UEW SF.BW SF.FLW PEW SF.EIW EIW AIW Grade of heat resistance() 120 155 155 155 180 180 200 Crazing resistance Flexibility Dilectric stength Abrasion resistance Softening resistance Heat shock resistance Moisture resistance × Acid resistance Alkali resistance Oil resistance Varnish resistance Xylene resistance Alcohol resistance Gasoline resistance Refrigerant resistance Solderbillity × × × : Excellent : Good : Slightly interior × : Inferior