Document m3O4G1OxVyvx8m05ZOXny3nJ

K .A. I S E R Y P S U M G O M F A X Y , I X C. KAlSCIt CCNTCR-39C l*!t=S:=S OSIVC December 27, 1971 _ GYPSUtA OAHOND. CAur&Ku B4COn Walter J. Fitzpatrick, Regional Sales Manager Union Carbide Corporation 2770 Leonis Blvd. Los Angeles, California 9005S . Dear Walter: As users of asbestos we are concerned by the growing amount of data that asbestos may be a health hazard both in our manufacturing operations and in the use of some of our products. We are familiar with the "Asbestos and Health-Questions and Answers" published by the Asbestos Information Association, and request that you provide us with the following more detailed information. . 1, What is the extent of the health hazard that might be experienced with the type of asbestos fiber we purchase from your company: SG 210 or might be interested in purchasing: . 7RF, 7TF, 701 . Please give details of mineralogical or crystalline nature of the fibers as well as toxicological information. ' 2. What precautions are recommended for handling these asbestos materials in our plants where they are incorporated into dry powders and into pastes? a. Charging and blending into batches b. Disposal of emptied bags and spills c. Recommended type respirators ' d. Dust monitoring techniques e. Procedures to use in case of accidental overexposure. 3- What precautions should be recommended to the contractors and workmen who use and apply our products containing asbestos fibers (products may contain from 1 to 10% of asbestos by weight)? These products are of the following types: Joint Compounds: Dry powders for job mixing with water or premixed pastes which are applied by hand tools or mechanical spreaders to conceal joints and nail'heads in gypsum drywall construction. Application is usually done in three coats with drying between coats. There is usually some hand sandpapering of the applied and dried compounds. ' KNS10001113 Waller J. Fitzpatrick 2 December 27, 1S71 Product types (continued) Wall texture; A dry powder texture for job mixing with water and either hand or spray application. It is usually applied by con ventional compressed air paint spray guns in "fog" or "splatter" patterns. ' ' Ceiling texture: A dry powder lightweight aggregate spray texture for job mixing with water. It is usually applied by means of large orifice compressed air spray guns in a "splatter" pattern. Over spray on the walls is scraped off by means of wide blade scrapers while still wet. Laminating Compound: A dry powder product similar to the Joint Compounds used as an adhesive to bond one layer of gypsum wallboard to another. It is spread by hand or by mechanical spreader. Specifically, what precautions should be recommended for: a. Job mixing of dry powder materials . b. Spray application of slurried materials ' c. Cleanup of empty bags, spills, overspray, droppings d. Sandpapering of applied and dried joint cementing compounds containing asbestos fibers. it. a. Scope of existing legislation restricting the use of asbestos in product manufacture and in the end use of these products. b. Scope and probable timing of national or local legislation you are aware of which might be enacted restricting or prohibiting the use of asbestos In product manufacture and in the end use of these products. Please reply to me with a copy to J. S. Sheahan, Research Department, Kaiser Gypsum Company, inc., P.0. Box 460, Antioch, California 94509. Very truly yours. R. W. Grigg'j / Commodity Purchasing Manager cc: George Kirk J. 3. Sheahan KNS10001114 KAISEE GYPSUM COMP A N Y . I x c. r*IStR CINTEH-SOO LAXCSIOC OSIVC December 27, 1971 KMSSR GYPSUM *?. ** :i CA1-.IXJ3. CALirOKtJIA SlAOOI. Robert Tucker, Marketing Research & Sales Pacific Asbestos Corporation P. 0. Box 127 Coppercpolis, California 35223 Dear Bob: As users of asbestos we are concerned by the growing amount of data that asbestos may be a health hazard both in our manufacturing operations and in the use of some of our products. We are familiar with the "Asbestos and Health-Questions and Answers" published by the Asbestos Information Association, and request that you provide us v/ith the following more detailed information. 1. What is the extent of the health hazard that might be experienced with the type of asbestos fiber we are interested in: 7RF 4K Please give details of mincralogical or crystalline nature of the fibers as well as toxicological information. 