Document X7JOaMR4Oy3RLvmjMo8zZM97B

B&B RESEARCH MEMORANDUM TO: FROM: RE: DATE: CC: Kim Peters and Pat Abels Ken Leiter Amounts of Silica in Grefco's Refractories November 11, 2002 Richard Bailey QUESTION: What is the Silica content of Grefco's refractory products? ANSWER: The amount of Silica in products manufactured by General Refractories Company varies depending on the product type. The Silica-containing products manufactured by General Refractories Company can be divided into the following types; High Temperature Bonding Mortars, Silica Based Mortars, Coatings, Bulk Refractories, and Acid Resistant Tile; High alumina Brick; Basic Brick; Fire Clay Brick; Silica Brick; Castables; Gun Mixes; Mortars; Grains; Plastics and Ram Mixes; SUMMARY: History of General Refractories Company's Use of Silica. General Refractories,, Company was the product of a merger ofW. H. Wynn & Company, the Olive Hillmre v' Brick Company and the Sandy Ridge Fire Brick Company, and Consolidated Refractories Company, which included the stock of Blair Silica Brick Co"~fhe merger took place on July 15, 1911 (10, 19) . "By this time the silica brick works at Sproul [fka Sarah Furnace] had been completed and the young company offered consumers what was then a complete refractories service" (10). On July 13, 1912, it purchased Karthaus Fire Brick Co*On November 27, 1915, General refractories(cpmpany acquired the plant ofMount Union Silica Brick Works in Mount Union, Pennsylvania (19). Once acquired by General Refractories Company, the above-named companies were dissolved (19). On October 24, 1922, General Refractories Company was incorporated in Pennsylvania "as successor to a company of the same name, incorporated under the laws of Pennsylvania May 25, 1921, which was originally incorporated under the laws of West Virginia July 7, 1911, for the mining and manufacturing of refractory materials" (19, p. 890). Upon its re-incorporation in Pennsylvania, General Refractories Company surrendered its West Virginia charter of incorporation. General Refractories Company's involvement in manufacturing silica brick goes back to the very origins ofthe company in 1911. The original merged companies were all involved in the production of silica brick and General Refractories Compan^continued / to acquire companies that manufactured silica-containing products. In 1951, General v Refractories Company acquired Mount Union Silica Brick Company, which had been manufacturing silica brick since 1901, and started construction of a silica brick plant at Joliet, Illinois (10). The Joliet Works silica plant was completed in 1916, giving General Refractories Company its third silica plant (Mt Union and Sproul plants being the other two). "Joliet was a silica brick plant" (13, p. 71, Ins. 12-14). In 1922, General Refractories Company purchased the Pennsylvania Fire Brick Company and the Standard Refractories Company. These two purchases "immediately placed the General Refractories Company in the forefront of manufacturers of eastern silica brick" (10, p. 364). With the purchase of the American Refractories Company onMay 3, 1923, General Refractories Company became the world's second largest manufacturer of refractories (10, 19). In January of 1930, General Refractories Company acquired the stock and plants of Evens & Howard Fire brick Co. and Kier Fire Brick Co. During the depression, General Refractories Company acquired the Portsmouth Refractories Company in Ohio and began its expansion westward. As of 1933, General Refractories Company had plants in Danville, Rockdale and Joliet, Illinois; Stevens pottery, Georgia; Hitchins and Olive Hill, Kentucky; Baltimore, maryland; Beech Creek, Childs, Claysburg, Karthaus, Mill Hall, Mount Union, orviston, Salina, Sandy ridge, Sproul, and West Decatur, Pennsylvania and St. Louis, Missouri. (19). By 1943, General Refractories Company reached California with its acquisition of the Refractories Corporation of Los Angeles (10). B NOTE: William Cameron Sproul was an organizer, the first president and first chairman of the board of General Refractories Company. In 1925, he was elected the first president of the American Refractories Institute. He died March 21, 1928. Therefore, a review of the Refractories Institute documents is necessary. Mapleton Development Inc. Mapleton Development Inc was founded in 1972. During the 1980s most of General Refractories Company's Silica containing products were manufactured by its wholly owned subsidiary Mapleton Development, Inc. (7). Dun & Bradstreet reports that Mapleton Development, Inc's line of business is "refractory products" (8). Its headquarters was in Minerva, Ohio. At some unknown date Mapleton Development became a subsidiary of A. P. Green Industries, Inc (8). Dun & Bradstreet could not confirm whether Mapleton Development Inc was still in business "As of April 6, 1998, operations of this business sat this location [1316 Alliance Road Northwest, Minerva, Ohio] could not be confirmed" (8). On November 16, 1999, Mapleton Development, Inc.'s charter was cancelled by the Ohio Tax Department with notification (9). Service information at the time Mapleton development Inc became inactive is listed below: NAME: Mapleton Development, Inc. HQ: 1316 Alliance Road Northwest, Minerva, Ohio33068 (8) STATUS: CANCELLED REGISTERED AGENT (OHIO): C T Corporation System 815 Superior Avenue, Northeast Cleveland, Ohio 44114 (9) Dates of Products. We do not have information as to the years that all of the listed products were manufactured by General Refractories Company. General Refractories Company states the following