Thruster Leakage

Reduce the wear and tear and stop your leaking thrusters with our ABCON

MARINE-THRUSTER SL products – no dry-docking, continue operation!

Thruster Leakage

Thruster leakages occur when they are least expected. By adding one of our ABCON MARINE-THRUSTER Stop Leak additives to the existing system oil, the leakage will be stopped or reduced to an acceptable level in severe cases. We have products which are compatible with all kind of thrusters lubricated with either mineral oil or biodegradable oil. They can stop leakages in rotating and tunnel thruster units and controllable pitch propeller systems. We also deliver to rotating thrusters, both Azimuth and Azipot.

​Quantity Measurements

  • With a smaller leakage (below 0.5 liters/hour), we recommend our ABCON MARINE-THRUSTER SL 
  • With a larger leakage (between 0.5-2 liters/hour), we suggest our ABCON MARINE-THRUSTER SLL
  • With a major leakage (between 2-4 liters/hour), we advise you to buy our ABCON MARINE-THRUSTER SLLL

The SLL and SLLL have the same properties as the SL, but are developed with larger and more complex particles which increase the effect on larger leakages.


The high content of complex teflon particles produces a sealing layer on top of the seal. As a result, the leakage is significantly reduced or stopped. When SL or SLL is blended with the existing system oil, the blend constitutes an excellent lubrication which – due to the teflon particles – maintains its lubricating effect even with saltwater in the system. All our THRUSTER Stop Leak products have hydraulic oil as base oil. This means that it is compatible with gear oil and hydraulic oil, and can, therefore, be used on fixed propellers and CPP propeller systems. 

Bio Based Version 

Our products are also available in Biodegradable oil-based versions with both saturated and unsaturated ester. They all comply with the 2013 EPA VGP requirements as environmentally acceptable. For more information about our Bioproducts click here.

Our THRUSTER SL products are easy to handle and can be applied by the staff onboard the vessel.

Still Have Questions?

If you have any questions about your case, please, do not hesitate to contact us. We provide individual consultancy based on your specific situation. If you want more detailed product information or need a professional perspective on your case, please, contact us by e-mail:

Select product

Stern Tube Leakage

Thruster Leakage

B Series EAL

Stern Tube Water Ingress

Thruster Water Ingress


Stern Tube Preventive

Thruster Preventive

Other Products

Contact us