The AWLGRIP Knowledge challenge

Discussion in 'Fiberglass and Composite Boat Building' started by grady, Dec 31, 2007.

  1. rivadezza
    Joined: Sep 2008
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    Location: Thailand

    rivadezza Junior Member

    I have a boat yard in tahiland and I make 56 foot yachts, or sportcruisers that I paint silver metallic, 3 base and 3 clear, now my painter is gone due to natural causes,,,,,, anybody interesteed t come to Thailand for a month to learn a local to paint with awlgrip paints,,, its not a bad place to stay, I have my yard in Pattaya :)
     
  2. the1much
    Joined: Jul 2007
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    Location: maine

    the1much hippie dreams

    metallic paint on a yacht? ,,,ummm,,,,ewwww ,, sounds like them girlie bass boats hehe ;)
    ive seen Thailand on t.v. lol,,, looks like a beutiful place :D
     
  3. rivadezza
    Joined: Sep 2008
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    Location: Thailand

    rivadezza Junior Member

    actually all the big and expensive have metallic, have a look at
    www.pershingyachts.com
    www.riva-yacht.com

    The last one sells a 40 footer from $1.800.000 plus options, it has nothing else but one cabin and a name on it
     
  4. Kaptin-Jer
    Joined: Mar 2004
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    Kaptin-Jer Semi-Pro

    Sorry guys but I don't agree. Water is not the issue. Awl Grip holds up fine under water. If you got a greasy fingerprint between the primer and top coat the top will not bind. That is the problem. You need to sand the area down - wash watever is on there with acetone. reprime and repaint. Then if that area stays under water it will not matter.
     
  5. TripleCrownNC
    Joined: Apr 2008
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    Location: Apex, NC

    TripleCrownNC Junior Member

    Hey Kapt, well I can tell you I have seen in many places that Awlgrip will not take being in contact with water for several days. I just never figured that the few spots that collect water after a rain while the boat is in storage was going to be trouble. The blisters are exactly where standing water pools up.

    I mentioned one of the areas was right in front of the transom in that little well at the scuppers. I actually ground that whole area down and glassed it back to take care of spider cracks. There should have not been contaminates there.

    No matter the case, I will have to sand, reprime and paint. But it does leave me concerned about other areas that can collect water depending on the slope the trailer is on, etc. Thanks,
     
  6. Jimbo1490
    Joined: Jun 2005
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    Location: Orlando, FL

    Jimbo1490 Senior Member

    Jer,

    The Awl-Grip Application guide lists Awl-Grip polyurethane topcoat as a "Above Waterline" product. That document lists other coatings for below the waterline. My experience with topcoat polyurethanes is that they will fail with prolonged exposure to water. Make a test panel and see for yourself. Paint something and put it in a jar of water for a couple of weeks and see what happens.

    Jimbo
     
  7. Landlubber
    Joined: Jun 2007
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    Landlubber Senior Member

    Do not use any two pack polyurethane for underwater use, it can stand day use but not immersion continuously.
     
  8. Kaptin-Jer
    Joined: Mar 2004
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    Kaptin-Jer Semi-Pro

    You are all correct, but rain water alone should not effect that paint. If it did non of us would be going Thur changes to use Awl Girp. Yes there will be changes if it is underwater for an extended period of time, but a couple of days under rain water should not effect the paint. (do you think Awl grip will hire me? I sound like a company man!!)
     
  9. the1much
    Joined: Jul 2007
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    the1much hippie dreams

    i'll hire ya Kapt. ,, how much work will $6.99 get me? hehe ;)
     
  10. Kaptin-Jer
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    Kaptin-Jer Semi-Pro

    Thats about 5 min. work. I should be able to prime and paint your whole boat.
     
  11. TripleCrownNC
    Joined: Apr 2008
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    Location: Apex, NC

    TripleCrownNC Junior Member

    Kapt, like my first post said, the rain was about 4-5 days back before I went to the boat. Could have been 6 days. The only thing I can think of if this is abbeeeyyy normal is maybe the paint is a little thick in those spots beacuse of the flowing paint. Does not really look like and I have pics of the spots weeks after painting and they looked great.
     
  12. Jimbo1490
    Joined: Jun 2005
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    Location: Orlando, FL

    Jimbo1490 Senior Member

    Even gelcoat, which is usually waterproof, sometimes will get 'osmotic' water blisters. Yes that's abbeeeyyy normal, but it does happen from time to time.

    Jimbo
     
  13. Kaptin-Jer
    Joined: Mar 2004
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    Location: South Florida

    Kaptin-Jer Semi-Pro

    It really shouldn't happen. I have two areas on my cock pit sole that are recessed to catch the water and take it to the scuppers. The indentation is about a 1/4" below the scupper (lousy design) You know the weather we have been having down here. There has been a constant puddle at both scuppers for about 2 months. Aside from discoloration from dirty water the Awl Grip is fine.
    I'll stick with my original theory. Something went wrong between the primer and the top in those spots. It could be any number of reasons. The paint gods are the only ones that know. Stuff happens, sorry guy.
     
  14. grady
    Joined: Oct 2006
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    Location: Scituate, Ma

    grady Novice

    Stars and Stripes

    Hey Much, Jimbo, afrohydro, Landlubber, Jerr and any one I may left out.

    Here's a good one, I think all boats could benefit from a accent color or stripe, has any one ever buried a stripe or graphic under a coat of clear so that the transition would be smooooooooth as a babies bottom?

    If you have please give details.

    I'm sure someone has done this and if it's can be done whats to stop us from wet sanding the color coat, then applying clear (like the car dudes have been doing for years?

    Anyway HELP
     

  15. the1much
    Joined: Jul 2007
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    Location: maine

    the1much hippie dreams

    when you wet sand the top coat,, your taking the "hardness" outta it, why not do the stripe clear it, tape off the stripe, sand to the tape line,, then do the rest of the boat, and clear,, it all should be the same thickness, and if you dont "doodle" you can do the stripe 1 day, and do the top coat within 2 days after,, then you get a good chemical bond too.
     
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