with regard to dates of its silica products: `This defendant is unable to determine the dates of manufacture of all of the products enumerated in answer to Interrogatory 7, although there are a large number of these products which are no longer manufactured by this defendant" (18). John Hartshorn, president of General Refractories Company, testified that "in the early to mid-60s" there was a substantial reduction in the amount of silica brick or prime silicacontaining refractories (12). He further testified that by the time he retired from General Refractories Company in December 1982, there was just one plant producing silica brick for coke oven batteries (12, p. 215, Ins. 17-23). Hartshorn attributes the reduction in silica brick production to "technological evolution," without identifying the technology that caused the declining use of silica brick (12, p. 216). On November 11, 1974 NIOSH recommended an occupational health standard on exposure to crystalline silica to the Department of Labor. The standard NIOSH recommended was 50 micrograms of respirable free silica per cubic meter of air up to a 10 hour work day and 40 hour work week. (14). Silica Brick. General Refractories Company manufactured Silica Brick. Silica Brick was used in the roofs of open-hearth furnaces, certain sections of coke ovens, glasstank crowns and other refractory settings. General Refractories Company manufactured its silica brick at the following plants: Los Angeles Plant (Eagle); Lehl, Utah (Grefco-R and Grefco); Portsmouth, Ohio (Pioneer) Joliet, Illinois (Standard-J; Grefco-J and Standard-J HP); Claysburgh, Pennsylvania (Standard; and Grefco); Sproul, Pennsylvania (Standard, and Grefco); and Warren, Ohio (Standard-O, GrefcoO and Grefco) (15). SILICA PRODUCTS MANUFACTURED BY GENERAL REFRACTORIES COMPANY PRODUCT NAME HIGH ALUMINA BRICKS Altex 70 Gref-Mul Altex 90 B YRSPRODUCT MANUFACTURED SILICA CONTENT SOURCE 1950-1983 1950-1983 1950-1983 68.3% 23.5% 9% 18 18 18 Altex 70 B Kynac 60 Arco 70 NS Andal 50 Andal 60 Arco 50 Arco 60 Arco 70 Arco 80 Altex 85 Arco 90 Arco SL 1950-1983 1950-1983 1950-1983 1950-1983 1950-1983 1950-1983 1950-1983 1950-1983 1950-1983 1950-1983 1950-1983 1950-1983 BASIC BRICK Carbex Refractory Brick Carbex Cement Dibond 60R Ritex 50 Ritex 60 Simultan 60 Cemag Ritex 40 B Ritex P Ritex CK Ritex DB Ritex AK unknown unknown 1950-1983 1950-1983 1950-1983 1950-1983 1950-1983 1950-1983 1950-1983 1950-1983 1950-1983 1950-1983 21.2% 37% 22% 45% 37.7% 45.5% 32.4% 21.3% 13.5% 7.2% 8.1% 18% 18 18 18 18 18 18 18 18 18 18 18 18 7.72% 17 Silicon-carbide base 2% 4.7% 4.8% 2.9% 3.5% 5.1% 3.6% 6% 3.5% 5% 17 18 18 18 18 18 18 18 18 18 18 Genrex 60 Ritex 6-13 GR-423 GR424 GR-350 Ritex MG Grefco BZ Peratex P GR-224 GR-260 Grefcarb 10 HR Grefcarb 20 HR Ferrox F-S Ritex AB Ritex A Ritex C Grefchem 60 Grefcarb 20 MAX Grefcarb 386 Grefcarb 356 Ferrox 20 R Grefcarb 20 Grefcarb 13 Grefcarb 10 GR200 Ferrox 20 PT Ferrox 10 PT 1950-1983 1950-1983 1950-1983 1950-1983 1950-1983 1950-1983 1950-1983 1950-1983 1950-1983 1950-1983 1950-1983 1950-1983 1950-1983 1950-1983 1950-1983 1950-1983 1950-1983 1950-1983 1950-1983 1950-1983 1950-1983 1950-1983 1950-1983 1950-1983 1950-1983 1950-1983 1950-1983 0.5% 2.9% 1% 1.7% 1.7% 3.1% 2% 2.9% 1.1% 1% 0.9% 1.3% 1.2% 4.1% 4.8% 4.8% 1% 0.8% 0.8% 0.8% 1.4% 2% 1.2% 1.2% 1.65 2% 1.25 18 18 18 18 18 18 18 18 18 18 18 18 18 18 18 18 18 18 18 18 18 18 18 18 18 18 18 Ferrox X Ferrox VII-MAX Ferrox VII-S Ferrox YII-R Ferrox VI-S Ferrox VI-R Ferrox V-S Ferrox V-R Ferrox IV-S Dibond 60 S Dibond 60 Dibond 50 Ritex-KB Ferrox 95-EE GR Bung Ritex AA Peratex brant Ritex 60 Ritex 40 Ritex B Ritex CB Genrex 60 Ritex 6-13 1950-1983 1950-1983 1950-1983 1950-1983 1950-1983 1950-1983 1950-1983 1950-1983 1950-1983 1950-1983 1967-1978; 19501983 1950-1983 1950-1983 1950-1983 1950-1983 1950-1983 1950-1983 1950-1983 1950-1983 1950-1983 1950-1983 1950-1983 1950-1983 1.4% 0.7% 0.7% 0.7% 0.2% 1.2% 0.7% 1.2% 1.2% 2.75 2.1% 2.2% 1.5% 0.8% 55.2% 4.4% 2.9% 4.5% 4.5% 6% 4% 0.5% 2.9% FIRE CLAY BRICK Ute brand 1950-1983 59.5% 18 18 18 18 18 18 18 18 18 18 6, 7; 18 18 18 18 18 18 18 18 18 18 18 18 18 18 UteC 1950-1983 UteL 1950-1983 Ranger Brand 1950-1983 Ranger Cast Ranger Ram RC-3 RC-3-G RC-3-G Special GR-W 1950-1983 IDS Brand 1950-1983 HIAC-S 1950-1983 HIAC KCB 1950-1983 fflACU 1950-1983 HACK 1950-1983 Diamond 8 1950-1983 Superac Multi-Whole 1950-1983 Checker Superac K Blast Furnace Stove Checkers 1950-1983 Superac K 1950-1983 Superac K BF 1950-1983 Superac K BF SR 1950-1983 Superac KBF-SR Bottom Blocks 1950-1983 Olive Hill CO SM 1950-1983 Olive Hill NS 1950-1983 Salina 1950-1983 58.9% 58% 59% 56% 61% 56% 54% 55% 54% 52% 53% 53% 52% 52% 52% 53% 55% 55% 56% 18 18 18 7 7 7 7 7 18 18 18 18 18 18 18 18 18 18 18 18 18 18 18 18 Salina DOT 1950-1983 Salina 40 Fire Clay Brick 1950-1983 Olive Hill BF 1950-1983 Olive Hill CO DP 1950-1983 Olive hill CO HM 1950-1983 Olive Hill IDS 1950-1983 Olive Hill Multi-Whole 1950-1983 Checkers Acido Drip Point Grid 1950-1983 Tile Acido Acid Resistant Tile Acido 1950-1983 Troup L 1950-1983 HIACS CB High Duty Olive Hill Stove Olive Hill SM SILICA BRICK Grefco CO HD Grefcp CO HM Grefco STS Grefco CO Grefco-J Grefco-0 Grefco R 1950-1983 1950-1983 1950-1983 1950-1983 1950-1983 61% 39% 52% 51% 55% 60% 55% 60% 58.4% 56% 59% 18 18 18 18 18 18 18 18 5 18 18 7 7 7 7 95% 95% 95% 95% 95.3% 95.3% 96%; 95.3% 18 18 18 18 1, 16, 17 1, 16, 17 18; 1, 16, 17 Yough Dash Silica Brick 1950-1983 Yough DP 1950-1983 Yough Standard Silica Brick 1950-1983 Standard-J Standard J HP Standard-0 Eagle Eagle Super-Duty 1950-1983 Pioneer CASTABLES High Strength