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  1. #1
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    Liquid Nails Used In Lamination ?

    I'm still working on the tear-down of my recent Glastron GT150 picked-up 2 weeks ago. I've found what I believe is "Liquid Nails" construction adhesive. It had this brown, non-hardened, rubbery type stuff everywhere. The previous restore had used it to bed all of the plywood and joints. There was little strength and the plywood could be pulled easily by hand. They had used cheap wood deck screws to attach the cross pieces to the stringers and the plywood to those same stringers - all were rusted and none found to be sealed with 3M 5200 or any other sealer. In fact, there was not one sign of 5200 being used in the entire build.

    This adhesive material had no value. It wasn't holding anything together and was in the process of breaking down from what I believe was a restore in 2014/2015. Wrong material. Wrong job.

    Click image for larger version. 

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    Last edited by Gordon02; 09-12-2019 at 05:36 AM. Reason: Better Photo Added

  2. #2
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    More photos....


    Click image for larger version. 

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  3. #3
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    Liquid nails would had been a tanish color and hard as a rock

  4. #4
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    Actually liquid nails remains flexible and it will stain..
    But whatever it is wrong application definitely.
    Last edited by mrichartz; 09-12-2019 at 08:15 PM.
    '84 Checkmate Convincor
    Twin v6 closed deck Evinrude loopers
    Heavily ported,2.7 heads,cooling mods
    milled finger ported to match vertex pistons,
    All casting slag removed
    Sleeves in opposite so no idle reliefs
    drilled/relieved exh, lower and mid,
    148 psi comp,balanced pistons and rods, Holley red,Stuffed,77d jets 106 pullovers
    CDI 8500 digital ignitions ..Boyesen reeds..And more....

  5. #5
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    Quote Originally Posted by mrichartz View Post
    Actually liquid nails remains flexible and it will stain..
    But still wrong application definitely.
    Gotta disagree. I've used liquid nails over 15yrs in const and every time I gotta get it off sumthin its bout impossible and hard as a rock. Not sure if u was using something little diff?

    See I did hardwood and if we got some on a tread (step) it had to come off cause it wont stain and stands out like sore thumb. Did floors for 20 yrs
    Last edited by Merc 2.5; 09-12-2019 at 06:40 PM.

  6. #6
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    Yea I was a contractor for 41 years..
    And yes getting it off is ridiculous if used right..
    I was just saying it stays flexible...wasn't saying right or wrong
    And really doesn't matter even if it is it's definitely not supposed to be used there...
    Click image for larger version. 

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    Last edited by mrichartz; 09-12-2019 at 06:48 PM.
    '84 Checkmate Convincor
    Twin v6 closed deck Evinrude loopers
    Heavily ported,2.7 heads,cooling mods
    milled finger ported to match vertex pistons,
    All casting slag removed
    Sleeves in opposite so no idle reliefs
    drilled/relieved exh, lower and mid,
    148 psi comp,balanced pistons and rods, Holley red,Stuffed,77d jets 106 pullovers
    CDI 8500 digital ignitions ..Boyesen reeds..And more....

  7. #7
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    Quote Originally Posted by mrichartz View Post
    Yea I was a contractor for 41 years..
    And yes getting it off is ridiculous if used right..
    I was just saying it stays flexible...wasn't saying right or wrong
    And really doesn't matter even if it is it's definitely not supposed to be used there...
    No ur correct. It does say flexible but I dont see where hell they get flexible haha. just seemed hard as crap to me and water resistant so I wouldnt think it would turn to mush

  8. #8
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    Yea I guess how flexible...
    Its most likely another construction adhesive anyway if it turned to crap..
    I know some if they are wet and or freeze before they cure turn to crap..
    Last edited by mrichartz; 09-12-2019 at 06:57 PM.
    '84 Checkmate Convincor
    Twin v6 closed deck Evinrude loopers
    Heavily ported,2.7 heads,cooling mods
    milled finger ported to match vertex pistons,
    All casting slag removed
    Sleeves in opposite so no idle reliefs
    drilled/relieved exh, lower and mid,
    148 psi comp,balanced pistons and rods, Holley red,Stuffed,77d jets 106 pullovers
    CDI 8500 digital ignitions ..Boyesen reeds..And more....

