The topic is back.....last year, in an attempt to inhibit the growth of
mussels on the prop and prop shaft, I coated them with lanolin.....was
told or read this would help. When the boat was hauled in October, the
prop/shaft were completely encased in mussels, again. The growth has a
noticeable, negative effect on the performance of the prop later in the
season e.g. higher RPM's to attain same cruising speed when motoring.
After trying a few so called 'remedies', I am now convinced the only
effective way to keep the prop free of marine growth (mussels on mine)
is to dive a few times a season and physically remove them. Maybe I
need a few pounds of lead, my safety harness on and tethered to the
toerail and a few feet of hose the top end tied to the pushpit and me
breathing from the bottom end.
However, before I comtemplated something like that, there is one more
'remedy' I have heard/read about......it involves coating the prop/shaft
with "galvanized zinc spray paint". I have never seen this done and do
not know what effect it might have on the bronze prop (shouldn't be
negative but I'm not sure). There is never any marine growth on my
sacrificial zinc(s).
Has anyone heard of this? Anyone with any experience with this paint on
props?
Bob Abbott
AZURA
C&C 32 - 84
Halifax, N.S.
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