Document K6r3Nkw29R1Y7Z6a2eOwgmgnr

PLAINTIFF'S \ / ROBERT E. BUCKLEY vice tsiBiNi-ALts PITTSBURGH CORNING CORPORATION ONE GATEWAY center PITTSBURGH. PA 15222 January 15, 1968 Mr. Kenneth Keuper Room 1240, Engineering Dept. Loviers Building E. I. Dupont Wilmington, Delaware Dear Mr. Keuper: UNIBESTOS, the high temperature insulation manufactured by Pittsburgh Corning Corporation is composed of fibers of Amosite asbestos. UNIBESTOS contains no Chrysotile or Crocidolite fibers. It is composed exclusively of the ferrous magnesium silicate fiber with suitable fillers and binders. Typical analysis of the main asbestos groups are: Chrvsotile Si02 FeO Fe,03 MgO Na20 h2o All ocher >0, K2O, C02, Al,0?) 39.8 1.1 0.8 39.5 0.1 12.0 6.7 100.0 Crocidolite 51.4 20.3 17.5 1.4 6.2 1.9 1.3 100.0 Amosite 49.3 40.9 0.4 5.7 0.2 1.9 1.6 100.0 Please let me know if there is any additional information needed on this subject. We will be pleased to share any we may have. Very rrtfly your^ REB:Sr Robert E. Buckley / Vice President Sales DUP 1120207 1-13-00 1MR. (iuPtR: Perhaps t' his copy of Dr. Davis' / ort will be a useful I addition to your files. R. E. BUCKLEY ( S DBENDANTS ] EXHIBIT U- DUP 1120208