Oil & gas industry, UK.
First application – 1983.
Maintenance review – 2004.
Maintenance work to clean, inspect, touch up minor mechanical damage externally, and recoat flange areas.
Polyglass Standard for original coating in 1983. Corroglass 600 Series for repair work in 2004.
These seawater pump riser pipes first came to Corrocoat 21 years ago, and were protected internally and externally with the original Polyglass Standard product.
During the service life, which comprised external exposure to seawater (immersed, splash zone and atmospheric), and internally, seawater with a low hydrochlorite dosing (4%), the coating has not shown any tendency to undercut, and only minor mechanical damage was needed to be repaired.
The sustained performance of Polyglass Standard under adverse operating conditions demonstrates the products’ suitability for use in diverse applications throughout industry.
The pipes as returned after 21 years’ service.
Flange area illustrating no under-cutting.
Pipes in coating – almost complete.