BrikCast Grefmag 80 R High Strength Basicrete Brik-Cast MPH-14 High Strength UTE Cast XCM HAC-95 Ute Cast-C--47 Alstop Light-Weight Castable Brik-Cast 3000 Brik-Cast 3100-23 Brik-Cast AL 1950-1983 1950-1983 1950-1983 1950-1983 1950-1983 1950-1983 1950-1983 1950-1983 1950-1983 1950-1983 1950-1983 95% 94% 95.3% 96%; 95.3% 95.3% 95.3% 95.3% 95.3% 96% 95.3% 18 18 1, 16, 17 18; 1, 16, 17 1, 16, 17 1, 16, 17 1, 16, 17 1, 16, 17 18 1, 16, 17 40% 5%; 7% 6% 14% 44% 0.3% 47% 34% 33% 23% 87% 18 4; 18 18 18 18 18 18 18 18 18 18 Brik-Cast Brand 1950-1983 Ferro-Cast Brand 1950-1983 Ferro-Cast S 1950-1983 Fusecrete Brand 1950-1983 Fusecrete G Ute Cast 1950-1983 High Strength Ute Cast 1950-1983 HL-41 1950-1983 HL-41 A HL-41 FP Ladlecast 65 LC-181 High Strength Ute Cast HL-984 High Strength Ute Cast Lehi Ganister Litecast 50 1950-1983 Litecast 45 1950-1983 Litecast 30 1950-1983 Litecast 75 1950-1983 Super Ute Cast A 1950-1983 Litecast 80 1950-1983 Litecast 2200 1950-1983 RC-3 1950-1983 Litecast 60 1950-1983 High Strength Basicrete Brand 1950-1983 trace of silica 40% 50% 0.24% 50% 44% 48% 34% 46% 43% 36% 53% 35% 37% 34% 40% 6% 18 18 18 18 7 18 18 18 7 7 7 7 7 7 18 18 18 18 18 18 18 18 18 18 High Strength BrikCast Brand 1950-1983 Grefcon 95 High Tech 1950-1983 Castable Grefcon 60 High tech 1950-1983 Castable Grefcon 50 Grefcon 60 Grefcon 60 AL Grefcon80 AL Grefcon 85 Grefcon 85-3C Grefcon 90 Grefcon 95 Grefco Fireplace Castable 1950-1983 Grefcast Brand 1950-1983 Gengun 2800 1950-1983 Ferro Cast A 1950-1983 Brik-Cast XCM 1950-1983 Brik-Cast 3200 A 1950-1983 Brik-Cast 2000 1950-1983 Super Ferro-Cast Brand 1950-1983 Brik-cast Special 1950-1983 HL-41-FP 1950-1983 Super Brik-Cast A 1950-1983 Garfmag-Ten-OThree 35% 4% 37% 57% 38% 40% 38% 40% 30% 50% 36% 14% 50% 39% 3% 18 18 18 7 7 7 7 7 7 7 7 18 18 18 18 18 18 18 18 18 18 18 4 Alstop Light Weight Castable -G Alstop Light Weight Castable Brikcast Brikcast 2000 Brikcast 3000 Brikcast3000AL Brikcast3100-G Brikcast 3200-A Brikcast AL Brikcast Special AL Brikcast XCM Brikcast XCM-L1 High Strength Brikcast High Strength Brikcast BF High Strength Brikcast-G Ferro cast Ferro cast-5 Ferrocast-598 Ferrocast- 598 XCM Ferrocast A Ferrocast-SD Grefsil (Castable) Grefsil AL Grefsil-G 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 GRX 524A (Dry Castable) CRX-541 Low Cement Castable GRX-564 Castable GRX-581 Coarse Castable CRX-584 High Alumina Castable CRX-590 FC Castable CRX 625 Chrome Containing Castable CRX631 Low Cement Castable CRX 641 High Alumina Castable CRX-648 Basic Castable Low Cement CRX-649 High A1203 Castable CRX-651 Castable High A1203 SiC CRX Chrome Containing Castable CRX 665 Castable withBS04 CRX 666 Castable CRX 668 Basic Castable No Cement CRX-635 High Alumina Castable 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 Unacast 55 Unacast 55 Cast & Dried Unacast 55 LC Cast & Dried Summer Unacast 55 LC Summer Unacast 55 LC Winter Unacast 55 LCC C&D Summer Unacast 55 LCCC C&D Winter Unacast 65 Unacast 65 Last & Dried Unacast 65 LC Cast & Dried Summer Unacast 65 LC Cast & Dried Winter Unacast 65 LC Summer Unacast 65 LC Winter Unacast 65 LCAL C&D Summer Unacast 65 LCC Winter Unacast 75 Unacast 75 C Unacast 75 C Cast & Dried 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 Unacast 75 Cast & Dried Summer Unacast 75 Cast & Dried Winter Unacast 75 LC Summer Unacast 75 LC Winter Unacast 75 LCC Unacast 75 LCC Cast & Dried Unacast 85 Unacast 85 C Unacast 85 C Cast & Dried Unacast 85 LC Unacast 85 LCAL Unacast 85 LC Cast & Dried Unacast 85 LC Coarse Yerilite Yough Block GUN MIXES Ute Cast C Ute Cast G Super Ferro Cast G Litecast 50-25 G Litecast 45 1950-1983 1950-1983 1950-1983 1950-1983 1950-1983 47% 50% 36% 34% 46% 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 18 18 18 18 18 Litecast 50-LI Litecast 50-LI-G Litecast 60-25 High Strength Ute Cast 1950-1983 High Strength Brick Cast G 1950-1983 High Strength Basicrete G 1950-1983 Grefmag 80 G 1950-1983 Grefcote 50 1950-1983 Ferro-Cast S 1950-1983 Brik-Crete G 1950-1983 Brik-Cast 3100 G 1950-1983 Blast Furnace Castable 122R Blast Furnace Castable 122N 1950-1983 Special High Alumina Castable Special High Alumina 1950-1983 Castable G Ferro-Cast G 1950-1983 Grefcote 463 Grefcote 463-M Grefcote 50-C Grefcote 60 1950-1983 Grefcote 60 AL Grefcote 60-C 44% 35% 35% 7% 35% 38% 47% 25% 43% 95% 40% 29% 7 7 7 18 18 18 4, 18 18 18 18 18 7 18 7 18 18 7 7 7 18 7 7 Grefcote 60-CC Grefcote 60-D Grefcote 70 1950-1983 Grefcote 70 AL HL-41 G 1950-1983 High Strength BrikCastBF 1950-1983 Kromespray A Kromespray B 1950-1983 Litecast 30 G 1950-1983 Litecast 50 1950-1983 Litecast 60-25 G 1950-1983 Litecast 60-25 G HS 1950-1983 Litecast 75-28 Litecast 75-28-G Litecast 75-G 1950-1983 Litecast 80 G 1950-1983 Litecast 90-28-G RC-3 G 1950-1983 Super Brikcast BPA- 1950-1983 G Gunning Castable Superbrikcast A Superbrikcast A Coarse Superbrikcast A-CO Superbrikcast TG Grefcote 40 Gunning 1950-1983 Mix 22% 47% 38% 6.7% 9% 43% 34% 46% 42% 39% 35% 34% 39% 41% 7 18 7 18 18 4 4, 18 18 18 18 18 7 7 18 18 7 18 18 7 7 7 7 18 Grefmag 80 S Grefmag 90 G Grefco 80 F GRX-543 3000 Gun Mix GRX 522 2800 Gun Mix 1950-1983 1950-1983 1950-1983 MORTARS Sillimanite 343 Mastic 1950-1983 M Sillimanite 341 1950-1983 Silbrik Bond 1950-1983 Everhard Mortar 1950-1983 Number 3 Chrome Mortar 1950-1983 Number 4 Chrome Mortar 1950-1983 Number 7 Basic Mortar 1950-1983 Grefphos 85 Mortar 1950-1983 Briklok B 1950-1983 Briklok D 1950-1983 Briklok A 1950-1983 Altex Mortar A 1950-1983 Sillimanite 340 1950-1983 Sillimanite 343 1950-1983 Arco Bond 1950-1983 Arcolok A 1950-1983 4% 9% 5% 48% 44% 96% 56% 5% 10% 11% 10% 