Press releases

Tailor-made, reliable and good for the environment

February 29. 2012

Tailor-made, reliable and good for the environment

New stern tube oil expands the range of readily biodegradable oils for the maritime and offshore industry.

More and more operators and suppliers of maritime and offshore equipment are involved in minimising their impact on the environment. These efforts affect the choice of lubricants used in ships, and machinery in general. With speciality lubricants enabling sustainable and profitable solutions, Klüber Lubrication supports shipowners, OEM's and operators in reaching their environmental goals more easily.


Klüberbio RM 2-100, the new readily biodegradable stern tube oil, is designed for the lubrication of propeller bushes and propeller shaft seals of fixed-pitch and controllable-pitch propellers. The synthetic speciality oil is non-toxic to marine organisms - according to OECD 201, 202 and 203 tests - and its biodegradability is at least 60 per cent according to the OECD 301 F test. A leading global manufacturer of propeller shaft seals subjected the new stern tube oil to a dynamic endurance test on a test rig fitted with the original seals, and it passed successfully.

Klüberbio RM 2-100 is an environmental-friendly, reliable alternative to conventional mineral oils. Just as the first oil of this series, Klüberbio RM 2-150, the new oil with viscosity 100 facilitates smooth start-up of propellers, even at very low temperatures. Whereas Klüberbio RM 2-150 is designed for application in moderate and warmer regions of the world, the new Klüberbio RM 2-100 copes reliably with the colder regions. Both Klüberbio RM 2 oils have a long service life owing to their good stability against oxidation, hydrolysis and temperatures. Klüberbio RM 2 oils are miscible with mineral oil-based stern tube oils for easy changeover.

In the development of both Klüberbio RM 2 oils, Klüber Lubrication cooperated closely with its affiliated companies SIMRIT and Merkel Freudenberg Fluidtechnik, both leading suppliers of shaft seals and profiled seals to the maritime industry. Like Klüber Lubrication, these two companies belong to the Freudenberg Group. Together, the three companies are therefore in a unique position to match elastomers and lubricating oils for the taxing requirements of propeller manufacturers and shipowners.

About Klüber Lubrication

Klüber Lubrication is one of the world's leading manufacturers of speciality lubricants, offering high-end tribological solutions to virtually all industries and markets worldwide. Most products are developed and made to specific customer requirements. During its more than 80 years of existence, Klüber Lubrication has provided high-quality lubricants, thorough consultation and extensive services, which has earned it an excellent reputation in the market. The company holds all common industrial certifications and operates a test bay hardly rivalled in the lubricants industry.
Klüber Lubrication, set up as a retail company for mineral oil products in Munich in 1929, is today part of Freudenberg Chemical Specialities, a Business Unit of the Freudenberg Group, Weinheim. In 2011, Klüber Lubrication had approximately 1900 employees in more than 30 countries.