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Table IV. Physical Properties of Sheet Linings Temperature Resistance Type Natural rubber Soft Semihard Hard Neoprene Butyl rubber Chlorobutyl rubber Polyvinyl chloridE Plasticized Plasticized rigid (2 ply) Chlorosulfonated polyethylene Fluorocarbons Max., O F (O C) 150 (66) 180 (82) 180 (82) 180 (82) 185 (85) 185 (85) 150 (66) 150 (66) 275 (135) 450 (232) Chemical Resistance Very good Very good Very good Very good Very good Very good Excellent Excellent Very good Excellent systems are based on the following resins: furan, epoxy, polyester, vinyl ester, and urethane. These systems are entirely appropriate for application to steel and concrete. They have also been successfully applied to wood, certain plastics, and various metallic substrates. These lining systems utilize such filler reinforcements as flake glass and mica. Fabric reinforcements such as fiberglass are the most common; however, synthetic fabrics are used where fluorides are present. These linings are extremely versatile and can be applied by maintenance per- Table V. Chemical Resistance of Sheet Linings Medium Aluminum salts Cadmium salts Chromic acid, to 10% Copper salts Gold cyanide Hydrochloric acid Hydrofluoric acid Iron salts Magnesium salts Nickel salts Nitric acid, to 20% Perchloric acid Phosphoric acid Sodium chloride Sodium cyanide Sodium hydroxide, to 30% Sodium salts Sulfuric acid, to 20% Trichloroethylene Trisodium phosphate Zinc salts 1a R R NR R R R R R R R NR NR R R R R R R NR R R NR R R NR NR R R R NR NR R R R R R R NR R R R, recommended; C, conditional; NR, not recommended. a 23 4 R R R R NR R R R R R R R R NR R R R R R R NR R R 5 R R R R R R R R R R R C R R R R R R NR R R R R R R R R NR R R R C NR R R R R R R NR R R 1 = natural rubber—all grades; 2 = Neoprene; 3 = Butyl and chlorobutyl; 4 = polyvinyl chloride; 5 = chlorosulfonated polyethylene; 6 = fluorocarbons. 627 6 R R R R R R R R R R R R R R R R R R R R R