Part no: 10395

Thruster Lubricants delivering superior anti-wear, EP and corrosion protection even when water ingress occurs

HYDROX EP 150 is an extreme pressure (EP) gear lubricant based on mineral oils which have been designed primarily for the lubrication of thrusters. HYDROX EP 150 will absorb any sea or fresh water that may enter the unit to form a fluid emulsion thereby continuing to provide the required lubrication and corrosion protection.

The emulsions, once formed, have excellent stability, therefore free water is not released.  This ensures corrosion protection is maintained even during prolonged standing and during the critical time of start-up.

ISO 9001
ISO 14001

HYDROX EP 150 lubricants (both neat oil and also emulsion form) have been successfully tested by Class and their stability, lubricating and corrosion protection performance have been verified by Lloyds Register.

In accordance with best practise and some OEM guidelines we would, however, always recommend monitoring water content and taking remedial action once the water content exceeds specific OEM limitations for regular running.

HYDROX EP 150 provides a very high standard of anti-wear performance suitable for the lubrication of heavily loaded gears, giving high resistance to micropitting and scuffing. They have been formulated to be suitable in applications where a combined gear lubricant/hydraulic function is required.

The lubricants have been formulated to have good compatibility with the elastomers used for seals fitted in the marine equipment. They have been tested and approved for use by the major seal manufacturers.

HYDROX EP 150 is compatible with many other EP type lubricants and therefore can usually be added without special precautions.


DescriptionMineral oil based lubricant for use in auxiliary or main propulsion thruster units.
Typical Viscosity (cSt @40°C)150
Viscosity Index102
Density (kg/ltr@15°C)0.9
Pour Point IP15 (°C)< –20
FZG Extreme Pressure Test for Gear OilsPasses load stage 12

Safety Data Sheets (SDS) available to customers

Please or register an account to access.

If you’re having difficulty logging in please try resetting your password