Everlube 1174 coating released for subsea o&g applications

The two bolts tested with the new coating

The two bolts tested with the new coating

Often the failure of subsea bolts has been a major cause of gas or oil leakage in offshore installations, so along with the access difficulties for maintenance teams, preventing the premature failure of these components is certainly desirable wherever possible.
A comprehensive range of corrosion tests have been carried out on our newly developed Everlube 1174® Coating, in combination with a variety of pre-treatments, and 1500hrs of salt spray protection when applied over a phosphate pre-treatment were provided, 2500hrs over Zinc plating and 5000hrs over a Cermet basecoat. The two tested bolts showed near zero corrosion and easy removal of the nut after 1500hrs in the salt spray cabinet as per ASTM B117.
In addition, subsea bolting systems can come into contact with a wide variety of chemicals, from those present in sea water to those used in various oil extraction equipment. Hydraulic fluids for example, are extremely aggressive and can readily breakdown low grade coating systems. Everlube 1174® has been formulated to resist all current hydraulic fluids used in the oil and gas industry.
Typical applications include wellheads, Xmas tress flanges, structural connections and flanges.