2. What precautions are'recommended for handling these asbestos materials in our plants where they are incorporated into dry powders and into pastes? a. Charging and blending into batches ' b. Disposal of emptied bags and spills c. Recommended type respirators . d. Dust monitoring techniques e. Procedures to use in case of accidental overexposure. 3. What precautions should be recommended to the contractors and workmen who use and apply our products containing asbestos fibers (products may contain from 1 to 10% of asbestos by weight)? These products are of the following types: Joint Compounds: Dry powders for job mixing with water or premixed pastes which are applied by hand tools or mechanical spreaders to conceal joints and nailheads in gypsum drywall construction. Application Is usually done In three coats with drying between coats. There is usually some hand sandpapering of the applied and dried compounds. KNS10001115 Robert Tucker -2- December 27, 1971 Product types (continued) ' Wall texture: A dry powder texture for job mixing with water and either hand or spray application. It is usually applied by con ventional compressed air paint spray guns in "fog" or "splatter" patterns. Ceiling texture: A dry powder lightweight aggregate spray texture for job mixing with water. It is usually applied by means of large orifice compressed air spray guns in a "splatter" pattern. Over spray on the walls is scraped off by means of wide blade scrapers while still wet. Laminating Compound: A dry powder product similar to the Joint Compounds used as an adhesive to bond one layer of gypsum wallboard to another. It is spread by hand or by mechanical spreader. Specifically, what precautions should be recommended for: a. Job mixing of dry powder materials b. Spray application of slurried materials c. Cleanup of empty bags, spills, overspray, droppings d. Sandpapering of applied and dried joint cementing compounds containing asbestos fibers. Zf. a. Scope of existing legislation restricting the use of asbestos in product manufacture and in the end use of these products. b. Scope and probable timing of national or local legislation you are aware of which might be enacted restricting or prohibiting the use of asbestos in product manufacture * and in the end use of these products. * . Please reply to me with a copy to J. S. Sheahan, Research Department, Kaiser Gypsum Company, Inc., P.0. Box -460, Antioch, Cal ifornia 94509. Very truly yours. R. Cc . _ j Manager cc: George Kirk J. S. Sheahan KNS10001116 KAISER' GYPSUM G O M P A 3ST Y , I Tv G. KAISER CENTER-3CO LAKESIDE DRIVE December 27, 1971 KGAYJFPSSUSMFt arc* *iv. OAKLAND, CALIFORNIA 4(50* Western Chemical Company 1500 Davidson Avenue San Francisco, California 54124 \ . . ' As users of asbestos we are concerned by the growing amount of data that asbestos . may be a health hazard both in our manufacturing operations and.in the use of some of our products. We are familiar with the "Asbestos and Health-Questions and Answers" published by the Asbestos Information Association, and request that you provide us with the following more detailed information. ' I. What is the extent of the health hazard that might be-experienced with the type of asbestos fiber we purchase from your company: ' 1600 and 32 ' ' or might be interested in purchasing: r 7RF, 7TF, 701 Please give details of mineralogical or crystalline nature of the fibers as well as toxicological information, 2. What precautions are recommended for handling these asbestos materials In our plants where they are incorporated into dry powders and into pastes? a. Charging and blending into batches b. Disposal of emptied bags and spills c. Recommended type respirators d. Dust monitoring techniques e. Procedures to use in case of accidental overexposure. 3. What precautions should be recommended to the contractors and workmen who use and apply our products containing asbestos fibers (products may contain from 1 to 10% of asbestos by weight)? These products are of the following types: r Joint Compounds: Dry powders for job mixing with water or premixed pastes which are applied by hand tools or mechanical- spreaders to conceal joints and nailheads in gypsum drywall construction. . Application is usually done in three coats with drying between coats. There is usually some hand sandpapering of the applied and dried compounds. " KNS00003450 Western Chemical Company -2- December 27* 1971 'r r Product types (continued) Wall texture: A dry powder texture for job mixing with water and either hand or spray application, it is usually applied by con ventional compressed air paint spray guns in "fog" or "splatter" patterns. Ce?1ing texture: A dry powder lightweight aggregate spray texture for job mixing with water. It is usually applied by means.of large orifice compressed air spray guns in a "splatter" pattern. Over spray on the walls is scraped off by means of wide blade scrapers while still wet. *- Laminating Compound; A dry powder product similar to the Joint Compounds used as an adhesive to bond one layer of gypsum wallboard to another. It is spread by hand or by mechanical spreader. Specifically, what precautions should be recommended for: a. Job mixing of dry powder materials b. Spray application of slurried materials ' c. Cleanup of empty bags, spills, overspray, droppings d. Sandpapering of applied and dried joint cementing compounds containing asbestos fibers. 