[C320-list] FW: bottom paint

[Koen Bennebroek]

Wow, lots of good info here. Thanks Karl for the detailed explanation of the
difference between the paints! From that it actually sounds like the
Interlux is not a bad idea for our application. The boat is in the water now
and will (hopefully) stay in there until 2 years from now, so in that
respect, the Pettit would have worked just fine. But we are frequent users,
on average once every 2 weekends, more in summer than in winter. We had 2
coats applied.

Thanks everybody for replying.

-Koen

On 11/7/06, Peter Clancy <SAILORPETE at msn.com> wrote:
>
> Observation ......... I've used Petit Trinidad for at least 15 years in
> South Florida. I do my own painting and bottom cleaning, so I visually track
> its effectiveness and rate of wear. I've always gotten at least two years
> service from a 3-coat application. I've more recently used the SR version,
> which costs more. In my opinion, SR is just marginally effective in
> controlling slime and then only for a few months. On balance, it's not worth
> the extra money and I plan to go back to standard Petit Trinidad in the
> future.
>
>
> Peter Clancy
> AROBAN  c320  #222
> Miami, FL
>
>
>
>
>
>
>
> ----- Original Message -----
> From: Karl Mielenhausen _/) <mailto:kmielen at iwon.com>
> To: C320-List at catalina320.com<mailto:C320-List at catalina320.com>
> Sent: Tuesday, November 07, 2006 1:33 PM
> Subject: [C320-list] FW: bottom paint
>
>
>
> Koen,
>
>
>
> These are 2 very different types of paint.
>
>
>
> Pettit's Trinidad SR is a modified epoxy containing 70% cuprous oxide plus
> Ingarol, an anti-slime additive. Modified epoxies release biocide over the
> course of the season. Toward the end of the coating's useful life, the
> biocide must migrate further to the surface, adversly affecting its
> effectiveness. This effect can be offset somewhat by periodic scrubbing.
> These coatings to do not wear away like ablatives, so they will build up
> over time. The boat also needs to be launched soon after painting, and stay
> in the water, so this is not the paint for trailer sailors.
>
>
>
> Interlux's Micron CSC is a copolymer (type of ablative), containing 37%
> cuprous oxide but no Ingerol (that would be Micron Extra). Ablatives release
> biocide as the boat moves through the water, so frequent boat use throughout
> the "growing" season is critical. Divers should use a sponge, not an
> abrasive pad, when cleaning a hull painted with ablative paint. Extra coats
> on leading edges are a good idea. Many owners alternate colors so they can
> better see when the fresh coat has been worn away. Copolymer ablatives can
> provide multiseason protection as their effectiveness is not lost when
> drying out.
>
>
>
> So, in answering your question, there are many factors to consider, such
> as where you are located, how often you use the boat, and are you hauling
> for the winter.
>
>
>
> If you are not going to re-launch until the spring, the yard did you a
> favor by NOT using the SR.
>
>
>
> Note: Most of this info came from the Spring 2006 issue of BoatWorks, what
> I have found to be a very useful publication.
>
>
>
> Karl Mielenhausen
>
> 2000 C320 Hull#690 "Silver Lining"
>
> New Bern, NC
>
> http://pages.suddenlink.net/kmielen/<http://pages.suddenlink.net/kmielen/>
>
> From: Koen Bennebroek [mailto: koen.bennebroek at gmail.com<mailto:
> koen.bennebroek at gmail.com>]
>
> To: c320-list at catalina320.com<mailto:c320-list at catalina320.com>
>
> Date: Tue, 7 Nov 2006 08:54:43 -0800
>
> Subject: [C320-list] bottom paint
>
>
>
> We had Big Cat hauled and bottom painted this past week. I had
> agreed<br>with the yard to use Pettit SR as I had heard good things about
> it. On<br>the bill they indicate that they used Interlux Micron CSC
> instead.<br><br>I have not spoken to the yard about this yet (and have not
> paid them<br>yet), but initial checks on westmarine show that this is a
> cheaper<br>paint. I was wondering what people's experiences are with this
> paint?<br>Should I expect it to perform as well or not?<br><br>Thanks for
> any advice!<br><br>-Koen<br><br>
>
> _______________________________________________
>
>
>
>