Document 50E14rryVbEkLRMnL6eL8J2aR

V 212 LR 3 3444 Quigley company, inc 233 E. 42ND ST. NEW YORK. N. Y. 10017 October 19, 1972 PLAINTIFF'S EXHIBIT Mr. Ray Kennedy Refining Department Western Hemisphere Petroleum Div. of Continental Oil Co. P.O. Box 1267 Ponca City, Oklahoma 74601 Dear Mr. Kennedy: Your letter of September 5, 1972 to Allen Edwards, Inc. has been passed to the undersigned for reply. Regarding Insulag, it contains a certain percentage of asbestos and should be considered as an asbestos-based product. I am attaching an OSHA data sheet from our supplier, Johns-Manville, which should be used for Insulag as well. We have developed a non-asbestos substitute for Insulag which is being readied for field trials at the present time. We have also de veloped, and is now in general use, a non-asbestos substitute for Insulating Castable Panelag, called "Panelex" . Panelex is available as a castable and block. A modification called Panelex TP is used as a gunning and troweling mix and is also in general use. I am enclosing for your information data sheets on Panelex and Panelex TP. If you wish to try either Panelex, Panelex Block or Panelex TP along with our Insulag non-asbestos substitute, we would be most happy to supply samples for your evaluation. Regarding Plastic Insulcrete, the draft of our data sheet is being reviewed by our Corporate Safety Department and hopefully will be released soon. A Subsidiary of PFIZER. INC. V 1 6656 Mr. Ray Kennedy October 19, 1972 Page 2 I hope the above answers your inquiry and if we can be of any service in any way, please feel free to call upon us. Very truly yours, J. J. Marino Chief Engineer Enclosures JJM/sb cc: Mr. L. D. Moore - Allan Edwards Inc Mr. R. Cotton Mr. W. Mott 1 6657 Re: Non-Asbestos Insulation Block, Castable, Trowel and Gunnning Mix You are probably aware that asbestos in insulating materials has become a controversial subject as to how it affects the health of individuals exposed to it. The OSHA requirement of 5 fibers per cubic centimeter is so restrictive that it essentially prohibits the use of asbestos in insulating materials, regard less of the amount of asbestos in the product. The dialogue about asbestos has 3 been going on for a number of years and an awareness of the possible health hazards finally resulted in the OSHA standards. In 1970 the Quigley Company, -with the aid of one of the largest public utilities, embarked on a devdoprrat program which would not only free their (calcium silicate type) insulating material of asbestos but would be tailor made for their needs to their specifications. / I Broadly speaking, the material had to possess the following characteristics: a The product must be asbestos free, and not include any other hazardous ingredients b. The product (especially in block form) should maintain its structural integrity over the life of the installation c. The product should have a 1800F service limit, to allow it to be used over a wide range of applications d. The thermal conductivity should have a range of 0. 5 to 0. 9 over a mean temperature range of 500F to 1000 1 6658 e. The chloride content should be as low as possible for stainless steel applications f. The block insulation should create a minimum of dusting during cutting and fitting. The development program resulted in Quigley's non-asbestos product called "Panelex", which is completely free of asbestos, has a total chloride content of 10 ppm. and is available as a castable, block, trowel and gunning mix. It is now being used to insulate turbines, boilers and wherever insulation of this type is required. It may be of interest to mention the sizes of block that have been agreed upon. Since many boiler walls required a 4 inch thick block, many situations would artse whereby the wall did not stay in plume and difficulty was ei.. juntered in placing a 4" block in a 3$ inch space. Furthermore, the ever present desire to cover more sq. ft. per block was throroughly investigated. The result was to standardize on a 24"x24"x3}" block, which covered 4 sq. ft. at a time. Where there existed ribs on the casing the block would be cut to whatever size the situation dictated. The Quigley Company feels "Panelex", and our reputation of manufacturing high quality specialized refractory and insulations can be of great service to the power industry, and we would like to have the opportunity of discussing with you in detail what we have to offerand how we can be of service. I am attaching for your consideration our technical data sheet on "Panelex" and our OSHA data sheet. If you feel we can be of service to you please fill out the enclosed post card and we will have a sales representative call if you so desire. Thank you for reading this far, it is certainly appreciated. Very truly yours. 1 6659