Input on gelcoat problem

Discussion in 'Materials' started by mrdebian, Nov 29, 2021.

  1. mrdebian
    Joined: Apr 2021
    Posts: 37
    Likes: 4, Points: 8
    Location: Greece

    mrdebian Junior Member

    I will appreciate if anyone can let me know why this part of the kayak deck came out with the problem as seen in the image.
    There are 19 fittings like the one in the picture and only on this one there is a problem but I've seen the same in the past in a couple of others.
    The temperature inside my workshop when I spray it was 15-17oC and I used 2.5% catalyst.
    The gelcoat however was relatively old (5 months).
    Any input is very much appreciated.

    Thanks
     

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  2. ondarvr
    Joined: Dec 2005
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    Location: Monroe WA

    ondarvr Senior Member

    The gel coat is thin in that spot, it's not uncommon.
     
    KD8NPB and fallguy like this.
  3. mrdebian
    Joined: Apr 2021
    Posts: 37
    Likes: 4, Points: 8
    Location: Greece

    mrdebian Junior Member

    Thank you @ondarvr ,I will be more careful next time!
     
  4. mrdebian
    Joined: Apr 2021
    Posts: 37
    Likes: 4, Points: 8
    Location: Greece

    mrdebian Junior Member

    @ondarvr any tips how to repair that part easier? The problem is that due to been very little gelcoat on either side of the problem if I start sanding it will rip off the "good one" as well.
    It happened in another one deck that I had the same problem.
     
  5. gonzo
    Joined: Aug 2002
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    Location: Milwaukee, WI

    gonzo Senior Member

    You can apply more gelcoat, sand and polish. No one will ever notice.
     
  6. Barry
    Joined: Mar 2002
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    Barry Senior Member

    Do you have a drier on your air line?
     
  7. mrdebian
    Joined: Apr 2021
    Posts: 37
    Likes: 4, Points: 8
    Location: Greece

    mrdebian Junior Member

    Barry, I don’t understand what you want to say
     
  8. Barry
    Joined: Mar 2002
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    Barry Senior Member

    If you are spraying it you need to ensure that no water comes out of the gun. So is there a drier in the line? If not, you can get the odd water droplet and even occasionally, depending on the type of compressor, some oil can get into the line and ruin the finish
     
  9. mrdebian
    Joined: Apr 2021
    Posts: 37
    Likes: 4, Points: 8
    Location: Greece

    mrdebian Junior Member

    Yes there is a drier.
    My question is about the repair now actually.
    I am spraying more carefully now and didn’t had the same problem but I got already a couple of decks that they had the problem like the picture above that need repair.
     

  10. Blueknarr
    Joined: Aug 2017
    Posts: 1,262
    Likes: 301, Points: 83
    Location: Colorado

    Blueknarr Senior Member

    That is a tuff spot.
    Fill with thick gelcoat.
    Slice off the excess when it has almost set.
    Spray with gelcoat.
    Polish
     
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