Product Description

Biodegradable Stern Tube 220 is a more than 85% Ester Base synthetic biodegradable oil designed
specifically for stern tubes with both circulatory & non-circulatory oil-filled lubrication systems and is
particularly recommended where oil must be prevented from leaking past damaged or worn aft seals in
environmentally sensitive areas.

The vast majority of ships today are fitted with oil lubricated stern tubes. The stern tube bearings and the
tail shaft are required to operate reliably, often in extreme conditions due to vibration, water ingress,
flexing of the vessel’s structure, movement of the vessel in heavy seas and with variations of speed and
temperature. Any leakage into seawater can be detrimental to the environment.

Biodegradable Stern Tube 220 is the answer to that problem.

Biodegradable Stern Tube 220 is specifically designed as a stern tube lubricant where face or
labyrinth seals and rubber lift type seals or the new bio seals are employed.

Applications

Biodegradable Stern Tube 220 is recommended where an Environmentally Acceptable Lubricant
(EAL) type of stern tube lubricant is required.

Biodegradable Stern Tube 220 where an emulsifying type of oil is required to prevent leakage past
damaged or worn aft seals Biodegradable Stern Tube 220 is a high-quality Ester based synthetic
biodegradable lubricant particularly recommended for lubricating sliding rolling bearing from stern tube
in order to minimize environmental impacts.

Biodegradable Stern Tube 220 provides outstanding anti-corrosion & anti-wear properties, high
Viscosity Index, & excellent low temperature properties.

Benefits

  • Environmentally Acceptable Lubes (EAL) for 2013 Vessel General Permit (VGP)
  • Outstanding anti-wear and anticorrosion properties.
  • Very High Viscometric properties
  • Meets European ECO Label FR/27/D2
  • Minimises oil leakage past worn or damaged aft seals.
  • Minimises the risk of water ingress by absorbing large amounts of water.
  • Provides a very high level of lubrication protection against corrosion.
  • Adheres well to metal surfaces and is not easily washed off.
  • Compatible with common seals: VITON, PERBUNA, NITRILE NBR, NEOPRENE, SILICONE…
  • Compatible with new Bio seals

Packaging

1000 Litre IBC, 205 litre drum, 20 litre cube

Downloads

Safety Data Sheet – BIODEGRADABLE STERN TUBE 220 (25th January 2026)