Cavitation resistant coatings for rudder systems

It is all about minimising servicing and maintenance activities against cavitation, erosion as well as corrosion – particularly at the leading edge of the rudders. MetaLine’s elastomeric protection force technology has been proven outstanding effectful on all kinds of rudders including flap types – particularly on fast operating navy vessels.

Hard, harder, hardest – this most exactly describes the load parameters of modern marine propulsion systems.

Corrosion would still be the smallest problem, but there is also the impact of solids causing erosion as well as cavitation due to the high speed water flow. A mixture that usually knocks out known surface protection systems quite quickly.

MetaLine takes a completely different way with its energy-absorbing technology:

Soft, softer, softest – not paint, not epoxy-ceramic, not rubber, not metallic armoring – but a genious mix of the properties of all 4. This results in a hydrodynamically resistant protective layer with an unmatched erosion & cavitation resistance.

Admittedly, in most piping systems on board, good corrosion protective paints are a good way to go. In polluted waters with a high sediment content, however, things may quickly look different: The rust problems start in the pipe bends and continue over time through the flanges into the pipe itself.

Or on LNG tankers where the ballast water system may have to be used as a safety system for cargo cooling. There, longer service life, impact resistance and a safe, cross-flange corrosion protection are an extremely important safety plus. A case for our sprayable MetaLine elastomers – more efficient than rubber linings and more cost-effective too!

Suction dredging means continuous wear in maximum extend. Every downtime on board becomes a time and cost problem. Measures to extend service life, such as special alloys or coatings, are an absolute must. Whether for the refurbishment of worn components or for preventive relining: Polymeric protective materials are a way of cost-conscious equipment optimization.

The technical and financial value preservation of privately used watercraft and sports equipment is of particular importance to the owners. Even "touching hands" is sometimes a must. In contrast to commercial sailing, there are also aesthetic aspects. Surface protection must not only function technically, it must also be slip-resistant and kind to the skin, offer easy processing and remain manageable in its functional costs.