Document Ne0NykeD58bmGqDbqML63eapw

r* ' K A I S J<: R G Y P S XJ M G O M PAY Y i :n g. * KAISER CENTER-.300 LAKESIDE December 27, 197' GYPSUM ta -.I-- i-ri-2 r.n OAKLAND. CALIFORNIA 8460 4 t Western Chemical Company 1500 Davidson Avenue San Francisco, California 94124 .- . 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: 1600 and 3Z ' or might be interested in purchasing: 7RF, 7TF, 7D1 Please give details of minera1ogica1 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. Dispusal of emptied bags and spills c. Recommended type respirators d. Dust monitoring techniques e. Procedures to use in case of accidental overexposure. 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. KG-0035 Western Chemical Company 2 December 27, 1971 Product types (continued) Wal1 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 cfry 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 walIboard 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,' Antioch, California 94509. Very truly yours, . Commodity Purchasing Manager cc: Ceorge Kirk"" J. $. Sheahan T" \ I S U K f.HSLC c G V P S 1.1 >. pi li-,/. o X Y, I X O :d. CA'.lrX Carey-Canod i an Miiinnees Ltd P . U . OX ] S 0 / 0 Cincinnati, Ohio ^-5215 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 ha2ard that might be experienced with the type of asbestos fiber we 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 drywall construction. Application is usually done in three coats with drying between coots. There is usually some hand sandpapering of the applied and dried compounds. . Nate 2 December 27, 1971 Product types (continued) 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. b. 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 bCO, Antioch, California 9-*509. Very truly yours, k. -#. oil yy t ( Commodity Purchasing Manager cc: George Kirk J. S. Sheahan^" KAISER GYPSUM C O M P A X Y . IX G r.A!SEr, CENTER-200 L*xcs:cE OSIVE December 27. 1971 KGAYrPsSnUrM* Ate* IS * I m Oakland. Calitcsuua 94:0--. ''alter J. Fitzpatrick, Regional Union Carbide Corporation 2770 Leon is Blvd. Los Angeles, California 9005S Sales l-.anager 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. 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 we purchase from your company: SG 210 or might be interested in purchasing: . 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 e. 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. Walter J. Fitzpatrick 2 December 27, 1S71 Product types (continued) '. Wa11 textu re: 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 sti11 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 s1urried materia 1s 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, Antioch, California 94509. Very truly yours. V>R. W. GriggCj '! Commodity Purchasing Manager cc: George Kirk J. 3. Sheehan KAISER GYPSUM G 0 N P A K Y , 1 X C. rAISCR CENTER *200 LAKESICE ORiVC December 27, 1971 Kaiser GYPSUM CAI'.LAfO. CALI?ONUIA 94GO I ' Robert Tucker, Marketing Research S Sales Pacific Asbestos Corporation P.D. 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 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 are interested in: 7RF 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 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. 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. b. 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 A60, Antioch, California 9^509. Very truly yours, (piO/h'ys R. W. Grigg A f Commodity Purchasing Manager cc: George Kirk J. S. Sheahan