[C320-list] Hull prep

[Allan S Field]

I was quoted $1600-$1700 to soda blast and de-wax the hull with a solvent.
This is on the Chesapeake in August when things will be very slow for them
anyway.

-----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 10:17 PM
To: C320-List at Catalina320.com
Subject: Re: [C320-list] Hull prep

Thanks Alan, International paints rep recommended the sealer epoxy. I'll let
you know how I go. I believe soda blast is best method, although takes
longer and cost is about double as against sand grit blast. The worry with
sand you need an experienced operator, as generates heat and may damage gel
surface if not done correctly.
Total cost in Aus is about $5k not cheap eh!
Peter Jaraman1096

Sent from my iPad

> On 31 Mar 2014, at 11:57 am, "Allan S Field" <allan.field at verizon.net>
wrote:
> 
> OK, you now may want to talk with Catalina.  The hull is layed up with 
> vinylester resin rubrail to rubrail, versus the old polyester resins 
> that blistered.  There was a bad run around the 400 series of about 
> 100 boats of which some had some blistering problems but that is all I 
> am aware of.  Hull
> #1096 is way outside of that range.  Everything I have ever heard from 
> Catalina is that a barrier coat is a waste of money.  The bubbles most 
> likely are in the paint which can be scraped down.  Let me know what 
> you find! - Allan
> 
> -----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 9:46 PM
> To: C320-List at Catalina320.com
> Subject: Re: [C320-list] Hull prep
> 
> Alan, it's about 8 years since new. The layers are looking very 
> patchy, and some minor bubbles have appeared. I believe it is 
> recommended to strip back to gel coat every 10 years to check for osmosis.
> Once stripped and checked, we will apply a coat of epoxy sealer prior 
> to 2 coats of micron 66.
> Peter Jaraman1096
> 
> Sent from my iPad
> 
>>> On 31 Mar 2014, at 11:20 am, "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
>