Document LKrZmkw1j3GgwYdYdNO1XZ3wg

TECHNICAL DATA PLAINTIFFS EXHIBIT ] Pyroscat is a special formulation of high-temperature aggregates, asbestos fibers, hydraulic binder and other materials. These ingredients are factory blended to a uniform dry mixture that is ready for application after mixing with water at the job site. .Pyroscat is adapted to application by spraying, casting and trowelling techniques, depending on job conditions. USES: Pyroscat provides a lightweight, fire-retardent protective-treatment for structural steel columns, beams, tower skirts, LP gas tanks, and other exposed applications in refineries and chemical plants. Pyroscat sets up to a hard, durable sheath capable of withstanding for hours the 2000F. flame temperatures and High-pressure water streams commonly encoun tered in industrial fires. : > , RECOMMENDED THICKNESSES: Fire-retardent materials are customarily rated in Hours, based on a given thickness used and on the method of application. For example, fire ratings .for steel columns represent the number of hours required for'heat from a "standard fire" to penetrate" the protective treatment as applied, and to increase the steel column temperature to a critical level (1200F;). The thermal conductivity and-heat capacity of a material are of some impor tance in an ASTM Fire Test. But the ability of the complete treatmentto withstand thermal shock without destruction is one of the most significant factors in determining practical fire ratings in industrial installations. The Pyroscat thicknesses recommended below were determined by physical tests on a series of sprayed, cast and trowelled applications. Tests in cluded direct exposure to 100 psi hose pressure, both before and after subjecting the Pyroscat treatment to severe flame conditions. Thickness of Pyroscat 1" 1-3/4" 2" Approx. Fire Resistance Rating 2 Hours 3 Hours - (UL-R-3960 4 Hours ADVANTAGES OF PYROSCAT Safer While Fighting Fires .... Many concrete aggregates and common bricks used for fireproofing purposes will spall and shatter when they are heated and subjected to a hose stream. Pyroscat. remains virtually unaf fected after direct flame exposure and saturation with alOOpsihose stream. Mav. 1964 A ADVANTAGES OF PYROSCAT {Continued) r ----------- -- Lighter Weight. ... Pyroscat weighs less than 55 1bs./cu. ft. in place, compared to approximately 150 lbs./cu. ft. for conventional concrete fireproofing. Excess dead weight is eliminated. As usually sprayed or trowelled in a protective sheath, Pyroscat weighs about 1/10 as much as formed concrete - at equivalent thickness per running foot. Spray, Cast or Trowel. .. . Pyroscat is specially formulated to permit installation by spray, trowel and casting techniques, depending on local job conditions. No other fireproofing material is as versatile, from an application standpoint. Em ploys conventional supporting materials and placement. Only the one fireproofing material is required - no need for subsequent finishing layers nor heavy mastic coatings. Durable and Weather-Resistant.... Pyroscat develops great strength from its selected high-temperature aggregates and hydraulic-setting binders. It with stands continued cycles of saturated freeze-and-thaw weathering tests. SUMMARY OF PHYSICAL PROPERTIES: Coverage (Trowelled) 1.1 cu. ft. / 50 lb. bag Material Required (Trowel Application) 45 lbs. per cu. ft. Air-Cured Weight (After Hydration and Drying) 54. 5 lbs. per cu. ft. Compressive Strength - Air-Cured 1650 psi Compressive Strength After Firing at 1500F. Lineal Shrinkage - Air Cured Lineal Shrinkage After Firing at 1500F. Density After Firing at 1500F. 1. 5% Less than 1% 1. 5% 49.1 lbs. per cut ft. Fusion Temperature o Thermal Conductivity (k) at 1000 F.Mean Temp. 2200 F 1.50 Btu Setting Time Mixing Water: 4 to 6 hours For Spray & Trowel Consistency 3-1/2 Gal. water/50 lb. bag For Casting Consistency 5 Gal. water/50 lb, bag Curing: Pyroscat is a cementitious material and should be kept moist during the curing period of 72 hours or longer. REFRACTORY & INSULATION CORPORATION 625 ILLINOIS AVE. AURORA, ILLINOIS PORT KENNEDY PENNSYLVANIA