Abstract
This paper will discuss design and fabrication methods of dual-laminate (thermoplastic lined) fiberglass construction as well as various case histories involving this type of equipment. The design and fabrication discussion will include construction techniques, thermoplastic selection, recognized design standards, thermoplastic bonding types, the fabrication sequence and advantages of dual-laminates. The case histories discussed include service environments containing sodium hypochlorite, high purity chemicals (both acids and bases), bromine, sodium hydroxide, concentrated hydrochloric acid, and caustic at temperatures ranging from 149° F (65° C) to 300° F (149° C) in vessels ranging in size from 2’ (0.6 m) diameter to 20’ (6.1 m) diameter.