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  1. #1
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    Surfboard repair question

    Surfing yesterday I "blew out" a fin plug. It actually looks like it was crushed into the board about 1/4"- 3/8". The fin now sits at a slightly goofy angle and after my session there was water bubbling out of the fun plug. The glass around it is not spider cracked or anything but the white filler around the plug appears to be what failed. Do I need to totally pull that bad-boy out and redo it or is there an easier / better solution? This is a nice board and I want to make sure I do it right...

    This is a standard glassed foam board, no epoxy or firewire or anything like that.

    Thanks in advance!

  2. #2
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    Nov 2009
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    in the grace of the most holy FSM
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    if it's a nice board & you want it done right, have a professional do it. fins a finicky things & doing it wrong could ruin the board. i do a lot of my own ding repair, but i would never attempt to do my own fin/fin box repairs.

  3. #3
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    Monmouth Beach, NJ
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    It's gotta come out and a new plug installed. Easier done if one plug is undamaged but certainly fixable either way. I have done many. Only attempt it if you have all the proper bits and jigs.
    Last edited by LBCrew; Aug 9, 2011 at 08:49 PM.

  4. #4
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    Quote Originally Posted by njsurfer42 View Post
    if it's a nice board & you want it done right, have a professional do it. fins a finicky things & doing it wrong could ruin the board. i do a lot of my own ding repair, but i would never attempt to do my own fin/fin box repairs.
    "It's gotta come out and a new plug installed. Easier done if one plug is undamaged but certainly fixable either way." LBCrew


    solid advice. I'm a little too die hard DIY for my own good sometimes...

  5. #5
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    Quote Originally Posted by callmedaddy View Post
    The fin now sits at a slightly goofy angle and after my session there was water bubbling out of the fun plug. The glass around it is not spider cracked or anything but the white filler around the plug appears to be what failed. Do I need to totally pull that bad-boy out and redo it or is there an easier / better solution? This is a nice board and I want to make sure I do it right... Thanks in advance!
    You arent really very specific about what type of setup it is (it sounds like FCS) but in general if the fin angle is visibly tweaked, and the water got down into the resin that secured the plug, then that plug has to be drilled out or otherwise removed, and replaced. Its shot. The way I remove bad fcs plugs is with a hole saw of the right diameter...i think it is 1 1/4" Its not that easy to do properly, and if the board is pristine, you should have someone do it who knows FCS installs. If you like to DIY, then get an FCS plug, the proper hole saw to put in your drill, a bit of poly resin (NOT suncure) and re-install using the fin as a jig, match the angle of the other side fin, or vertical if its the trailer. The worst thing you can do is blow it, which will cost the same to fix at a shop, as having them fix what you've got now.

  6. #6
    If you do drill it out yourself use a Quick Set install jig from FCS so the drill bit won't wander and you get a clean hole. Makes the repair pretty simple actually.
    Mitchell explained the method right on.
    Go for it!

    ~Brian
    www.greenlightsurfsupply.com
    Shape Your Surfing Experience

  7. #7
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    consider cutting the plug out, and just resetting it using a mixture of resin, foam dust, and chopped fiberglass cloth. then sand flush and wipe/brush with clear plain resin. you can use epoxy...just get a small kit from the dollar store instead of buying a repair kit for 20 bucks at the surf shop. Just please make sure you let the foam dry before repairing. Cut out the plug and then stick your board in your hot car for a few hours...let it cool, and then make your repair.

  8. #8
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    If its FCS and the other fin plug is still in tacks I heard of guys just installing the plug and while its curing sent the fin it the slot and the angle of the good plug will make it match the angle for the one curing when the fin is intalled while curing. But get the tool if your gonna do it your self and like others sain dont use sun cure for a fin repair . I know its tempting but dont.

  9. #9
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    Yes, sorry, it is FCS, tri fin. It is the starboard side fin. After taking the fins out and cleaning it up last night I noticed that it has happened to both plugs.

    I'll probably run by Austins shop this afternoon and against some of your advice.... buy a couple fin plugs.

    As far a "jigs" go, I have access to a drill press. A properly sized hole saw and ta-da....Right?

    Also, for the filler to keep the plugs in place, any foreseen problems with me just using marine grade epoxy? Is there really any foam or cloth content to that white paste that was used before? Recommend anything better for the job or faster curing?

  10. #10
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    Quote Originally Posted by callmedaddy View Post
    Also, for the filler to keep the plugs in place, any foreseen problems with me just using marine grade epoxy? Is there really any foam or cloth content to that white paste that was used before? Recommend anything better for the job or faster curing?
    White pigment is actually used to make the resin white on a pro FCS install. Foam dust would probably whiten it up some. I mix the resin with some stuff called milled fibers to thicken it up a bit. Austin will have it, or whatever alternative he uses. you only need a teaspoon or so.

    Epoxy resin can be used, but overheating can be a problem with FCS installs using epoxy resin especially in hot temps, and when there are voids in the foam that mean a pool of the resin is setting up and builds up heat. Ive seen it froth up!