SCHOOL s KLUNGON KLUNGON 7 HILF NG 15 4. PURSUE ARTEAMS nS SE > CONFIDENT ALGY AGREEMENAGRETMENT AGREEMENT VYNICHTVYNICHT POR PROTECTIE THE PROTECTIE ORDE ENTERED OL - ENTITLED RE STATE AND REGENTS BUILDING BUILDING BESTOS CASES FILE NO 99081 AND 99082 ON NOVEMBER 5 1986 In answer to your recent request for more information concerning spray wool we are summarizing briefly the materials used and probable mixing procedures BEH's spray wool will be formulated approximately as follows Materials Percent by Weight G_ra ,nulated mineral 5R Asbestos wool Bentonite Clay Sodium Nitrite - POWDER Oil - SPRAY 7022 5 1 2 It is possible that in addition to the above ingredients two or three percent of Portland cement might also be used PLAINTIFF'S 303.0 PLAINTIFF'S PLAINTIFF'S PLAINTIFF'S PLAINTIFF'S f auwo^ The exact mixing procedure has not been finalized however it is definitely indicated it might be desirable to blow mineral wool and the asbestos together This gives an intimate mix and makes the product have improved texture after spraying After these materials are blown together the balance of the materials would be added and mixed in.a rotating mixer similar to that used in making finishing and insulating cements Since the expected vol_ ume is considerable it is probably advisable to mix on a -- --- tinuous basis rather than by batches We are experimenting using air to mix all the ingredients at the same time It is expected that the choice between two methods of mixing will be made before the end of next after further work together the week In developing equipment for mixing spray wool it is very important to keep in mind that asbestos dust would have to be prevented from flying in the air since it is very dangerous to health of any operating personnel Asbestos fiber and dust every every preIS DOCUMENTS CONTAINS NODISCOVERent NONDISCOVERent preIS DOCUMENTS PROPRIETARY CONTAINS CONTAINS THIS NONDISCOVERent NONDISCOVERent the in the aiBUCED aiBUCED THE CASE NED NED DEPENDENT SCHOOL causes silicosis and material material from getting getting DISTRICT N^ 622 / PORASLAKTE PORASLAKTE DESTRUCTION DESTRUCTION INC FILE 5-86 T FCB se aU TERMS OF THE CONFIDENTIALITY CONFIDENTIALITY AGEAGGEGEVEEN VAGEEGEVNEN ey ICH EXCOR 10348755 PORATES THE PROTECTIVEPROTECTIVE GRUEKIN GRUEKIN FRED IN CASE ENTITLED RE STATE STATE AND REGENTS BUILDING E 3. ASBESTOS CASES FILE NO 99081 AND 99082 ON 99082 NOVEMBER 5. 1986