pre finals Flashcards
includes keeping boats in good, safe operating condition, cleaning them regularly, replacing and properly recycling batteries, inspecting emergency flares yearly and regularly inspecting vessels for leaks.
Vessel maintenance
This type of maintenance is basic and
simple as it is defined as breakdown maintenance. In this maintenance policy, the repair or replacement is performed only when a failure occurs.
Unplanned Maintenance
Maintenance scheduling or planning embraces all activities necessary to plan, control, and record all maintenance activities. Planned maintenance is based on a defined schedule of equipment maintenance. This maintenance policy is the standard practice today in the majority of shipping companies
Planned Maintenance
Read the Safety Data Sheets (SDS) for the products before application. Make sure all Health, Safety and Environmental (HSE) requirements and recommendations concerning paint application are followed.
Safety
Calculate the expected volume for the area by using the Onboard Maintenance Manual paint calculator.
Consult the TDS for recoating intervals. Make sure you have sufficient
volumes of all paint types needed for
the job.
calculation
Divide the vessel maintenance into smaller manageable areas.
Evaluate the condition of the area designated for maintenance and the extent of defects that needs to be repaired. Refer to the Onboard Maintenance Manual´s (OMM) maintenance chart for suitable paint for the area to be painted. Check type of existing coating in order to assure paint compatibility, refer to
Technical Data Sheet (TDS).
Evaluation
Take into consideration current weather conditions, forecast and the time of day. The temperature of the substrate should be minimum 3˚C above the dew point of the air to avoid condensation. Remember to include
risk of condensation also after the paint is applied.
weather conditions
turn smaller patches of rust into one larger area by removing the paint between the rust patches. Remove rust manually or mechanically by use of power tools. Mechanical removal is recommended as it offers higher efficiency and better results.
De rusting
Clean all surfaces using water soluble detergent and high pressure fresh water. Remove salt, oil, grease, loose coating, dirt and detergent prior to de-rusting.
Cleaning
After de-rusting remember to remove all particles etc. from the prepared surface prior to painting. If possible, use the working air available on deck.
Remove Particles
Paint immediately after the surface is prepared – in order to avoid blank, increased salt levels and flash rust on bare metals.
Avoid contamination
If the surface is contaminated prior to painting, a final wash is recommended. Use high pressure fresh water. Alternatively hose down thoroughly with fresh water combined with manual scrubbing.
in case of contamination
For one component paint, be sure to stir the paint using a mechanical mixer for minimum two minutes, until the paint is homogeneous before use.
one component paint
When part mixing a pre-calculated volume, measuring can be done by using a scoop/cup or a measure stick. Consult the TDS (Technical Data Sheet) for the correct mixing ratio. Stir both component A (base) and component B (curing agent) separately before adding them together in a clean tin. Then stir the two components together for minimum two minutes, until you have a homogeneous mixture, using a mechanical mixer. If stirring is done manually,more time is needed.
Two component paint
For pitted and difficult to reach areas and for primer application direct on steel, brush application is recommended.
Paint brush
