Corrosion Control
Corrosion control is
considered a 'BLACK' art still today, even after a
hundred years of scientific research and development.
Any time mystery damage or alarmingly increased
deterioration is noticed, ELECTROLYSIS is blamed. The
contentious nature of the subject matter and the
inability of industry specialists to agree to a standard
adds to the mystery that perpetuates this reputation.
Even the term ELECTROLYSIS, which is commonly used to
describe this deterioration, is a misnomer. The term we
are looking for here is actually galvanic corrosion.
Even in the case of extremely isolated incidents, the
truth of the matter is that we have it all pretty well
figured out, as long as we can see what happened. And
that means that is usually by the time a qualified tech
is brought in to do a corrosion survey or investigation
because of a suspected condition, many have already
tried to correct or troubleshoot the problem. The
unwitting result is that the many valuable clues may
have been compromised.
The most common conditions of the bonding/galvanic
protection system, both good and bad, are no real secret
to us ether. Poor condition of bonding conductors or
connections, for example, will be revealed during a
standard survey. All vessels in sea water should have
their hull potential and bonding system integrity
checked at least once a year. Ideally, a log book should
be kept of all professionally performed surveys, any
conditions found, and the corrective measures taken.
Also helpful in the same document/folder is all the
pertinent zinc information (anode and cathode parts if
impressed system is in use), including frequency of
replacement, dates, condition, etc..
If there truly is a problem that seems to be a stray
current or a dock power related condition, proceed with
extreme caution. If the vessel is in fresh water, have
the situation examined immediately by a professional and
don't allow any swimming in the area.
Always use certified technicians in all of your
projects, but with electrical projects and boats in
particular, saving a buck can take on a whole new
meaning.
Voda is ABYC
certified in corrosion control. Schedule an appointment
today and have a corrosion survey performed. Galvanic
corrosion can cause extensive equipment damage and
having a survey done early can be the difference between
and minor job and a major problem.
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