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Old 04-06-2013, 09:43 AM   #1
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Bottom job

Well it's been a year since I purchased the Blue Heron and she came with some blisters. The bottom paint probably has never been scraped or sanded so when we pulled I decided to have the bottom soda blasted and etched.
Here are some pics.
Took one entire day to get one side if the hull done. Some small Knicks in the glass most of the blisters appeared to be paint in paint. Moisture readings are next.

Decided after much research to blast and barrier cost and repaint. All appears to be cosmetic.



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Old 04-06-2013, 01:09 PM   #2
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Bringing back memories. We did the same a couple of years ago. We primed after stripping with Interlux 2000 and used VC17 antifoul 58.
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Old 04-06-2013, 01:28 PM   #3
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Doing the same thing right now. Not by blasting but with a scraper and sander in cold, dark and snowy conditions. So I feel the pain..
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Old 04-09-2013, 12:35 PM   #4
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Gonna go with two coats of Sea Hawk Tuff Stuff for barrier coat.
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Old 04-09-2013, 01:38 PM   #5
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Good to hear everything is looking sound...was very distressing being able to rip multiple layers of glass and roving off by hand!

Feels even better once she's all purtied up and back in the water for a decade or more and blisters are a distant memory...
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Old 04-09-2013, 08:22 PM   #6
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Concur.
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Old 04-15-2013, 10:58 AM   #7
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Barrier coat is applied. Decided to go with an ablative this time around instead of a hard paint.

Small Blisters popped and ground out. Hopefully splash this week.
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Old 04-15-2013, 11:06 AM   #8
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Ocean Breeze,

What the heck is VC17 antifoul 58???

Looks like a sailboat racing paint.
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Old 04-16-2013, 08:15 AM   #9
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After peeling and post-curing my hull with the Hotvac system, here is what we put back on:

3 sessions of 1.5 oz. fiberglass mat with vinylester resin
2 coats Interprotect 1000 - High build epoxy primer
2 coats Interprotect 2000 - 2 part epoxy barrier coat
1 heavy sweep Interprotect VC tar2 - Watertight 2 part epoxy putty
3 coats Interprotect 2000 - 2 part epoxy barrier coat
2 coats antifouling - Petit Trinidad SR (4 gallons).


That was about 10 years ago and not a single blister since.
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Old 04-16-2013, 09:11 AM   #10
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Keith -

Excellent detailed description. Thank you for that posting.

We got regular paint last haul out and are blister free for the moment, but looking ahead to the full treatment eventually.
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Old 04-16-2013, 09:14 PM   #11
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My new bottom
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Old 04-17-2013, 07:15 PM   #12
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Launched. Back at slip. 4200 after all said and done.
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Old 04-17-2013, 08:43 PM   #13
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Quote:
Originally Posted by Blue Heron View Post

My new bottom
If you don't mind me saying so, that is one pretty bottom
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Old 04-17-2013, 09:11 PM   #14
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Thanks Ben. Running the WW2 colors
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Old 04-17-2013, 10:04 PM   #15
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Quote:
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Ocean Breeze,

What the heck is VC17 antifoul 58???

Looks like a sailboat racing paint.
Ya Eric, it is used on Sailboats for a frictionless surface. There wasn't a blemish once completed. The suggestion to use this came from a Sailboat racing captain and it worked out really well. Here.
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