On Feb 17, 9:52�am, "Eisboch" wrote:


Mariners long ago discovered that one of the natural properties of copper
was it's ability to kill off bacteria preventing it from growing on it's
surface. *Copper plating was used, later replaced by anti-fouling paint with
very high copper content (until it was banned).


Tri-butyl tin was banned. Not copper, unless perhaps you're speaking
to just a local situation. With the disappearance of the more
effective, (but more toxic and more environmentally destructive) TBT
paints, copper is still the active ingredient in most anti-fouling
paint sold today.

There are a number of formulas that may eventually take replace copper
based paint, but most are either in the experimental stage or still
considered inadequate when compared to copper.