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FILE NAME Keene KNE DATE January 31 1973 DOC KNE037 DOCUMENT DESCRIPTION 1973 Jan 31 Letter regarding Availability of Asbestos Cal Products January 31 1973 * s E. C. Jones } H. I. Du Pont de Nemours Louviers Building Wilmington Delaware 19298 Dear Mr. Jones After a further check on the availability of Asbestos Free 51l Products I promised to supply you with certain information In line with that promise I submit the following 1 Asbestos Pree Calcium Silicate Products both Pipe Covering and Blocks manufactured by the Keene Corporation will continue to be branded under the name of Thermasil 2. We have manufactured nothing but Asbestos Free Thermasil since 11/13/72 3. Effective 2/1/73 all cartons of Asbestos Free material will be so marked As our present stock of cartons is exhausted we will redesign our carton but continue to use the name Thermasil * 4. The Asbestos Free Product will not be a different different color 5. Even though we have made nothing except Asbestos Pree since 11/13/72 we still have a stock of Asbestos Containing material to dispose of and I've supplied you with our plans to do this 6. Availability of Thermasil Asbestos Containing or Asbestos Pree Mixture - 3 to 4 wks Asbestos Free Only - 3 wka to 4 months We expect to be shipping only Asbestos Free Products by the 3rd or 4th quarter of 1973 7 My sizes Plant check as of 1/24/73 indicated that we are now shipping 30 of them in Asbestos Asbestos of the 73 popular Free Material with 17 more sizes having approx 1 ments stock of Asbestos Asbestos Containing The Asbestos Free sizes are 01270004 " Th C 3/4 = 1/2 = 1/2 1 3 ^ ^'@ * 1_1 Th_P C 3/4 x 1 1/2 1 x 1 1/2 1/2 1 1/2 11/2 MAN 1/2 MAN 1 1/2 7 1/2 8 1/2 $ 1/2 12 1 1/2 14 1/2 16 1 1/2 2 Th C x 3= 2 4x2 10 2 12 = 2 16 x 2 18 ^ 2 Blocka 36 ^ 12 ^ 36 1 1/2 12 ^ 36 1 1/2 Curved 2 1/2 Curved starting at 24 OD and continuing thru 60 8 For curved surfaces Asbestos Free Mineral Wool Pro- OD we offer Curved Block an has approved duct which I believe your company Thank you for your courtesies and if I can be of assistance please do not hesitate to call me Sincerely YEN ee Long B. Knudsen Frank E. Watson Manager Industrial Insulation Products . 8 01270005