4. a. Scope of existing legislation restricting-the use of asbestos in product manufacture and in the end use of these products. * b. Scope and probable timing of national or local legislation . you are aware of which might be enacted restricting or prohibiting the use of asbestos in product manufacture and in the end use of these products. Please reply to me with a copy to J. S. Sheahan, Research Department, Kaiser Gypsum Company, Inc., P. 0. Box 460,1 Antioch, California 94509. Very truly yours, R. W. Grigc Commodity Purchasing Manager cc: George Kirk ^ J. S. Sheahan KNS00003451 Pi 4-1-0 ?ov LA'r.srt?i: r.n;vs December 27, 1971 X. Plate, Sales iiariager wsrey-^ariiitdi iaann Hines Ltd. ' P.0, box 150/0 Cincinnati, Ohio 45215 Dear Harold: * ' As users of asbestos we are concerned by the growing amount of data that asbestos may be a health hazard both in our manufacturing operations and in the use of some of our products. V/e are familiar with the "Asbestos and Health-Questions and Answers" published by the Asbestos Information Association, and request that you provide us with the following more detailed information. 1. What is the extent of the health hazard that might be experienced with the type of asbestos fiber v/e purchase from your company: 7RF 7TF 7D1 Please give details of mineralogical or crystalline nature of the fibers as well as toxicological Information. 2. What precautions are'recommended for handling these asbestos materials in our plants where they are incorporated into dry powders and into pastes? a. Charging and blending into batches . ' b. Disposal of emptied bags and spills c. Recommended type respirators d. Dust monitoring techniques . \ e. Procedures to use in case of accidental overexposure. . 3- What precautions should be recommended to the contractors and workmen who use and apply our products containing asbestos fibers (products may contain from 1 to 10% of asbestos by weight)? These products are of the following types: Joint Compounds: Dry powders for job mixing with water or premixed pastes which are applied by hand tools or mechanical spreaders to conceal joints and nailheads in gypsum dry-wall construction. Application is usually done in three coats with drying between coats. There is usually some hand sandpapering of the applied and dried - compounds. - . : 'o re' 1 cl 2 - December 27, 1971 Product types (contineed) ` V/all texture: A dry powder texture for job mixing with water and _ either hand or spray application. It is usually applied by.con ventional compressed air paint spray guns in "fog" or "splatter" patterns. . " Ceiling texture: A dry powder lightweight aggregate spray texture ' for job mixing with water. It is usually applied by means of large orifice compressed air spray guns in a "splatter" pattern. Over- . spray on the walls is scraped off by means of wide blade scrapers while still wet. Laminating Compound: A dry powder product similar to the Joint Compounds used as an adhesive to bond one layer of gypsum wallboard to another. It is spread by hand or by mechanical spreader. . Specifically, what precautions should be recommended for: ' a. Job mixing of dry powder materials . b. Spray application of slurried materials c. Cleanup of empty bags, spills, overspray, droppings d. Sandpapering of applied and dried joint cementing compounds containing asbestos fibers. k. a. Scope of existing legislation restricting the use of asbestos in product manufacture and in the end use of these products. b. Scope and probable timing of national or local legislation you are aware of which might be enacted restricting or . prohibiting the use of asbestos in product manufacture and in the end use of these products. . . . Please reply to me with a copy to J. S. Sheahan, Research Department, Kaiser Gypsum Company, Inc., P.0. Box ^60, Antioch, California 9-*509. Very truly yours, ' Commodity Purchasing Manager cc: George :-.irk J. S. Sheahan i KNS00058326