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TORMAC53 November 30th 03 06:03 AM

paint system for metal boat
 
I have a 16 year old metal hull sailboat. The hull is in great shape. However,
the paint system underwater is starting to fail. There are blisters forming
between the fairing compound and the epoxy coating that is on the hull.
I have the time to have the hull sandblasted and painted properly,including
refairing the hull. I would like some of the builders here to tell me how they
finnished off thier hulls. Most yards around here handle fiberglass and don't
know where to start on a steel hull.
Please be specific with what paint system and what coatings you used and how it
did. I would like to get 16 more years out of this job.
Bob Glennon

Steve November 30th 03 07:16 AM

paint system for metal boat
 
I don't have a steel hull boat but have worked in ship and boat yard.

You are correct about the knowledge and abilities of most boat yards. I
recommend that you find a boat yard that works primarily with commercial
vessels but can handle a pleasure boat..

You don't mention what region you are in.. My experience has been on the
west coast and So. Calif. If your in that region I could recomend a good
yard and a paint system..

The boat yard I recommend is South Bay Boat Yard in San Diego and my
preference is with Pro Line paint systems and especially the technical
support of their commercial sales staff.. If you get a yard that is willing
to work with you and the Pro Line paint system, your problem is solved..

The yard will arrange for the sandblasting to be done by a experienced sub
contractor.. The paint vendor will specify the surface condition,
humidity/temp. conditions, etc. While the paint is being applied, they may
even check the mil thickness between coats.. The paint vendor and the yard
applying it have a vested interest in seeing to it that all is done
properly..

You may find that the yard has a different perference on the paint brand.
Just make sure that you will be getting this type of 'hands on' technical
support and above all a guarantee on the final work..

Good luck.

Steve
s/v Good Intentions



Julian November 30th 03 08:35 PM

paint system for metal boat
 
"TORMAC53" wrote in message ...
I have a 16 year old metal hull sailboat. The hull is in great shape. However,
the paint system underwater is starting to fail. There are blisters forming
between the fairing compound and the epoxy coating that is on the hull.
I have the time to have the hull sandblasted and painted properly,including
refairing the hull. I would like some of the builders here to tell me how they
finnished off thier hulls. Most yards around here handle fiberglass and don't
know where to start on a steel hull.
Please be specific with what paint system and what coatings you used and how it
did. I would like to get 16 more years out of this job.
Bob Glennon


Try posting on the forums he http://www.metalboatsociety.com
They have a forum specifically for "Paints and Coatings".

- Julian



Brian Whatcott November 30th 03 11:44 PM

paint system for metal boat
 
On 30 Nov 2003 06:03:04 GMT, (TORMAC53) wrote:

I have a 16 year old metal hull sailboat. The hull is in great shape. However,
the paint system underwater is starting to fail. There are blisters forming
between the fairing compound and the epoxy coating that is on the hull.
I have the time to have the hull sandblasted and painted properly,including
refairing the hull. I would like some of the builders here to tell me how they
finnished off thier hulls. Most yards around here handle fiberglass and don't
know where to start on a steel hull.
Please be specific with what paint system and what coatings you used and how it
did. I would like to get 16 more years out of this job.
Bob Glennon


I took a quick look for the steel hull construction book on my shelf -
but it's still packed. I recall the author was very insistant on the
virtues of sand blast and immmediate zinc spray.
Then if I recall, epoxy primer and compatible top would be the top
quality package.

Brian W

Paul Oman December 1st 03 01:56 AM

paint system for metal boat
 
Julian wrote:

"TORMAC53" wrote in message ...
I have a 16 year old metal hull sailboat. The hull is in great shape. However,
the paint system underwater is starting to fail. There are blisters forming
between the fairing compound and the epoxy coating that is on the hull.
I have the time to have the hull sandblasted and painted properly,including
refairing the hull. I would like some of the builders here to tell me how they
finnished off thier hulls. Most yards around here handle fiberglass and don't
know where to start on a steel hull.
Please be specific with what paint system and what coatings you used and how it
did. I would like to get 16 more years out of this job.
Bob Glennon


Try posting on the forums he http://www.metalboatsociety.com
They have a forum specifically for "Paints and Coatings".

- Julian


Very common is a zinc primer, epoxy middle coat, and urethane topcoat.

complicating the issue is what kind of zinc primer? organic or inorganic? How about a moisture cured
urethane zinc (or aluminum) primer?

contact me directly if anyone wants to discuss these options in greater detail.

thanks
PAUL OMAN



Steve December 1st 03 04:47 AM

paint system for metal boat
 
Although inorganic zinc is a very good metal treatment in steel hulls, it is
never recommended below the waterline.. Mil Spec. ( I don't know which
one).

Steve
s/v Good Intentions



Roar Hansen December 31st 03 01:54 PM

paint system for metal boat
 
Hi, Bob!

I have a 44feet steel boat.
Here's what I do from time to time:

Sandblast the hull,
put on 2-component epoxy primer,
put on 1-component zinc primer,
put on 2 coats of good antifouling

and that's it.

Best;
Steve

"TORMAC53" wrote in message
...
I have a 16 year old metal hull sailboat. The hull is in great shape.

However,
the paint system underwater is starting to fail. There are blisters

forming
between the fairing compound and the epoxy coating that is on the hull.
I have the time to have the hull sandblasted and painted

properly,including
refairing the hull. I would like some of the builders here to tell me how

they
finnished off thier hulls. Most yards around here handle fiberglass and

don't
know where to start on a steel hull.
Please be specific with what paint system and what coatings you used and

how it
did. I would like to get 16 more years out of this job.
Bob Glennon




Skip VerDuin January 29th 04 01:03 AM

paint system for metal boat
 
You might consider joining the Metal Boat Society.
http://www.metalboatsociety.com/
Coatings is a regularly discussed topic.
Back issues will keep you reading for a weekend.

I've used an Ameron system for my preference.

George VerDuin - s/v CIRCE



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