Case Study: Coating of a coarse water filter vessel

Protecting components against sea water damage.

Client

Oil & gas industry.

Application Date

September 2007.

Scope Of Work

Internals of new vessel protected against sea water damage using Corroglass 600 Series and Polyglass VEF. Rebate flanges to protect against crevice corrosion. Terminate coating on steel rings.

Products

Polyglass VEF.
Plasmet ZF/Corrothane AP1.

Substrate

Carbon steel.

Internal Coating system

Grit blasted internally to ISO 8501 – Cleanliness
Standard SA 21/2.
Coated internally using Corroglass 600 Series/
Polyglass VEF to a minimum 1.25mm DFT.
Thickness checked. Spark tested at 19Kv.
Flange faces rebated and coated to prevent
crevice corrosion.

External coating system

Grit blasted externally to ISO 8501-1 – Cleanliness
Standard SA 2.
Applied two coats of Plasmet ZF with a topcoat of
Corrothane AP1.

Coating credentials

Polyglass VEF has a proven track record protecting
components against sea water damage. Many projects
completed by Corrocoat for use within a sea water
environment are still working well after more than
25 years in service.

Photographs

Left: The new vessel, uncoated.
Middle: Vessel coated internally and stripe coated
externally in preparation for top coat.
Right: Vessel externals coated with first full coat of
Plasmet ZF.