FOR LIP TYPE SEALS WITH SEAL REVITALISER
An effective additive for Stern Tubes and Bow Thrusters can also be used in CPPs, Rudder Shafts and Rudder Machines
In most cases MPS 896 paste must be injected in its concentrated form to the stern tube via the drain pipe. It is necessary to have a suitable pump for application. Lindemann can supply a high pressure pump, which suits the 20 kg drum, for easy application. The pump can later be used for other purposes.Read more about the pump
MPS 896 has been developed specifically for use in leaking stern tubes with lip type seals.
MPS 896 is a very complex mineral based paste containing seal revitalising additives and providing extreme corrosion protection. It builds a “dynamic” seal supporting damaged and worn seals both in motion and at rest. Furthermore, MPS 896 holds the ability to revitalise seals giving them back their flexibility. In addition MPS 896 contains a very high amount of Teflon, which due to friction will embed the wear surfaces during operation, repairing minor defects in the contact surfaces between shaft and seal. This will prolong the life time of the seals.
It can be added at a rate of 10% of stern tube oil volume, as an additive enhancing wear protecting properties as well as the sealing ability in both inner and outer seals.
MPS 896 must be pumped directly into the stern tube via the drain pipe. If no drain pipe is available, the product should be pumped into the stern tube via the feed line going from the level tank to the stern tube.
Dynamic barrier in a stern tube
MPS 896 consist of a high concentration of PTFE and Bentonite, which will mix with the oil and travel towards the leaking place. These two elements will attach to the seal surface,filling in the cracks of up to 2mm.
Due to the centrifugal forces the solids will search towards the center of the shaft.
The fluorination of oil in its turn, where fluorine atoms make a “swarm” around each vacant carbon atom, will create a floating barrier.