Mitsven longboard deck delam repair

Picked this longboard up awhile back with a big deck bubble/delam. I actually didn’t realize how bad it was at first, but after I bought it I discovered it was a big part of the deck. Fortunately I got it for pretty cheap, and now I guess I know why, lol.

Anyway, I cut off the area of the delam, pulled the glass up, basted everything with resin, and clamped it back down. All well and good, except it wasn’t. It was really a job for a vacuum bag, but I just used clamps and wood strips, and it left some pretty big areas still de-lammed.

So I cut it open again, this time I just peeled the glass up without completely removing it, added more resin, and clamped it again. This time it looks like I got it all, the deck is back laying down tight again.





The board is 9’ 8" with a 1" balsa stringer, and has a very cool looking rocker and foil, and an unusual tail/rail, kind of a round belly or convex in the tail with a very pinched rail. The last pic down below is looking at the tail, with the bottom facing up.

My plan is to sand the entire board thoroughly. Fill in all the dimples on the bottom. Add a layer of 4 oz glass on the back 1/3, top and bottom. On the bottom because there are some buckle cracks, and on the deck where I have done the repair work. I plan to cover the repair area with a fabric inlay first, then glass. The deck repair area needs some body and fender work, i.e. filling in some deep dents with thickened resin first to even out the surface, then the fabric, then a layer of 4 oz.

I may fill some of the worst dents on the deck, not sure yet, also might add a wood tail block and nose block, maybe just straight balsa to match the stringer.

As always, everything done with epoxy resin (Resin Research quick kick)





The deck delam is definitely all gone (fixed), I just re-used the original delaminated glass I cut off, and everything is tight. In these pics I have sanded the whole board and cut scraps of 6 oz cloth to patch over the low spots (dimples & dents from regular use).

On the deck side its not really necessary but I think it looks better and as long as I’m working on the board its kinda nice to be able to smooth the deck back out a bit.





That’s looking really good! I’ve heard really good things about the Mitsven Hulls, I’m looking forward to hearing how it goes.

Thnx! I really didn’t consider the board a hull per se, because it has a big concave under the nose. But it does have a lot of what I would consider hull characteristics, i.e. low rocker, thin nose & tail, pinched rails giving it that knifey look, and all that belly in the tail. Also single fin only, no option for side bites.

Its been awhile since I was researching hulls, so I don’t recall if nose concave is a disqualifier or not. Plus, I always thought hulls had belly through the middle, and I’m not sure if this does. Will have to check that. However, the pinched rails kinda create a belly-like (convex) condition even if the bottom is flat, because the rails start pretty far inside the perimeter, the bottom isn’t flat all the way out to the edge.

At any rate, I noted a lot of this stuff, without specifically tying it to a hull, so I feel kinda dense for that. But now with you mentioning it, I can definitely see it. This board had a decent amount of dimpled deck up at the nose, I can tell someone spent some time up there.

I once shaped a board with some hull-ish features & I really loved that board. Had a totally different feel from any of my other boards. Had it out at malibu one day about 4’ shoulder high, and that board really came alive. Another time at the point in Ventura I had it out in decent waves, about the same size day but a little punchier than malibu, & I got some super fun rides . Even trimmed way up on the nose, which surprised me. A guy actually paddled up to me & said he saw my waves & was wondering if he could try the board, but unfortunately I was leaving & had to be somewhere. After my hip surgery I started riding longer boards, & finally sold it.

That board was 7’ 4” IIRC, belly up front (no concave), pinched rails for that knifey
look, but I gave it a hard down rail out the very back. That one was kind of a magic board for me, Shaped when I was very new & very ignorant, just really a beginner’s luck kinda thing. I think it was maybe my 2nd foam shaped board. I never tried to shape another one just like it, but I probably should, before I get too old to surf.

I remember when I sold it I mentioned on craigslist that it had some hull like design characteristics, & a few people came unglued. How dare I call it a hull, how many years have I been shaping, and who did I study under, and what is my pedigree or qualifications to call my board a hull, etc etc I finally reworded the description just to get them to back off. It sold pretty quick anyway, I really loved that board. Will find some pics.


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