Client requested surface preparation and corrosion protection of a 6.5m long x 1.9m diameter produced water vessel. The 2mm thick lining had multiple failures, mainly around the nozzles and bottom 3rd of the shell.
Polyglass VEF, Plasmet ZF
Top coat: Corrothane AP1
Carbon Steel
• Abrasive blast to ISO 8501-1 SA 21/2.
• Prime prepared internal surface using
• Applied multi-axal glass fabric to the bottom 3rd of the vessel and any nozzles requiring additional protection. The matting was wetted with L600 laminating resin and rollered in to place to remove any trapped air
and aid adhesion.
• Applied polyglass VEF to achieve minimum DFT of 1250 microns.
• Abrasive blasting to external surfaces with new abrasive in accordance with ISO 8501 – to Sa2 surface finish profile of 50 microns.
• Two coats of Plasmet ZF and a single top coat of Corrothane AP1.
Polyglass VEF was selected as it is excellent in immersed environments. Has vert good resistance to solvents, acids and de-mineralised water and excellent flexibility, undercutting resistance and
sliding abrasion.
