Sea Sled madness. It’s in my brain.

Discussion in 'Fiberglass and Composite Boat Building' started by DogCavalry, Nov 11, 2019.

  1. fallguy
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    fallguy Senior Member

    Many paints for boats are made to be incredibly hard. Translation is hard to remove later.

    Latex paints seem to allow some ingress.

    Antifouling paint might be a pain to sand; not sure, but you don't want antifoul under any nice paint.

    I'm going to cast a vote for Interlux 2000e. It is only a primer, but it goes on like gold. Kinda pricey, but by far my favorite. You can sand and fair right over it with epoxy compounds. You can probably get by with a gallon. I'd recommend 7" rollers. 9" like to do some odd walking thing, but 6" will work; ultra fine..
     
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  2. Barry
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    Barry Senior Member

    https://www.international-yachtpaint.com/s3/documents/Guidance/interprotect-guide.pdf
    Ditto on the 2000e
    Some quick points
    The recommended build up is around 7 - 10 mils, it is in the specs and as such requires several coats. The application if you want to get by without sanding between coats requires multiple coats sometimes with very short cure times between.
    Perhaps even when slightly tack. The application process is above but wanted to just put it in the forefront
    I doubt that a gallon would do all the bottom hull but the coverage rate in the instructions has this tabulated
    Applying the finish coat without sanding may also require the first finish coat going on when tacky
    AkzoNobel, Burnaby and maybe Langley is perhaps a chance to buy this a little cheaper than a marina store
    They will have a thickness gauge, the size a bit larger than a credit card that has a graduated set of indents along one side. You apply what you think is correct and then touch the edge of the card against the wet surface and the
    say the indents are from 1 to 60 mils inset and your wet coating thickness 4 mils, the 1 through 4 mils will contact the indents. Pretty simple. After a couple of coats, you will get a good feel with the thickness.
    We used MicronCSC ablative for the antifouling. This was several years ago so may have something better. I cannot remember the final coat but they did have a brushable, rollerable product that was a little better for a DIYer, ie apply by roller
    and feather it out with a soft brush.
    upload_2022-1-12_22-56-32.png
     
    Last edited: Jan 13, 2022
  3. DogCavalry
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    DogCavalry Senior Member

    Thanks, guys.
     
  4. fallguy
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    fallguy Senior Member

    @Barry

    It goes without saying I have great respect for your contributions to this forum; if I sound argumentative; forgive me.

    keep in mind John's boat is already epoxy and he may be doing this as a temp coating...the barrier coat instructions for 2000e assume esters...John has little time for many overcoats and finishing to perfection he says

    On my boat, I put two coats of the stuff on and it looks incredible. I see little reason to keep adding more and more to it. If someone can give me sound reasons; go for it.

    When I applied it, only used a roller, being careful to use the feather edge of the roller back to the already applied paint and never the frame side. It laid down like a dream. If I ever buy more epoxy primer; it'll be the only one.

    When he gets the boat to a new home; he can sand the light coats off or key to them with 120grit, fair some more and restart the primer coats.
     
  5. DogCavalry
    Joined: Sep 2019
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    DogCavalry Senior Member

    20220122_173919.jpg 20220122_173732.jpg 20220122_173945.jpg 20220122_174017.jpg IMG-20220122-WA0000.jpeg
    DeWalt diesel heater. Sure throws out some heat, but occasionally doesn't start. Then it throws out a big cloud of diesel smoke. Fills the tent and burns the eyes.

    So, pictures are hazy from smoke.

    First ⅓ of port side, 1st coat of @fallguy's granny's secret recipe.
    Front and back slider have lexan
     
    Last edited: Jan 22, 2022
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  6. Ad Hoc
    Joined: Oct 2008
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    Location: Japan

    Ad Hoc Naval Architect

    Can't beat a bit of secret home brew! :D

    Rock 'n roll and brew, rock 'n roll and brew
    They don't mean a thing when I compare 'em next my sea-sledge
    Rock 'n roll and brew, rock 'n roll and brew
    I know that you and I oh we got better things to do
    I don't know who you are or what you do, or where you go when you're not around
    I don't know anything about you baby, but you're everything I'm dreaming of
    I don't know who you are, but you're a real dead ringer for my sea-sledge..
    A real dead ringer for my sea-sledge..

    RIP Meat
     
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  7. fallguy
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    fallguy Senior Member

    How u plan to sand that John? It should be sanded on 45s like the bow; I'd say, with about a 24" longboard. You can make one with a nice piece of hardwood same width of the papers. I'd use hook and loop. Then you put furniture legs on for handles; like maybe 6-8"ers. Then you can put velcro on it. You might want to heat the velcro a bit with Annie's hair dryer or even staple the ends. But hook and loop papers are really good. First pass would be maybe 60 grit, but lots depends on how good you are with it. 120 is okay for priming all the way to 180. After you prime; you can move it. It can also be primed imperfect and the primer sanded thru and thru and fair more later when u r away from rainy season.

    I have the fancy flexisander tool. They advised abranet, but it is not as good.

    40 grit cuts faster for a first coat, but scratches are deep if you are just trying to get a rough coat now.
     
  8. DogCavalry
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    DogCavalry Senior Member

    It's a first coat. Pretty damn close, because I'm good, but not final. I'll use a strong light in the dark, spot sand bumps and ridges with the random orbit sander, then etch all with a very light pass. Then coat all again with a much less stiff mix, filling pinholes and nicks. Pole sand all that for tooth for the paint.
     
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  9. DogCavalry
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    DogCavalry Senior Member

    20220129_154226.jpg 20220129_154217.jpg 20220128_115606.jpg
    Well, that's all the way around with Granny's secret recipe.

    And the top of the possible starboard fuel tank.
     
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  10. fallguy
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    fallguy Senior Member

    Status John?
     
  11. DogCavalry
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    DogCavalry Senior Member

    I just got home yesterday. My dad was diagnosed with pancreatic cancer less than a month ago. Palliative care a few days ago. He'll slip away before tomorrow. So I haven't worked much in the last few weeks.
    But I'll be back at her in the next day or two. Work is good for the soul.
     
  12. fallguy
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    fallguy Senior Member

    My Dad died Wednesday John. Buried Saturday. ...
     
  13. DogCavalry
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    DogCavalry Senior Member

    Ah hell. My condolences Dan. That's the age we are.
     
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  14. Ad Hoc
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    Ad Hoc Naval Architect

    My condolences to you and your family Dan... not good news...
     
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  15. bajansailor
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    bajansailor Marine Surveyor

    Warm thoughts to John and Dan from me as well - I think we are all in pretty much the same boat re elderly parents.
    My Dad will be 91 next month and is going down hill now, however saying this, I would not be surprised if he reaches 95 with ease.
     
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