41% 46 42% 9% 39% 48% 30% 26% 18 18 18 7 7 18 18 18 18 18 18 18 18 18 18 18 18 18 18 18 18 Arcolok 90 1950-1983 Arcolok DC Arcolok D Arcolor A Kromeset Brand 1950-1983 Brikbond A 1950-1983 Brikbond B Chrome Mortar 1950-1983 Grefite Ladle Wash 1950-1983 Greflok 400 A 1950-1983 Greflok 400 B 1950-1983 Greflok 400 D 1950-1983 Greflok 400 Special Greflok 410 Special 1950-1983 Greflok 410 A 1950-1983 Greflok 420 A 1950-1983 Greflock 420 D 1950-1983 Greflok 400-DS Greflok 410 Dripping Greflok 410-B Greflok 410-D Greflok 420-A Greflok 420-B Greflok 3 000-A Greflok 3 000-A Special Greflok 3000-B 7% 17% 58% 6% 41% 62% 62% 62% 53% 53% 45% 45% 18 7 7 7 18 18 7 18 18 18 18 18 7 18 18 18 18 7 7 7 7 7 7 7 7 8 38 Fireclay Mortar Kromebond Brand Mortar Special Silica C. 0. Cement Special Silica C. 0. Cement Air Set Silica Brick Grog Hitchins Grog C.O. Silica Fireclay Silica Fireclay Alstop Mortar Arco 70 Grog Chrome Alumina Patching Material Gensil Mortar CRX-624 Graphitic Mortar GRX-63 0-Low Cost FC Wet Mortar 1950-1983 1950-1983 1950-1983 1950-1983 1950-1983 GRAINS Grefmag Grains 229 1950-1983 Grefmag Grains 534 1950-1983 Grefmag Grains 526 1950-1983 Grefmag Grains CM 1950-1983 Grefmag Grains 535 1950-1983 Grefmag Grains 524 1950-1983 Grefco Ladle Topping 1950-1983 62% 7% 97% 95% 97% 62% 0.7% 0.5% 0.7% 1.5% 0.7% 5% 61% 18 18 18 7 18 7 18 2, 3, 7 7 7 7 7 7 18 18 18 18 18 18 18 Grefcote 464 1950-1983 Bethmag Grains 526 1950-1983 Bethmag CM 1950-1983 Plastic Chrome Ore 1950-1983 Dry Plastic Chrome Ore 1950-1983 Pennsylvania Ground 1950-1983 Fire Clay Grefmag 80 S 1950-1983 Grefmag 80 F 1950-1983 Texas Ground Fire Clay 1950-1983 Ground Chrome Ore 1950-1983 Kentucky Ground Fire 1950-1983 Clay Arco Perm 90 1950-1983 Arco Perm 90 B 1950-1983 Altop Ladle Wash PLASTICS AND RAM MIXES Grefmag 95 R 1950-1983 Ferrox SRM 1950-1983 Brikram 85 Brikram 85 F 1950-1983 Grefite SPM 1950-1983 Grefvibe 600 (formerly GRX-366) 88% 0.7% 1.5% 7% 10% 52% 4% 5% 53% 5% 57% 8% 8% 3% 1.4%; 1% 7% 62% 18 18 18 18 18 18 18 18 18 18 18 18 18 7 18 4; 18 7 18 18 7 Grefvibe 600 Phos Free (formerly GRX476) Grefvibe-850 (formerly GRX-341) Grefvibe-850 Granular (formerly GRX-419) GRX-363 Phos Bonded Gunning Mix GRX-522 2800 Gun Mix CRX-524 (Dry Vibratable) CRX-563 High Alumina SiC Resin Bonded CRX566 CRX 567 R High Alumic Sic Ram CRX-568 CRX-581 CRX-591 NW CRX-591-SP CRX592 CRX-600 CRX-631 H CRX-637 Shovel Patch CRX-642A Coke Oven Spray CRX-642-C 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 CRX-643 Graphitic T Well 40 GRX-644 Graphitic Ranger Ram GRX-649 C CRX-649 C Cast & Dried S-Well Mix S-Well-C Mix Silica CO Cement JCC Silica Coke Oven Cement GRX-364 1950-1983 Grefite 80 1950-1983 Grefite 6-TG 1950-1983 Grefite 85 and Grefite 1950-1983 85 R Grefite 384 Grefite 405 Plastic Grefite 405 R Grefite 467 Plastic Grefite 520 R Grefite 534 Ram Grefite 60 R Grefite C384 Grefite Dry Ferrox SRM 1950-1983 Ferrox Ramming Mix 1950-1983 11% 16% 33% 11% 1% 0.9% 7 7 7 7 7 7 7 7 18 18 18 18 7 7 7 7 7 7 7 7 7 18 18 Super Grefite 900 Plastic 1950-1983 Grefite 384 Plastic 1950-1983 Alstop 80 P 1950-1983 Alstop 80 R 1950-1983 Brikram 57 1950-1983 Brikram 57 Dry Brikram 57 R Brikram 57 Fine 1950-1983 Brikram 60 Brikram 60 A1 Block Brikram 60 AL Brikram 60 Block Brikram 70 1950-1983 Brikram 70 PV Brikram 70R Brikram 70 R Dry Brikram 80 Brikram 80 Block Brikram 80 CR Brikram 80 P-412 Block Brikram 80 412 Brikram 85 1950-1983 Brikram 85 CF MW Brikram 85 FMW Brikram 85 RW MW 6% 31% 8% 8% 33% 32% 23% 7% 18 18 18 18 18 7 7 18 7 7 7 7 18 7 7 7 7 7 7 7 7 18 7 7 7 Brikram 85 F Brikram 90 1950-1983 Brikram 90 FA 1950-1983 Brikram 90 VS 1950-1983 Brikram 90 XFM 1950-1983 Brikram 90R FA Brikram 90RY Brikram CR Plastic Brikram CR Ram Brikram CR-10 Plastic Brikram CR-10 Ram Brikram Lite PR Grefite Brand 1950-1983 Grefite 60 1950-1983 Super Brikram Plastic 1950-1983 Block Super Brikram G 1950-1983 Superbrikram Super Brikram Patch Mix Super Brikram VS Super Ferrocast Super Gen Ram Grevibe 850 1950-1983 Grevibe 600 1950-1983 Grefite Dry 1950-1983 Gen-Block 1950-1983 90% 4% 4% 6% 59% 36% 48% 48% 9% 34% 59% 65% 7 18 18 18 18 7 7 7 7 7 7 7 18 18 18 18 7 7 7 7 7 18 18 18 18 Brikram 3200 Phos 1950-1983 Brikram 90 R 1950-1983 Brikram 85 R 1950-1983 Brikram 80 461 R 1950-1983 Brikram 80 461 R Fine Brikram 80 P 461 FMW Brikram 80 P 461 Fine Brikram 80 408 Brikram 80 P-461 1950-1983 Brikram 80 405 Brikram 80 406 1950-1983 Brikram 70 R 1950-1983 Brikram 55 1950-1983 Brikram Lite 1950-1983 Greftap 289 1950-1983 Greftap 333 1950-1983 Greftap 430 1950-1983 Super Brikram 1950-1983 Super Grefite 85 Ram 1950-1983 Super Grefite 85 Plastic 1950-1983 Super Grefite 90 Super Grefite 90 Ram S.P. Super Grefite C85 29% 6% 7% 13% 13% 13% 23% 35% 41% 47% . 57% 57% 48% 12% 12% 18 18 18 18 7 7 7 7 18 7 18 18 18 18 18 18 18 18 18 18 7 7 7 Brikram 3200 Phos 1950-1983 Brikram 90 R 1950-1983 Brikram 85 R 1950-1983 Brikram 80 461 R 1950-1983 Brikram 80 461 R Fine Brikram 80 P 461 FMW Brikram 80 P 461 Fine Brikram 80 408 Brikram 80 P-461 1950-1983 Brikram 80 405 Brikram 80 406 1950-1983 Brikram 70 R 1950-1983 Brikram 55 1950-1983 Brikram Lite 1950-1983 Greftap 289 1950-1983 Greftap 333 1950-1983 Greftap 430 1950-1983 Super Brikram 1950-1983 Super Grefite 85 Ram 1950-1983 Super Grefite 85 Plastic 1950-1983 Super Grefite 90 Super Grefite 90 Ram S.P. Super Grefite C85 29% 6% 7% 13% 13% 13% 23% 35% 41% 47% . 57% 57% 48% 12% 12% 18 18 18 18 7 7 7 7 18 7 18 18 18 18 18 18 18 18 18 18 7 7 7 ADHESIVES Fibrous Adhesive OTHERS Calcined Diatomaceous Earth Dicalite filters and Filter Aids Perlite Perlite Insulating Boards 1955-1972 (Grefco) 1973-1996 (J-M) 86% Sodium Silicate 6; 11 7 7 7 7 7 SOURCES: 1. "Product Data," General Refractories Company, May 4, 1971, GR-159. 