Summary of Coating Surveys on the Four Air Command Frigates (Zeven Provincien Class) (Onderzoek naar de conditie van de coatingsystemen op vier luchtcommandofregatten (Zeven Provincien Klasse))
Abstract
The condition of coating systems onboard four air command frigates (Zeven Provincien class) is subject to discussion within the Royal Netherlands Navy. An inventory has been made into the current condition of coating systems applied in a selection of various tanks and bilges, underwater hulls, topsides/superstructure and deck coverings. Types of defects and surface areas affected by these defects have been assessed accurately. Causes have been investigated. The survey has revealed that some of the selected coating systems are not fit for purpose (sew' age tanks, grey water tank 2, antifouling on LCF 3/4, deck covering F deck). The quality of the steel works (welding) can be improved, the application of the coating systems varied between poor to reasonable and several material selections/combinations on the superstructure were unfavourable. Bilges in pump rooms 2 and 3 are sensitive to pitting corrosion. These shortcomings and the lack of maintenance have resulted in a performance which is poorer than expected considering the short service period for various pans. Better results can be attained following a review of coating specifications, when quality control during new building is improved and more cleared guarantee agreements are drafted.
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 26, 2008
- Accession Number
- ADA485757
Entities
People
- R. Van Der Kaaden