What causes leaks in stern tubes, tunnel thrusters and CPPs? Insufficient lubrication of seals during dry docking Oil film pressed out under stand still Fishing lines pulled into seals Sand and other impurities damaging seals when

passing through shallow waters (eg, harbors and rivers) What do ABCON SL products do?

Specifically designed teflon particles form a barrier in the gap between the rubber seal and shaft surface

Other additives improve the quality of rubber seals

4,100 tdw coaster Lost 100 L/day in May 2006 After 24 hours of adding 10% ABCON-STERN

TUBE SL, leakage was reduced to 2-3 L/day Vessel continued to sail without further repair

(for 1.5 years) until planned dry docking in late 2007, where new seals were installed

16,000 tdw ferry Bow thruster began leaking in November 2007

ABCON-THRUSTER SL was added and leakage stopped

Additional benefits seen Vibrations before were 3.7 mm/sec Vibrations after were 2.8 mm/sec Vibrations a newly reconditioned 2.2 mm/secShows a layer of teflon has been added to

shaft

16,000 tdw ferry March 2008: scheduled dry docking

Thruster motor shaft bevel was worn, hardened gear tooth surface was compromised and iron content in lube oil was exceeding limits

Rolls Royce could not supply replacement shaft for 8 months ABCON-THRUSTER+ and ++ was added (40 L total volume)

Teflon particles permanently adhered to surface of gear teeth, provided lubrication which reduced gear friction and iron levels in lube oil to allowable limits

January 2009: ABCON visits Rolls Royce in Aalborg Rolls Royce confirms ferry has not ordered spare parts to date

March 2013: no replacement parts ordered since as:• Ferry S/I reported bevel continues to function well• Since iron level is acceptable, class approved continued operation

29. July 2012

We have had the great pleasure of using your products for our stern tubes, tunnel thrusters and conventional seals. I am planning to dock Princesse Benedicte in week 44-45 at Orskov Shipyard, but I do not intend to open the stern tube stuffing boxes as they are very tight. We have gone from 2 years to 4 year-intervals between overhauls.

With kind regards,Fini Alsted Hansen Technical Superintendent, Fleet Management Scandlines Danmark AS

18. August 2012Yesterday we received your product. I must confess I am on the verge of being religious. For more than 16 years I have worked in various ships, fishing and off shore, but never have I seen anything more effective. After 3-4 hours the leakage had so to say gone.Alternatively we had to go to dry dock plus 6 weeks waiting time for a new stern tube seal.

Med vennlig hilsen / Best regardsSigmund RoksvågChief EngineerMV Eidsvaag VegaEidsvaag ASGurvikdal, N-7270 Dyrvik, Norway 

 

Suppliers recommend repairing damaged seals immediately Ship owner has 4 choices

Go to dry dock for repair Call for a specialized underwater repair team Add thicker lube oil Use staff on-board vessel to fill ABCON SL

product

ABCON products are delivered as a concentrated paste, resulting in: Lower product prices Lower transport prices via unrestricted Air

Cargo, including all passenger planes (non-dangerous goods)

Easy to handle on board vessel Delivered in 5, 10 and 20 L pails

ABCON MARINE-STERN TUBE SL ABCON MARINE-STERN TUBE SLL ABCON MARINE-STERN TUBE CSL ABCON MARINE-STERN TUBE BSL ABCON MARINE-STERN TUBE BSLL ABCON MARINE-THRUSTER SL ABCON MARINE-THRUSTER SLL ABCON MARINE-HYDRAULICS SL

More than 150 vessels have been treated with More than 150 vessels have been treated with ABCON MARINE - STOP LEAK ABCON MARINE - STOP LEAK productsproducts