2. "High Temperature Bonding Mortars," Grefco Super Brikram, General Refractories Company, GR-239. 3. "Grefco Mortars and Coatings," General Refractories Company Brochure, Q-562, GR- 191. 4. "Bulk Refractories-Grefco," General Refractories Company Brochure, Q-564. 5. "Acido: Acid Resistant Tile," General Refractories Company, Q-1753. 6. Defendant General Refractories Company's Answers to Plaintiffs' Standard Interrogatories, In RE: All Asbestos Cases Presently Pending Before and All Future Cases Assigned to the Honorable James E. Mies, Circuit Court Judge, In the Circuit Court ofWayne County, Michigan, June 30, 1986, GR-10. 7. Plaintiffs' Response to Defendant Travelers Insurance Company's Interrogatories, General Refractories Company, Grefco, Inc. andAmerican Refractories Company vs. Travelers Insurance Company, et al, In the United States District Court for the Eastern District of Pennsylvania, September 9, 1988, GR-21. 8. Dun & Bradstreet Business Information Report: Mapleton Development, Inc. 9. Ohio Secretary of State via Westlaw. 10. "William Cameron Sproul: First President ofthe American Refractories Institute, One of the Organizers of the General Refractories Company," Bulletin of the American Ceramic Super Grefite C85R T-Well 50 T-well 70 T-well 80 Tatetap BF Greftap 430 Yough Plastic Block Ute Well Mix Brikram 80 461 R Grefite 85 R Grefite 384 Plastic Grefite 459 Ram Grefite 467 Ram Grefpatch 57 Grefpatch 85 Grefpatch 90 Grefpatch 90 Greftap 275 Greftap 274 Drop 3-1-84 Coke Over Dusting Mix Genram 85 Plastic Genram 85 T Grefplas 85 Grefplas 85 Fine Grefplas 85 Ram 1950-1983 1950-1983 1950-1983 1950-1983 1950-1983 1950-1983 1950-1983 1950-1983 1950-1983 1950-1983 1950-1983 1950-1983 57% 61% 63% 13% 11% 32% 33% 5% 39% 10% 43% 36% 7 7 7 7 7 18 18 18 18 18 18 18 18 18 18 7 7 18 18 7 7 7 7 7 7 7 ADHESIVES Fibrous Adhesive OTHERS Calcined Diatomaceous Earth Dicalite filters and Filter Aids Perlite Perlite Insulating Boards 1955-1972 (Grefco) 1973-1996 (J-M) 86% Sodium Silicate 6; 11 7 7 7 7 7 SOURCES: 1. "Product Data/' General Refractories Company, May 4, 1971, GR-159. 2. "High Temperature Bonding Mortars," Grefco Super Brikram, General Refractories Company, GR-239. 3. "Grefco Mortars and Coatings," General Refractories Company Brochure, Q-562, GR- 191. 4. "Bulk Refractories-Grefco," General Refractories Company Brochure, Q-564. 5. "Acido: Acid Resistant Tile," General Refractories Company, Q-1753. 6. Defendant General Refractories Company's Answers to Plaintiffs' Standard Interrogatories, In RE: All Asbestos Cases Presently Pending Before and All Future Cases Assigned to the Honorable James E. Mies, Circuit Court Judge, In the Circuit Court ofWayne County, Michigan, June 30, 1986, GR-10. 7. Plaintiffs' Response to Defendant Travelers Insurance Company's Interrogatories, General Refractories Company, Grefco, Inc. andAmerican Refractories Company vs. Travelers Insurance Company, et al., In the United States District Court for the Eastern District of Pennsylvania, September 9, 1988, GR-21. 8. Dun & Bradstreet Business Information Report: Mapleton Development, Inc. 9. Ohio Secretary of State via Westlaw. 10. "William Cameron Sproul: First President ofthe American Refractories Institute, One of the Organizers of the General Refractories Company," Bulletin ofthe American Ceramic Society-Ceramic History, vol. 22, No. 1, November 15, 1943, pp. 362-366. 11. Defendant General Refractories company's Third Amended Answers and Objections to Plaintiffs' Master Set of Interrogatories, In Re: Asbestos Litigation, In the District Courts of Dallas County, Texas, Master Asbestos File, April 23, 1999. 12. Deposition of John Hartshorn, Dorothy Gandzyk, et al v. General Refractories Company, et al, Court of Common Pleas Luzern County, Pennsylvania, July17, 1990. 13. Deposition of Bob Mattox, Edith Parker, et al., vs. Anchor Packing Company, et al, In the Circuit Court Third Judicial Circuit of Illinois, Madison County, August 28, 1989. 14. Refractories Institute Silica Intelligence Plan, Charles G. Marvin, The Refractories Institute, April 19, 1983, RI-100. 15. "Castables," General Refractories Company, no date 16. "General Refractories Sales Catalog," General Refractories Company, 1959. 17. "A Complete Refractories Service," General Refractories Company Catalog, no date. 18. General Refractories Company's Second Supplemental Answers to Plaintiffs' Interrogatories Directed to Defendants in John J. Marlin andAnastazia Martin v. General Refractories Company, et. al. In the Court of Common Pleas ofAllegheny County, Pennsylvania, September 13, 1984. 19. "General Refractories Company," Moody's Manual of Investments American and Foreign, 1933, p. 890 (partial copy from PALS conference seminar on General Refractories by Aaron Simon, 1999. INVESTIGATIVE SOURCES: 1. Summation Tech Files Data Base for Brochures and Interrogatories 2. OCF Product Book. 3. "General Refractories Company," Trial Department Company File 4. General Refractories Company In Re File 5. "The Refractories Institute" Exhibit File SILICA BRICK BRAND: MANUFACTURING POINT: MANUFACTURING METHOD: CHEMICAL ANALYSIS: bjn. Loss P^Si02 F ai203 Ti02 CaO MgO Alkalies (ASTM C-l8) 0.0 95.3 0.8 0.9 0.1 2.8 T race 0.1 PORE SPACE: (ASTM C-20) % Apparent SPECIFIC GRAVITY: (ASTM C-20) Apparent BULK DENSITY: (ASTM C-20) gm/cc 3 02/in3 Ib/ft3 STRENGTH: (ASTM C-133) Modulus of Rupture p.s.i. Cold Crushing p.s.i. .J j4 LOAD TEST 25 p.s.i.: (ASTM C-16) F to Failure ,J GREFCO CO REG