Sea Corrosion and Non-Slip Coating Solutions
Sea corrosion is a major problem for the shipbuilding and fishing industries. To ensure the long-term anti-corrosion protection of the ocean going vessels, metal spray is used on various parts of the vessels with an aluminium and zinc coating. Many parts of the vessels are specified to be metal sprayed for improved safety, durability and hence life cycle costs. Metal spray is much more durable than paint and independent European standards (EN14713 and EN2063) show that a life to first maintenance of 20 years or more can be achieved in sea water splash zones. The deck and the hull, which sits above the waterline, have to be metallised to protect them against the harsh sea environment.
Other parts of the vessels metal sprayed include: the Refrigerated Sea Water (RSW) tanks (where fresh fish are stored on board), fish processing rooms, chutes into the fresh fish tanks, net winching sheaves and drums, masts and the trawl boards. Not only are these elements exposed to the harsh, destructive sea environment, but also to the daily ravages of wear and tear of the equipment used in the trawling process. The durability of metal sprayed coatings means that maintenance downtime to re-paint these areas is greatly reduced.
Metal or thermal spraying is a technology that protects or extends the life of a wide variety of products in the most hostile environments and in situations where coatings are vital for safety and performance. Durable non-slip coatings can be applied for use on steel floors, ship decks and panels across diverse industries, from train steps and manhole covers to oil platforms and ships.
Below you can see the stern of vessel being sprayed with Zinc using a crane and the Arc Spray process.
Other areas where Metal Sprayed anti-corrosive coatings are applied include, but are not limited to: Radar Masts, Steam pipes, Exhaust pipes, Ladders, Lifeline Stanchions, Diesel Exhaust Stacks and Steam Riser Valves.
The reclamation of worn parts for ships is usually subject to Lloyd's Register, particularly on larger vessels. Reclamation applications include, but are not limited to: Propeller Shaft Bearing Journals, Turbo Hydraulic Pump, Rudder, Bilge Pump, Main Circuit Pump, Stabilisers, Capstan and Winches.
For a more in depth analysis of Metal Spraying in the Marine industry, Click Here.
