Document J3r42yO85X0Z9L6XbkJGNEVy2

FILE NAME Corning OC DATE 1969 May 5 DOC OC316 DOCUMENT DESCRIPTION Letter from the Dept of the Navy to OC from The Department of the Navy RE Proposed Insulating Materials for Naval Vessels : 1969 DEPARTMENT OF THE NAVY NAVAL SHIP ENGINEERING CENTER PHILADELPHIA DIVISION PHILADELPHIA PA 19112 IN REPLY REFER TO 67M6 A 14 ai 93F9 A 20 87 Ser 752 5 MAY 1969 Corning Fiber Glass Corporation Toledo Ohio 43601 Gentlemen Re Proposed Insulating Materials for Maval Vessels The serious hasards of asbestos have recently received widespread publicity and have generated a high level of interest concerning its use by the U. S. Navy as an insulamt atierniagl There are many varied uses of asbestos in the Navy but the most disturbing from a health hazards viewpoint is that for piping and boiler insulation and legging The chief hasard exists wherever there is a possibility of dust evolution during operations such as fabrication installation and s^peciallyduring out In order to minimise the hazards associated with the use of asbestos and therefore reduce the possibility of deleterious effects to the workere a comprehensive study has been initiated by the Naval Ship Engineering Center Hyattsville Md to investigate the fossbility of substituting alternate materials for asbestos used as lagging piping and boiler insula- tion High temperature insulation as used by the Navy must be dollposed mainly of inorganic materials in order to endure temperatures above 200 F for extended periods In addition an acceptable insulation must exhibit the following characteristics 1. Low heat conductivity 2. combustibility 3. Lightweight 4. Capability of easy molding and application 5. Moisture repellency 6. corrosive insoluble and chemically inert 7. Composition structure and characteristics must remain tempebr y taemtpeu rar tue re at which it is to be used 6764 MA 93F9 A 2J 87 Ser 752 8 Must be vermin proof 9 The material and application conta should be economical 10. The ideal insulation should be nontoxic and injurious to personnel during fabrication installation use or rip 11. Once installed it should not cluster become lumpy disintegrate or build up in messes from vibration --"----"-- ------ - F Cundina tretch ispe ispe The Philadelphia Division of the Naval Ship Engineering Center has. been assigned tasks to conduct a survey of suppliers of insulation to the Navy to secure technical data literature and to investigate medical research findings safety manuals and data on research being pursued by private industry intended to develop new or improved materials which may be suitable for replacements for asbestos for piping falts and lagging The cooperation and support of industry for this study is earnestly solicited by this activity since the health of the worker is the menaog f e mem nae gen met nt labor and the government Accordinglthye Navy is desirous of obtaining information on the following a Are alternate asbestos containing materials available which may be used as thermal insulation pipe covering The insulation want offer protection up to 750 F and be manufactured in cylindrical secut p toi 3 o feetnlos ng and split in half lengthwise b Are there any single layer or combi layn erea d st abi esotons molded materials available which may be used as thermal insulation pipe covering forprofrt ome75c 0 t to i 12o 00 n FT -- ---- c What materials may be substituted for sabestos insulating felt pla ori watn er repellfeornt use irregular a from stuorfaces which are suitable for range d What asbestos containing cloth materials may be used as Cundina lagging jacket over thermal insulation or as wrapping exhaust pipes or for piping or tubing or on the immer and outer surfaces of removable covers and on flanges and valves from -5 F to 1050 FT e What subs bondt ing i matert ials u may t be sube stitutedsd ubstituted for asbestos insulation finishing cement over block insulation irregular surfaces where powdering during out has been a problem 01 117 1242