Nautical Anodes

Rakicevic Vetus Anode

VT-803500

VT-803508

VT-803509

VT-803501

VT-803503

Bow Thrust

BTR-801051

BTR-801050

BTR-801052

Engine Cooling System Anodes

Rudder Anodes

Flaps Anodes

FLP-800211

FLP-800213

Shaft Anodes

Shaft Collar Anodes

Bolt – On Anodes

BLT-800224

BLT-800231

BLT-800238

BLT-800225

BLT-800266

BLT-800260

BLT-800267

BLT-800269E

BLT-800270E

BLT-800271E

BLT-800272E and BLT-800273E

BLT-800274E

804DIVER

Weld – On Anodes

Stern Anodes

STN-800130

STN-800140

Zin Rod Anodes

Magnesium Rod Anodes

WHAT IS CORROSION?

Corrosion is the deterioration of a metal as a result of chemical reactions between it and the surrounding environment. It comes in many different forms and can be classified by the cause of the chemical deterioration of a metal. Corrosion occurs in all water environment and the consequences are very bad for the ship owner.

One of the types of corrosion that is common for marine environment is galvanic corrosion. Galvanic corrosion is an electrochemical process caused by dissimilar metals in an electrolyte because of the difference in potential of the two metals. In galvanic couple, less noble metal becomes the anode and the other, more noble metal, the cathode. The anode, or sacrificial metal, corrodes and deteriorates faster than it would alone, while the cathode deteriorates more slowly than it would otherwise.

There are several ways to prevent this kind of corrosion. Most efective way is cathodic protection. Main component of this tehnique is sacrificial anode that is made of a metal which is more active (less noble) than the protected metal. Metal surface that needs to be protected now becomes cathode of an galvanic couple. Anode is sacrificed in order to protect parts of boat that are underwater.

It is important to make good electrical contact between metal you want to protect and anode because if this contact is not properly made, anode will not work and your boat will not be protected. Also, before installing the anode, metal surface must be clean and all paint must be removed. Painting the anode is not recommended because anode can’t work if it’s covered up.

One of the most important thing is to use high quality anodes if you want to protect your boat in best and safest way and to know which alloy to use in certain water environment. Having that on our mind, we in Nautical Anodes Rakicevic put quality on first place. Alloys of metals used for sacrificial anodes are zinc, magnesium, and aluminium. It is important to know which alloy to use in certain water environment.

Use Zinc in salt water, Aluminium in salt and brakish water, Magnesium in fresh water. For all 3 types of sacrificial anodes the samerules applies, they have to be monitored and eventually replaced to maintain proper cathodic protection.

Brochure

Nautical Anodes Catalouge