The jacket and the substation of Navantia have been protected with Jotun paints, applied by Gaditana de Chorro y Limpieza. The substation is designed for a 25 years life in marine environment, so the protective systems must guarantee a life of more than 15 years complying with ISO 12944, exterior C5M-H.
The surface treatment works began in May 2015 and ended in August 2016. All surfaces have been surface prepared to a Sa 2 ½ grade, in accordance with ISO 8501-1. The preparation of the surfaces have been carried out in closed workshops with metal abrasive. The application of the painting systems has also been carried out in controlled environmental conditions, being supervised and documented by Quality Inspectors of Gaditana de Chorro and complying with the standards required by this type of projects.
In the jacket, the coating systems comply with Norsok M-501, based on anti-abrasion epoxies and polyurethane finishes. For the “Andalucía” substation, the treatment has been designed to comply with ISO 12944, the exterior C5M-H and the interior C-4M. The exterior structure has been treated with high-thickness epoxy systems and polyurethane finishes.
The external decks have been treated with glass fiber reinforced epoxies (Glass-Flake), with thicknesses above 1,500 μm. The interior areas have been protected with epoxies and polyurethane finishes. It is noteworthy, as a novelty, that the boatlanding area has been metalized with Thermal Spray Zinc, being the first time that this type of treatment is carried out in the Navantia Shipyard of Puerto Real. All the works have been finished in a record time of 14 months.