Tech Talk: Fin box repair or replacement


 We’re back again at Appletree Surfboards in the repair room. Last year we did a video about how to fix small dings on your surfboard and on your carbon fiber board. And we got a lot of good response. We want to make our boards as strong as possible, but unfortunately little dings can occur.

Keep your board in tip top condition

We want to show you how easy it is to keep your gear in tip top condition and what you can do yourself. Of course, if you’re afraid of this stuff, take it to a specialist, but we think that a lot of the normal, like small dings and small repairs, you can easily do yourself. So because we had such good feedback, we wanted to do a complete series about more common ding repairs on both our kiteboards and our carbon fiber boards.

Fin box repair or replacement

And in today’s video, I want to show you something that unfortunately does happen, not often on our boards, but it does happen on a lot of surfboards and kiteboards, and that is the fin box blows out or it needs a fin box replacement. So in this video, we’re going to show you how to.  

  • Step 1 – Completely remove the old fin box from the board – 02:30
  • Step 2 – Remove the loose bits of foam – 03:40
  • Step 3 – Fill the cavity with foam – 04:46
  • Step 4 – Sanding – 08:56
  • Step 5 – Re-routing the cavity for a new box – 09:50
  • Step 6 – Installing the new fin box – 11:15
  • Step 7 – Glassing over the fin box – 13:30
  • Step 8 – Sanding the cured epoxy – 17:21
  • Step 9 – Final layer of epoxy resin – 19:00
  • Step 10 – Final sanding
  • Done!

If you’ve got any questions, don’t hesitate to contact us. We will always be happy to help. And we’re going to do more of these repair videos. Let us know if you like them, give us a follow, give us a thumbs up, and I hope to see you in the next one. Thanks!

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