The Vessel is fabricated out of PVDF sheets reinforced externally with FRP. Stirrers are fabricated out of M.S. Externally covered with PVDF, Both tested with H.V.H.F spark testers for leak proof ness. The thermoplastic lining is backed by conducting layer of FRP to facilitate any number of H.V.H.F Spark testing for future. These Vessels are an Ideal replacement to the conventional M.S. Glass lined and Teflon coated vessels in majority of the cases.