Dual laminate vessels combine the chemical resistance of thermoplastic liners (such as PVDF, PTFE, FEP, and PFA) with the exterior mechanical strength of fiberglass reinforced plastic (FRP).
Selecting the optimal liner thickness, sheet welding method, and bonding mechanism (whether spark testing or vacuum adhesion) is critical when storing aggressive media like hydrochloric acid, sodium hypochlorite, and wet chlorine gas.
This technical article highlights key procurement criteria, quality assurance checkpoints, and fabrication standards required to guarantee long-term dual laminate performance.