Case Histories and Ratings vs Corrosives of Polyester Fiber Glass Equipment★
Abstract Polyesters used in situations where their chemical resistance is important are grouped into five types for convenience in considering their value under attack by industrial corrosives at varying temperatures. Data were compiled from information supplied by four of the major producers on polyester ducts, hoods and tanks as were 17 illustrations of equipment. Pictured equipment is described, environment indicated and durability reported. Corrodents involved include sulfonated fish oil, acidified oils, HCl containing benzene, nitric acid, hydrochloric acid and fumes, plating solutions, sulfuric acid and others at varying temperatures. Some of the characteristics of and reasons for using lined equipment are given. The appendix consists of four tables in which polyesters are rated for service as open hoods and connecting ductwork and for tanks against a wide variety of industrial corrosives, plating solutions pickling and dipping solutions and stripping solutions. Over 5000 ratings are given as excellent, good, fair, poor and not recommended at temperatures of 80 F or less, 212 F or boiling point of solution, if lower: 160 F. 180 F. 6.6.8