Chris Jordan, Coatings Specialist for ConocoPhillips during construction of the Hutton and with more than 40 years’ experience of surveying in the North Sea said at the time of inspection:
“It is clear that after nearly 30 years in service, the high loaded glass flake epoxy applied on the tubular splash zone sections of the Hutton TLP hull is performing very well. Even areas subjected to abrasion from topside equipment such as pumps, ropes and chains are in excellent condition considering the lifetime… I would consider a glass flake epoxy, as used on the Hutton TLP, to offer the best corrosion protection for the splash zone of offshore assets.”
11 years after the initial assessment, and with the support of Nerida Decommissioning, AkzoNobel conducted a second assessment of the coating system to independently verify and report the results. Interzone 1000 meets the ISO 24656 specification standard on the use of a minimum 20% lamellar, non-micronized glass flake epoxy for category V corrosion protection, which is the highest performance category and the lowest breakdown factor for the entire lifetime expectation.