Immersed steel, aluminium, stainless, bronze: electrolysis and corrosion are permanent threats for your boat
Galvatest  detects electrolysis before it is too late...

Metal hulls made of steel or aluminium are primarily concerned by electrolysis and the regular control of their corrosion potential. Such control is conducted in "real time" on all big ships and is an integral part of formal ABYC (American Yacht and Boat Council) recommendations for all recreational boats in aluminium. Be very careful with your hanging anodes : if they are made of magnesium at sea, they will be likely to destroy your immersed paint work. 

Unlike metal hulls, wood or polyester hulls (GRP) do not carry electricity. Thus, propulsion systems, particularly S- or Z-drives, are very concerned by Galvatest control. Their carters are made of very conductive aluminium which stands as a primary route for on board or ashore stray currents seaking to travel through the sea...

40 mAh received during 30 days will definitely destroy 10 g of aluminium... And because it is a natural phenomenon, your boat did have, have or will have corrosion problems! Don't wait, act now! Consequences of corrosion – often costly – are never covered by insurance companies. Have a look at simulated consequences of a 1 Ah current leak received through an aluminium sail-drive during 100 days, page Demo & Cases.

Regular control of metal hulls and immersed equipments corrosion potential is a recommended practice of international standards and major boat and equipment manufacturers. All our electrodes sensors are individually tested. Patented technology. Galvatest is a member of F2N: Filière Nautique Normande.