Specialist Painting Group were asked to support on offshore and marine service provider with the refurbishment of the dive chambers whilst the vessel was docked at frederickshavn in Denmark. The dive chambers exhibited areas of localised corrosion due to the degradation of the existing coating system. Due to the confined space restrictions within the dive chambers, traditional methods of surface preparation were not feasible. SPG utilised high intensity Co2 blasting to remove the existing coating system, corrosion products and surface contamination. Once the dive chamber surfaces had been prepared SPG applied a two component solvent-free modified polyamine cured epoxy system.
|The transfer trunking to the bell chamber exhibits areas of corrosion and staining throughout. The existing polyurethane coating system has begun to degrade in localised areas with a high percentage of the coating system remaining tightly adhered and in good condition.|
|Areas of blistering, coating failure and corrosion development are clearly visible on the walls of the dive chambers.|
|The condition of the lip at the base of the transfer trunking highlights the source of corrosion staining throughout the transfer trunking.|
|The transfer trunking after the application of the two component solvent-free modified polyamine cured epoxy system.|
|The dive chamber walls after the application of the two component solvent-free modified polyamine cured epoxy system.|
|The transfer trunking and dive chamber after the application of the two component solvent-free modified polyamine cured epoxy system.|