[Public-List] painting prop

[Richard Mair]

Never had growth on the prop in the Bahamas,Canaries, or any of the Tropical
waters I was in..The Prop is Bronze which is copper and tin so you would
think it would have good antifouling in its natural state..
  That being said I did get growth in Halifax Harbour. At that time I was
without an engine so the prop never turned all season..Halifax Harbout is
also well fertilized.
Richard 609
Into The Blue

On Mon, Mar 21, 2011 at 7:11 PM, Glennb <brooks.glenn at comcast.net> wrote:

> I am curious as to how fast barnacles or other growth actually builds up on
> props?  I haul usually once a year and never have any serious
> fouling...although Puget Sound is not a hot bed for marine growth, I haven't
> seen people paint props in Hawaii or Cal waters.  Is this a significant
> problem in tropical waters around Florida?
>
> thanks
> Glenn
> SV Dolce, #319
>
> Sent from my iPad
>
> On Mar 21, 2011, at 2:58 PM, Mel Martin <mel.martin at utoronto.ca> wrote:
>
> > Penaten is basically zinc oxide, suspended in an ointment (probably
> mostly lanolin-based).
> >
> > Years ago (many!) I conducted a series of toxicology tests on the use of
> zinc and zinc oxide as an algaecide. The product we were testing was
> intended to be a replacement for the high levels of chlorine and bromine
> used to control algae growth in swimming pools. Zinc, in both its elemental
> form and its oxide was surprisingly effective at killing blue-green algae
> (cyanobacter), even at low concentrations. I would not be at all surprised
> to find that in the form of Penaten it was effective at controlling other
> bio-growth such as fouls propellers.
> >
> > Maybe the fisherfolk are onto something. I can imagine West Marine
> marketing a twenty-five dollar tin of baby bum ointment as  the latest, high
> tech anti-fouling agent for props.
> >
> > mel
> > hull # 452 - renamed Sadhu
> >
> > PS my four babies' bottoms all benefited from Penaten to control diaper
> rash - 'course, that was in the days before disposable diapers ;)
> >
> >
> > Message: 1
> > Date: Sun, 20 Mar 2011 22:19:16 -0700
> > From: Debra Fontaine <debrafontaine at live.com>
> > To: public-list at lists.alberg30.org
> > Subject: [Public-List] painting prop
> > Message-ID: <BLU0-SMTP8585761F2CBA76C5334E9CC3B50 at phx.gbl>
> > Content-Type: text/plain; charset="us-ascii"
> >
> > The fishermen in the boat yard I was in put penaten on their prop. Its
> diaper cream and they claim that putting it on their propellers stops stuff
> from sticking to it. I don't know. Another guy in the boatyard put shoe
> polish on his. I put shoe polish on mine last year I will find out how well
> it worked when I see the bottom in April Number 155 La Plaoma
> >
> >
> >
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