Seems to me that there's a lot of theory about this whole thing, and maybe, just maybe, it's safe to paint
an aluminium hull
with Coppercoat. But would I take the risk? Absolutely completely and definitely not! And we shouldn't be confused with tales of having applied Coppercoat to 40 steel
and aluminium boats without problems either - as has been stated already it's fine with steel
, possibly not with aluminium, so "40 steel and aluminium boats" is meaningless. 39 steel and 1 aluminium? 35 steel and 5 aluminium? Who knows?