Joel:
A club member with a Nonsuch 36 has tried Prop-Speed (he bought it in
Florida) here with little success...I have seen his prop at haulout the
past two seasons, better than mine, but it was still covered in marine
growth. He says he won't bother buying any more of it.
Bob Abbott
AZURA
C&C 32 - 84
Halifax, N.S.
On 2013/01/07 3:20 PM, Joel Aronson wrote:
There is a product called Prop-Speed (I think that's it) that is VERY
expensive but is supposed to be effective. I will try it at the next
haul-out.
On Mon, Jan 7, 2013 at 2:16 PM, Martin DeYoung
<mdeyo...@deyoungmfg.com <mailto:mdeyo...@deyoungmfg.com>> wrote:
Bob,
I have used Pettit's Zinc Coat Barnacle Barrier #1792 (locally $16
to $17 per rattle can) for more than 10 years. I have been very
satisfied with the results.
Here in the Puget Sound area (cold dark salt water) it keeps
growth off the prop and shaft for up to two years. One can covers
a three bladed MAX prop, the SS strut, and the SS shaft. Calypso
stays in the water year round. After about 18 months tiny
barnacles will begin to appear.
Application is easy. I give the prop, strut, and shaft a light
sanding, clean with solvent, then apply several coats with (at
>50F) 1 ½ hours drying time between coats.
Martin
Calypso
1970 C&C 43
Seattle
-----Original Message-----
From: CnC-List [mailto:cnc-list-boun...@cnc-list.com
<mailto:cnc-list-boun...@cnc-list.com>] On Behalf Of Robert Abbott
Sent: Monday, January 07, 2013 10:55 AM
To: cnc-list@cnc-list.com <mailto:cnc-list@cnc-list.com>
Subject: Stus-List Prop Mussel Farm
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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Joel
301 541 8551
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