  9. #9
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    Damn they couldn't even use exterior screws. Lol
    Post plenty of pics Gordon!
    '84 Checkmate Convincor
    Twin v6 closed deck Evinrude loopers
    Heavily ported,2.7 heads,cooling mods
    milled finger ported to match vertex pistons,
    All casting slag removed
    Sleeves in opposite so no idle reliefs
    drilled/relieved exh, lower and mid,
    148 psi comp,balanced pistons and rods, Holley red,Stuffed,77d jets 106 pullovers
    CDI 8500 digital ignitions ..Boyesen reeds..And more....

  10. #10
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    Quote Originally Posted by mrichartz View Post
    Damn they couldn't even use exterior screws. Lol
    Post plenty of pics Gordon!
    I'm a Contractor. A real Contractor, not a guy with a truck and a toolbox that won't stay shut. I hate Liquid Nails. Why? Because it works so good.

    I have to qualify this... NOW there are several grades of LN but the original formula was an extremely good adhesive. Extremely. Still is. And as far as I know completely water resistant.

    Lord knows I have removed enough of it. Usually taking the substrate too.
    .

    I've bought and sold 22 boats in 26 years. I fix them up and then get bored and look for another. It's a hobby.

    Now running a Liberator 21 with a 300xs


    .

  11. #11
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    Quote Originally Posted by TraceF3 View Post
    I'm a Contractor. A real Contractor, not a guy with a truck and a toolbox that won't stay shut. I hate Liquid Nails. Why? Because it works so good.

    I have to qualify this... NOW there are several grades of LN but the original formula was an extremely good adhesive. Extremely. Still is. And as far as I know completely water resistant.

    Lord knows I have removed enough of it. Usually taking the substrate too.
    Not sure where this went off the rails but..no one said it wasn't a really good adhesive...just saying it remained flexible And that it was probably another construction adhesive(seeing as it was all mush I know there are some that if they frezze or get wet before they cure turn to crap.....but even if it was liquid nails not the right application/place to use it..
    '84 Checkmate Convincor
    Twin v6 closed deck Evinrude loopers
    Heavily ported,2.7 heads,cooling mods
    milled finger ported to match vertex pistons,
    All casting slag removed
    Sleeves in opposite so no idle reliefs
    drilled/relieved exh, lower and mid,
    148 psi comp,balanced pistons and rods, Holley red,Stuffed,77d jets 106 pullovers
    CDI 8500 digital ignitions ..Boyesen reeds..And more....

  12. #12
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    Quote Originally Posted by mrichartz View Post
    Not sure where this went off the rails but..no one said it wasn't a really good adhesive...just saying it remained flexible And that it was probably another construction adhesive(seeing as it was all mush I know there are some that if they frezze or get wet before they cure turn to crap.....but even if it was liquid nails not the right application/place to use it..

    I guess "off the rails" is subjective.

    I'm adding information to the thread for the OP
    .

    I've bought and sold 22 boats in 26 years. I fix them up and then get bored and look for another. It's a hobby.

    Now running a Liberator 21 with a 300xs


    .

  13. #13
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    Guys, I've used Liquid Nails only a few times and am certainly no expert with it's identification or application. What I pulled apart in the floor of this boat is brown and does look like what I remember coming out of my caulking gun when building my shop. Here are some more photos showing where this "brown stuff" was used. I pulled the wooden cross braces out of the rotted wood and from the construction adhesive by hand. No hammer, no crowbar, just grab and pull up. Perhaps this adhesive was not meant for wet environments? Have a look for yourself below where I've circled the brown stuff. Gordon

    Click image for larger version. 

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    Last edited by Gordon02; 09-12-2019 at 08:02 PM.

  14. #14
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    Quote Originally Posted by TraceF3 View Post
    I guess "off the rails" is subjective.

    I'm adding information to the thread for the OP
    Oh long day, tired read it wrong...lol
    '84 Checkmate Convincor
    Twin v6 closed deck Evinrude loopers
    Heavily ported,2.7 heads,cooling mods
    milled finger ported to match vertex pistons,
    All casting slag removed
    Sleeves in opposite so no idle reliefs
    drilled/relieved exh, lower and mid,
    148 psi comp,balanced pistons and rods, Holley red,Stuffed,77d jets 106 pullovers
    CDI 8500 digital ignitions ..Boyesen reeds..And more....

  15. #15
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    This looks to me like a hull that was submerged awhile. The encapsulated wood seems to be intact but the joints are compromised.
    .

    I've bought and sold 22 boats in 26 years. I fix them up and then get bored and look for another. It's a hobby.

    Now running a Liberator 21 with a 300xs


    .

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