[C320-list] Hull prep

[Jon Vez]

Allan,

Your comment regarding commissioning hassles caught my attention! This was actually a consideration for me as well. Although we did end up moving up, the dread of going through this process gave me pause. It's not like a car dealership where you can 'shop around'; most dealers have a monopoly on the local market.
When I went into the negotiating process, I insisted they put in writing that they would be responsible for the specific issue of bottom paint not adhering. They did and I also learned why this was such a prominent issue for Catalina's in general, not just the 320.
When the factory started using Vinylester exclusively, they instructed dealers to only Dewax and not to scuff or sand a new bottom as there was concern that this would degrade the Vinylester properties. This turned out to be bad advice and hence the problem with proper adhesion.
My new boat has had no problems with this thankfully. Interestingly enough, they Soda Blasted my 320 when they took it in trade.
One other note on this for us Northerners who tend to haul every year and apply a yearly coat of Ablative. If you talk with the technical folks at the larger paint manufacturers, they will tell you that a big problem is that seasonal painting over a bottom that is still showing the previous seasons paint causes flaking because of the weight of the copper in the paint. A holdover from the days of hard paint is to slap a coat on every Spring (guilty as charged). 

Regards,
Jon Vez
C355 #17

Sent from my iPad

> On Mar 30, 2014, at 10:05 PM, "Allan S Field" <allan.field at verizon.net> wrote:
> 
> David - Yeah, I bought mine new in Annapolis.  I had the boat peeled down
> about 6-7 years ago by a "pro" who then neglected to de-wax so the problem
> continues to this day.  So it's time to bite an even bigger bullet this time
> around!  The issue with the hull is the main reason that we have resisted
> any thoughts of moving up as while it would be to another Catalina, it just
> isn't worth the commissioning hassles, or lack thereof!  - Allan
> 
> -----Original Message-----
> From: c320-list-bounces at lists.catalina320.com
> [mailto:c320-list-bounces at lists.catalina320.com] On Behalf Of dprudden
> Sent: Sunday, March 30, 2014 9:26 PM
> To: C320-List at Catalina320.com
> Subject: Re: [C320-list] Hull prep
> 
> Allan,
> I believe I had the same problem (I bought the boat used in Edgewater,
> MD.....same original dealer as you perhaps??), The bottom paint on the hull
> peeled off in many places, so I soda blasted to start clean after bringing
> her up. 
> 
> David Prudden
> #787
> 
> Sent from my iPhone
> 
>>> On Mar 30, 2014, at 9:20 PM, "Allan S Field" <allan.field at verizon.net>
>> wrote:
>> 
>> Just curious as to why you feel the need to soda blast down to the 
>> hull.  My understanding is that Micron 66 is a multi-season paint that 
>> can be stored, launched, re-stored, and re-launched without 
>> limitation.  Interlux recommends one color of paint as the first coat 
>> then another color for the next and subsequent coats (I do 3 every 2 
>> years).  When you see the first coat, that's the time to repaint.  The 
>> Interlux website has quite a bit of product info that probably would be
> beneficial to review in detail.
>> 
>> That said, I am having mine soda blasted this summer only because when 
>> the boat was originally commissioned, the boat wasn't mold de-waxed.  
>> I have never been able to get paint to stick so am starting all over 
>> again.  And no, the dealer would not stand behind his failure to take 
>> responsibility for the actions of his subcontractor.
>> 
>> Allan S. Field
>> Sea Shadow - #808
>> Columbia, MD
>> 
>> -----Original Message-----
>> From: c320-list-bounces at lists.catalina320.com
>> [mailto:c320-list-bounces at lists.catalina320.com] On Behalf Of Peter 
>> Sheerin
>> Sent: Sunday, March 30, 2014 6:43 PM
>> To: C320-List at Catalina320.com
>> Subject: [C320-list] Hull prep
>> 
>> We are about to prep our hull for anti fouling. We always use 
>> International Micron 66. We find in our location (saltwater), that we 
>> get about 2 - 3 years. We intend prior to our next application to take 
>> all paint off, back to the gel coat. We have been advised that this 
>> can be done by either sand blasting or soda blasting. Does anyone have 
>> any experience with either method? We have heard pros and cons for 
>> both. Peter Jaraman1096
>> 
>> Sent from my iPad
>