Claysburg, Pa. Dry Press 23 - 27 2.31 - 2.34 1.67 - 1.76 .96 - 1.02 104 - 110 3.000 - 5,000 3,000 II Where a single value is shown it is a typical value and not to be considered as either a maximum or a minimum. Where two values are shown, ? t 7 this represents the range of the averages of groups of five brick randomly selected. RSG 5/4/71 GENERAL REFRACTORIES COMPANY. U. S. REFRACTORIES OIVISION COO Grant Straat. Roam 3000 Pittsburgh, Pa. 16219 Below: SREFCO PCO (Plastic Chroma Ore) is rammed into bottom of basic open-hearth furnace _ PLASTIC FIREBRICK-'SSSSs^jl EEHfflySB An important quantity of refractory materials is used in tiie form of high temperature bonding mortars, plas tics. ramming mixes, castables and miscellaneous bulk products. Mortars arc used for laying and coating brick work. and increase the life of brick by eliminating open joints and by protecting surfaces. Plastics, ramming mixes and castables provide a convenient method of forming refractory shapes or furnace linings on the job, and making patches to existing structures. Grefco provides a complete line of these products to meet every need. They are worthy companion materials to the wide range of Grefco firebrick, and are noted for their distinctive properties and uniform high quality. Stocks of the following products are maintained at Grefco plants, warehouses and dealer outlets throughout the United States. maintenance costs. When used for minor patching 'X~ in brickwork of super duty or lower quality, BRIKUv^ makes a dense, tight patch that restores the wall to original efficiency. BRIKLOK is available in two forms, having identical properties. BRIKLOK A is a wet mixture furnished in 25. 100, and 250 lb. drums. It is of plastic consistency ready for use without further preparation, is exception ally stable, and won't settle or deteriorate in the drum. BRIKLOK B is furnished as a dry powder in 100 lb. bags; 125 and 250 lb. drums. It requires only thorough mixture with water to obtain the desired consistency. Both forms of BRIKLOK may be used for spray, brush or trowel coatings, or for troweled or dipped joints. G-32 Grefco C-32 is a fireclay base, heat setting mortar recom BRIKIOK mended for laying and coating refractory brickwork. It contains a high percentage of selected calcined flint fire HIGH BRIKLOK is a super clay, making shrinkage negligible at high temperatures. TEMPERATURE duty, air setting, fireclay C-32 maintains brickwork in a tight, well-bonded condi BONDING MORTARS base mortar which sets tion after being heated at 2000 F. hard ?nd develops high Grefco C-32 is furnished in dry powder form, in 100 strength merely upon dry lb. bags. It is ready for use merely upon mixing with ing. It is a widely used general utility mortar for laying, water. It possesses excellent troweling and working char G coating and patching fireclay and silica brickwork. acteristics, remains in suspension after mixing, and does BRIKLOK possesses a good resistance to slag and abra not deteriorate in storage. If the entire mortar batch is sion and withstands temperatures up to 3056s F. not used at once, the remainder may be used at any later As a wall bond it provides a crack-free, air-tight and time by remixing with water. gas-tight surface, from hot to cold face. BRIKLOK thus increases furnace efficiency by preventing the infiltration SILBRIK BOND of cold air and the escape of furnace gaseS. As a coating for walls, BRIKLOK won't crack, peel or separate from the firebrick--prolonging refractory life and reducing SILBRIK BOND is a smooth working, high silica, low alumina mortar, which gives the thinnest, the tightest, the most refractory and the most slag-resistant joints obtain able in silica and super duty silica brickwork. Such joints are made possible by the excellent dipping and troweling properties, and exceptionally good water retention of SILBRIK BOND--qualities which insure plenty of time for laying and fitting silica brick. The base of this superior silica mortar is an exception ally pure silica sand, ground to extreme fineness. SILBRIK BOND contains no clay and no sodium silicate. It is lower in alumina than the best super duty silica brick, and is almost as refractory as brick of that quality. SILBRIK BOND has ample dried strength, but does not take a strong air set. Its ceramic bond does not begin to form below 1800 F., leaving silica brick free to expand until all volume chances have been completed, SILBRIK BOND gives top performance and eliminates joint erosion wherever silica brick are used. It is especially recommended for bonding silica brick of all types in Open Hearths, Electric Arc Melting Furnaces. Glass Tanks, and Non-Ferrous Furnaces. 11 Vbb ' / X GREFCO lit. I.i. Ht. IFF. * . a..:\ *#* -,j ." * ' *" r: <vt GREFCO SILLIMANITE GREFCO SILLIMANITE mortar is a highly refractory mortar furnished with either heat setting or air setting properties. It is irore refractory and more resistant to slag, than clay base mortars. This high quality mortar is recommended for laying up and coating fireclay, high alumina or SILLIMANITE brick, and should always he used wherever a mortar is required for the latter. The base material for GREFCO SILLIMANITE mor tar is calcined kyanite. consisting mainly of large crys tals of mullite. The crystalline mullite insures very high refractoriness and freedom from shrinkage, or overburn ing at high temperatures. Several varieties are available, each identified by number for convenience. No. 340--Heat setting type, which develops a strong bond when heated to 2000 F. It is shipped dry in 100 lb. bags and requires only mixing with