Underwater Propeller Polishing

According to the ICCT, propellor polishing can reduce gas emissions by 2% – 5% and when executed on a regular period basis; 2.5% – 8%. The same can be said for hull cleaning, which can reduce gas emissions in a range of 1%-10%. With the new regulations being adopted by the IMO come 2023 in regard to decarbonization through ship emissions, a trusted underwater service partner who can deliver reliable services around the globe will be paramount to ensure your vessel remains in the acceptable range of A,B, or C.

Propeller surface roughness directly effects propeller efficiency. New propellers are delivered with a higher surface roughness than propellers polished underwater by Ebunu Offshore Services Ltd. Why? Ebunu Offshore Services Ltd uses a multi-stage polishing process to consistently deliver a propeller polished better than Rupert “A”. What does this mean to your ship? Higher propeller efficiency equals lower fuel consumption. Ebunu Offshore Services Ltd is pleased to be able to provide Rupert A+ propeller polishing through proprietary techniques delivering a consistent 0.4 micron surface roughness.

Ebunu Offshore Services Ltd continues to research and develop new process methodology to make this typical maintenance chore into an essential fuel saving efficiency improvement and driving more dollars to ship owners and operators bottom line. Let us be a strategic part of your Ship’s Efficiency Management Plan.

Test Protocol and Purpose

The multi-stage process was perfected in Ebunu Offshore Services Ltd underwater training tanks on actual propeller blades, allowing accurate roughness measurements to be taken electronically. The procedure was developed over time using many conditioning pads of various surface types and materials. The final outcome established the optimal materials, equipment, and time. ​Wartsila Propulsion attended the testing providing 3rd party verification of all testing results, the Ebunu Offshore Services Ltd process, and materials used.

Have an underwater maintenance or repair service request?


Ebunu Offshore Services Limited provide underwater maintenance and repair services to your marine assets. Contact us to request a service quote today!