[Alberg30] A 30 eng

[John Birch]

VC 17 is a terrific paint - in fresh water - probably the best. In salt it
will be largely ineffective against barnacles. VC Offshore is not like VC
17, the paint becomes ineffective if hauled out for more than 60 days like
traditional paints. It is not (VC Offshore) rated very highly by Practical
Sailor for longevity. I would suggest Pettit's Unepoxy Plus or some of the
other hard paints as they are scrapable after growth starts, usually in the
2nd or 3rd year. They will give you with proper attention to a smooth finish
the closest performance to VC 17 ( but not quite as fast - I was astounded
how much faster my A-30 was when we converted her to VC-17 ( racing in light
air). It's the Teflon - but there is only 17% copper in it.

The other problem with VC 17 is if you convert to a paint for salt water you
have to get every bit of the VC off as the Teflon in the paint will cause
adhesion problems. That means a lot of acetone - an awful lot and tons of
rags or cloths.

The ablatatives are also an option though they won't give you as good a
speed edge as you enjoyed with VC 17. Also ablatives because of the
sloughing nature of the paint leave their chemicals on the ocean floor. I
suspect they will be the next to be banned.

When we go South, my preference will be for the highest performing hard
paint - with greatest longevity. At least with hard paints one can control
to a large degree where the paint goes when sanding it on the hard using
vacuum attachments on the sander.

All of this is of course my own personal bias and I'm sure there are as many
opinions on the matter as their are boat names.

Best regards,

John

----- Original Message ----- 
From: "Richard Mair" <r.mair at sympatico.ca>
To: "Alberg 30 public list" <public-list at alberg30.org>
Sent: Wednesday, October 08, 2003 12:09 AM
Subject: Re: [Alberg30] A 30 eng


> I can wait. Our  boat comes out Nov 2 and I start taking off the
bottomcoat.
>
> I should have mentioned that in a couple years I will be in salt water.
What
> kind of tempreture do you need for the awlgrip and can I use vc 17 on it?
>
> "sousa, stephen (ENG)" wrote:
>
> > Richard,
> >
> > I used Interportect 2000 on one boat and Awlgrip Barrier Coat on the
Alberg.
> > The Awlgrip is easier to work. Application instructions by Awlgrip is
apply
> > 3 coats with a roller
> > 12 mils thick and before it cures apply at least one coat of bottom
paint.
> > The paint bonds to the coating and increases the life of ablative bottom
> > paint.
> >
> > If you are not in a hurry, the boat will be coming out for winter
storage in
> > a few weeks at which time an update can be provided on the bonding
> > properties. This is the first year with the coating and Awlgrip paint.
> >
> > Stephen
> > #114
> >
> > -----Original Message-----
> > From: Richard Mair [mailto:r.mair at sympatico.ca]
> > Sent: Monday, October 06, 2003 10:45 PM
> > To: public-list at alberg30.org
> > Subject: [Alberg30] A 30 eng
> >
> > As an Alberg 30 owner of less than one year I will start with only 2
> > Questions. Is anyone running in salt without a heat exchanger and what
kind
> > of life could I expect from the engine before rust takes over.
> >
> > Anyone know the advantages of VC tar over interprotect 2000. Seems like
VC
> > tar is easier to work with.
> >
> > Maybe that's 3 Questions.  Thanks.
> >
> > Have picked up some good tips just reading other Questions and answers.
> > Richard 609 Into the Blue
> >
> >  +---------------------------------------------------------------+
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 |                This Old Boat by Don Casey                     |
 | http://www.amazon.com/exec/obidos/ASIN/0071579931/alberg30-20 |
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