water for use. No. 341--Heat setting type, is also furnished in dry form in 100 lb. bags, but contains organic binders which pro vide extra hardness upon drying. No. 343--Air setting type, is shipped in wet or plastic form ready for use. Furnished in 100 or 250 lb. metal drums. No. 344-. Air setting type, is shipped in wet or plastic form ready for use. Furnished in 100 or 250 lb. metal drums. Specially suited for patching saggers. SREFCO* GREFCO is a patented, high temperature, air setting mortar with chrome ore base. It is recommended for laying or coating all types of basic, brick. It also per forms well when used with clay and high alumina brick where these are in contact with highly basic slags or oxides. GREFCO mortar does not contain sodium sili cate, but has a chemical bond which develops great strength up to the highest working temperatures. Its chemical characteristics assure effective resistance to cor rosive slags and oxides. GREFCO mortar is furnished in dry' powder form, in 125 lb. bags and 200 lb. drums. The only preparation required is mixture with water. It can be troweled, dipped and used as easily as ordinary fireclay mortar, and can be applied with a refractory gun. GREFCO stays in suspension and does not require frequent stirring in the mortar box. * Application hns been made to ehaagt the name of thi product from "GREFCO** to KnOMEDO.ND". j NO. 7 CHROME BONDING MORTAR No. 7 CHROME BONDING MORTAR is a heat setting, chrome ore base mortar. It is made from finely ground chrome ore and contains additional agents which provide high water retention and moderately air setting properties. Having strong adhesive characteristics, this mortar is very suitable for bonding and spray coating all kinds of refractories. No. 7 CHROME BONDING MOR TAR is furnished in dry powder form, in 100 lb. bags ami only requires the addition of water before use. V GREFCO PCO GREFCO PCO is chronic PLASTICS ore in plastic form with air setting properties. It is used with outstanding success in sub-hearths of basic open-hearth furnaces. providing a perfect mono lithic surface between brick and magnesite grain that gives maximum protection against slag and metal break outs. GREFCO PCO is also widely used for forming bot toms in steel plant reheating furnaces and soaking pits, bottoms of beat treating and forging furnaces, walls and bottoms of some boilers firing pulverized coal, walls and bottoms of paper plant recovery furnaces, and as a lin ing for open-hearth steel furnace doors. , GKEFCO PCO is furnished in 200 lb. drums ready for use as received. Its consistency is always uniform for proper workability--never too wet or too dry. After ap plication by ramming it develops high strength and hard ness merely upon drying, and when fired becomes a dense, hard surface that is unusually resistant to severe me chanical abrasion. Low porosity makes it highly resistant to penetration by molten metals or slags. The, chemical composition of GREFCO PCO provides excellent resist0.7. ance to attack by liuxes and slags such as roll scale, BRIKRAM ` open-hearth slag, coal ash, and paper plant smelts. BRIKRAM is a fireclay base, heat setting, high duty plastic refractory. It is suitable for use in making patches SUPER BRIKRAM SUPER BRIKRAM is a fireclay base, heat setting, super duty plastic refractory. It compares in quality with super duty fireclay brick and can be used as a substitute under certain conditions. SUPER BRIKRAM is ideai for making repairs and patches in walls, arches, and other parts of boiler settings, and for molding intricate shapes and forms. Complete walls or monolithic sections can he built of SUPER BRIKRAM, using special Grefco anchors which tie the plastic lining to the outside wall and per mit necessary movement without bulging. and repairs to high duty fireclay refractory linings. It is similar to SUPER BRIKRAM in workability and applica tion, but is intended for use under less severe service con ditions. BRIKRAM quality is comparable with high duty fireclay brick, and it is suitable for operating temperature of 2900 F. Refractory anchors or heat resisting metal anchors are available for linings of any desirable thick ness up to 131--> inches and are adaptable to furnace walls made up of various combinations of materials. BRIKRAM is shipped ready for use in bulk in 100 and 200 lb. drums, and in sliced form in 100 lb. cartons. Refractory anchors or heat resisting metal anchors are available for linings of any desirable thickness up to GREFCO SILLIMANITE PLASTIC 131/2 inches ami arc adaptable to furnace walls made up GREFCO SILLIMANITE PLASTIC is a kyauite base, of various combinations of materials. air setting plastic refractory. It is recommended for patch SUPER BRIKRAM is prepared from specially se ing fireclay, high alumina or SILLIMANITE brickwork. lected. highest quality calcined fireclay, mixed with suf Highly desirable properties are indicated by its volume ficient bond clay l< provide ease of workability. The stability at high temperatures and good resistance to the plastic develops a strong heat set at 2(HK) F. ami with abrasive ami corrosive attack of hot metal and slags. stands a working temperature of 31011 F. Very little ex- GREFCO SILLIMANITE PLASTIC, is furnished in 100 pausion ami contraction lake place upon healing and am! 250 lb. drums, in two dill'erent degrees of workability. cooling, which minimizes cracking ami spalling. SUPER No. 300 contains approximately 12r/o moisture, is very r . BRIKRAM is shipped ready for use in bulk in 100 ami ^ plastic and requires only light pressure for molding. No. 200 ib. drums. It is also furnished in 100 lb. cartons in 301 contains less moisture, is less plastic and requires conveniently sized slices. high pressure for molding--in some cases air hammers. 