Yards or companies that do barrier coating in Annapolis area? - Page 2 - SailNet Community
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post #11 of 36 Old 03-30-2009
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LOL... missed that... I'd be interested in seeing photos. Sodablasting is definitely the way to go if you're going to do this yourself. I wrote a good post on applying Interprotect 2000E previously:

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Alternating the colors helps a lot with determining where you've painted, but it is also very useful for helping you coat the areas around the boat stands. For instance:

The first layer is gray, since the gelcoat is white, and you can paint right up to the boat stand pads. Then you paint a layer of white, and leave about a two-inch margin of gray paint around the pads... then paint a layer a gray and leave a four-inch margin around the pads or about two-inches of white and two inches of gray showing...and then finish with a layer of white—with a six-inch margin around the pads—with two inches of gray, two inches of white and two inches of gray.

Then when you move the boat stands, you can fill in the pads and layer the paint accordingly... adding gray to cover the white square left by the pad.. then white to cover the gray square, and so on.

Also, by alternating colors, you can see if someone has sanded through the barrier coat when you're prepping the boat for re-painting. If there's an area that is gray or grayish, they've sanded through at least the outermost layer of barrier coat. If you had all white, you wouldn't be able to tell if they had sanded down through the barrier coat as easily—if you had all gray, you could tell they sanded through the barrier coat...but not if they've sanded into it...

I hope this helps clear things up a bit.

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post #12 of 36 Old 03-30-2009
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Brak,

I have heard good things about Osprey, you may also try Osmotec in Annapolis and Steve's Yacht repair, also in Annapolis. I researched this topic extensively a few years ago, and decided to try my hand at it first before I dropped $12,000 So far so good.

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post #13 of 36 Old 03-30-2009 Thread Starter
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Thanks guys!

I am leaning towards hiring soda-blasting company to clean up the bottom, and then doing the actual painting myself. That way I would get the hard stuff outsourced to someone with proper tools, and get to paint the bottom the way I like (and, presumably, save a bit of cash too). Of course that means I am not getting to sail for a while longer, thats ok for a good cause though.
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post #14 of 36 Old 03-30-2009
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Keep in mind that you will be doing A LOT of sanding after the soda blasting...A LOT.

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post #15 of 36 Old 03-30-2009
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Not if it is done properly. When I had the three hulls on my boat sodablasted, I had about 95%+ of the actually bottom paint removed down to the gelcoat.
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Keep in mind that you will be doing A LOT of sanding after the soda blasting...A LOT.

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post #16 of 36 Old 03-30-2009
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Um...that leaves about 5%, of which there should be 0% Do you have some pictures of that Dog?

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post #17 of 36 Old 03-30-2009 Thread Starter
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Quote:
Originally Posted by T37Chef View Post
Keep in mind that you will be doing A LOT of sanding after the soda blasting...A LOT.
They promised to get pretty much all the paint except for "narrow strip under bootstripe".

I am sure it will be a lot more sanding or scraping if I don't get those guys to do it I'll just hope for the best and keep my can of Interstrip 299 handy.
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I don't have photos of it, but the majority of that <5% was the area around the waterline... and I do have three waterlines to deal with... If it were a monohull, it would have been significantly less to deal with, since there'd be far less water line to deal with.

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Um...that leaves about 5%, of which there should be 0% Do you have some pictures of that Dog?

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post #19 of 36 Old 03-31-2009
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[QUOTE]
Quote:
Originally Posted by Maine Sail View Post
6)

I would advise your first coat of paint being a high quality copolymer ablative, of the same brand paint as the barrier coat used, Micron Extra or Micron 66 are great choices if using Interprotect 2000E, as many yards do. This first coat of paint can also be of a differing color than your final coat so you know when you need to re-paint. If this is all done properly you will most likely never see chunks of bottom paint flaking off your hull again..
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I'm curious why you advise using an ablative first???
I am getting ready to apply the Interprotect 2000E. I just ordered a gallon of the Interlux bottomkote epoxy in black for my first coat - of course, it is a hard paint. My plan was to next apply two more coats of the Micron Extra (ablative).

Last edited by harbin2; 03-31-2009 at 02:13 PM.
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post #20 of 36 Old 03-31-2009
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I'm curious too. On mine, the barrier coat is followed by a coat of hard paint that's black. The following ablative coats are red. When I see black showing through, I know it's time to re-paint. Sometimes, I just touch up the spots where it's worn through to the black paint.
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