118 BRIK-CAST BRIK-CAST is a fireclay CASTABLES base, hydraulic setting, castable refractory mate rial. It is recommended for a large number of uses where temperatures do not exceed 2500 F. BRIK- CAST can be molded or cast in special wood or metal forms on the job, or precast into any desired shape and placed'in service without pre-firing. It is very useful in domestic oil burner and stoker installations, saving time and labor by eliminating the cost of special firebrick shapes. BRIK-CAST is also handled like concrete for patching firebrick work, for lining doors, and for pour ing baffles in boiler furnaces. Chemical characteristics are essentially the same as fireclay brick, as far as it is af fected by slags and fluxes. BRIK-CAST is furnished in dry powder form in 100 lb. bags, and is quickly pre pared by adding water. GREFCO LITE CAST GREFCO LITE CAST is a lightweight refractory con crete, hydraulic setting, suitable for working tempera tures up to 2300 F. It requires no pre-firing and is recommended for lining doors, casting special shapes, or lining furnace areas where a low thermal conductivity material is desired. GREFCO LITE CAST is shipped dry in 100 lb. bags and is prepared for use by adding water. BASICRETE BASICRETE is an easy-to-use, chrome ore base, hy draulic-setting, castable refractory, recommended for working temperatures up to 2800s F. It is similar to Plastic Chrome Ore in resistance to chemical attack by fluxes, slags and molten metals. It can be poured like concrete into forms, and may be applied by plastering, or with a cement gun. It has superior volume stability and load bearing ability at high temperatures. BASICRETE is the ideal refractory for protecting tubes, floors, walls and roofs of water-cooled boiler fur naces from coal ash and oil slags. Walls and hearths of heating furnaces are more slag resistant when constructed with BASICRETE, and some operators of forging fur naces have standardized on it for bottom construction. BASICRETE is especially suitable for speedy, low cost, durable patches in furnace floors and walls that have suffered damage or wear by slagging and abrasion. It is widely used for making special shapes of all kinds, such as peephole blocks, burner blocks, etc.--thus elim inating delays and costly inventories. BASICRETE is shipped dry in 100 lb. bags and is ready to use immediately after mixing with water. GREFCO SILLIMANITE CASTABLE NO. 367 GREFCO SILLIMANITE CASTABLE No. 367 is a kyanite base, hydraulic setting castable material, for cast ing or molding into forms. It is recommended for mono lithic construction where high refractoriness and freedom from spalling are desired. It may be formed into special shapes on the job at low expense. No. 367 is shipped dry in 100 lb. bags and requires merely the addition of water to develop its workability for installation. EVERHARD, H1AC, SUPERAC MORTARS EVERHARD, HIAC, and SUPERAC are fireclay base, heat setting mortars for laying and coating fireclay brick. They are made of calcined flint fireclay, or grog, combined with finely ground plastic fire clay, and are more refractory and lower in shrinkage than ground firo clays. Each brand of mortar is recommended for use with its comparable quality firebrick. EVERHARD mortar is available in all districts that produce high duty fireclay brick. HIAC mortar is used with HIAC brand super duty fireclay brick and comes from the same producing districts. SUPERAC mortar is the companion to high fired super duty fireclay brick . and is similarly available. All three mortars are shipped in dry powdered form in IftO lb. bags and are easily prepared by adding water. ft f 121 PLAINTIFF'S EXHIBIT I 75 02589 MORTARS & COATINGS SILICA BASE MORTARS ftAMD KAMI Ignisttt Silbrik Bond C.O. Sitiea Fireclay Silica Firaclay No. S Silica Firaclay MM MATERIAL Silica Silica Silica Silica Silica KC Bffif* K ua pwno OONOmOM taoaufCic qMmtXINwft WiwATEuR i TAaKfjvwTV. MgaMaTwV 23 2B00'F Air-sat Wat 300-400 0 2 32 3100'F Mild Air-sat Dry 27 2900*F Haat-sat Dry 200-400 200-400 22 29 10 14 29 3000*F Haat-sat 26 28S0*F Haat-sat Dry 200-400 U 16 Dry 200-400 10 14 ----------------------------------------------------------- w--------------------------------------------------------------- MAGNESITE AND CHROME BASE MORTARS NMO RAM Paratan Mortar Kromebond Kramaaat No. 3 Chroma Mortar No. 4 Chroma Mortar No. 7 Chroma Mortar ASC MATERIAL Mifnatita Chroma A Mafnaaita Chroma Chroma Chroma Chroma A Magnetite ret 3g+ 38+ 3B+ 3S+ 38+ 38+ ttummnret 3100'F 3100*F 3100*F 3100*F 3100*F 3100*F ^mSSWQSlSnSTw ill, BayfiBya 52SS ttIBSMCX Haat-sat ChamicstBond Dry Dry 200-330 280-450 Alr-aat Dry 260490 Haat-sat Dry 2904S0 Haat-sat Dry 250-450 M1M Air-sat Dry 260450 tftXNM WATCH n*M---OK* `T.MLVA*l RVB'M'M.*pT#t4BI* 12 7.5 7.5 9 8 9.5 20 10.5 16 20.5 14.5 18.5 SPECIAL MORTARS AND COATINGS AMD NAME Sillimanita 343 Mattie Maintenance Coating AP Camant Grafite Ladle Wash Carbax Camant No. 4 Carbax Camant No. 4 Carbax Camant No. 4B MM MATERIAL Mullita Firaclay Fireclay Firaclay Silicon Carbida Silicon Carbida Silicon Carbida ret 34-33 32 15-16 34 38+ 38+ 38+ URVtCE uurr 3000*F 3000* F 2400* F 3000*F 3200*F 3200*F 3200* F ASUS, Air-sat Air-sat Hydraulic Mild Air-sat Haat-sat Haat-sat Air-sat LB*. M^UIRtD mimm condition lOOORfttCX Wat Wat Ory -- -- 425 Dry Dry Wat -- 500 500 Ory 500 *!? WATER 100 IRE Tatmju wag JWWTt JOWT1 ---- 9 -- 15 11.5 15 -- -- -- -- MemAs 15 75 02603