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First Build - 9'0" Wing 
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sage

Joined: Thu Aug 06, 2009 9:46 pm
Posts: 88
Location: British Columbia, Canada
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Unread post Re: First Build - 9'0" Wing
Hi Sliver,

I'm in Nanaimo.

Just had a look at your web site. Nice boards. If I ever decide to build a paddle board I now know where to go. CnC cut frames look great, that would save so much time, not to mention way more accurate.

Didn't glass today since it's rainy and on the cool side.

Thanks for the warming up the resin trick, I'll give that a try. I'm guessing that will cut down on work time but I got slow hardener (figured it would be more forgiving for my first go). I'm using System Three's "Silver Tip" epoxy, it's nice and clear.


Sat Jun 18, 2016 11:57 pm
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sage

Joined: Thu Aug 06, 2009 9:46 pm
Posts: 88
Location: British Columbia, Canada
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Unread post Re: First Build - 9'0" Wing
Trying to post photo of fins. Flickr has changed a lot since I last did this. Let's see if this works.

<a data-flickr-embed="true" href="https://www.flickr.com/photos/underwaterwanderer/27681187662/in/album-72157629150730570/" title="64-Glassing Fins"><img src="https://c7.staticflickr.com/8/7376/27681187662_e393973d6f_b.jpg" width="800" height="600" alt="64-Glassing Fins"></a><script async src="//embedr.flickr.com/assets/client-code.js" charset="utf-8"></script>


Sun Jun 19, 2016 7:59 pm
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sage

Joined: Thu Aug 06, 2009 9:46 pm
Posts: 88
Location: British Columbia, Canada
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Unread post Re: First Build - 9'0" Wing
Well that didn't work.

Anyone know how to post from Flickr these days?


Sun Jun 19, 2016 8:07 pm
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sage

Joined: Thu Aug 06, 2009 9:46 pm
Posts: 88
Location: British Columbia, Canada
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Unread post Re: First Build - 9'0" Wing
Looks like we can upload directly to the forum now. That didn't work a few years ago.

Tried to delete that previous post, thought you had 20 minutes to do that but couldn't find how.

Here is a photo of glassing the fins. I did 2 layers of 4oz cloth at once.


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64-Glassing Fins.jpg
64-Glassing Fins.jpg [ 333.4 KiB | Viewed 859 times ]
Sun Jun 19, 2016 8:15 pm
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sage

Joined: Thu Aug 06, 2009 9:46 pm
Posts: 88
Location: British Columbia, Canada
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Unread post Re: First Build - 9'0" Wing
A few more pictures of making fins.

In the top photo I'm getting ready to add more layers to the base of the center fin. I only had 4oz cloth and it takes a lot of layers to build the base to get enough thickness with 4oz cloth. Next time I'll use something heavier. I did several layers at a time laying down a layer of glass, wetting it, laying another layer, wetting it and so on. Hope that will work.

In the previous post you could see how, for the center fin, I had wood in the base cut back a bit for where the pin hole needs to go. That way water won't get to the wood.

As with woodworking, wax paper is your friend.


Attachments:
66-Build up base.jpg
66-Build up base.jpg [ 308.26 KiB | Viewed 859 times ]
65-Glassed Fins.jpg
65-Glassed Fins.jpg [ 258.75 KiB | Viewed 859 times ]
Sun Jun 19, 2016 8:24 pm
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sage

Joined: Thu Aug 06, 2009 9:46 pm
Posts: 88
Location: British Columbia, Canada
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Unread post Re: First Build - 9'0" Wing
The first small fins I made were too big for side-bites. So I made some new smaller ones in April.

My gloss coats were streaky a bit, maybe it was too cold and the epoxy was too thick.

I ended up finishing the fins with about 4 coats of spray-on water-based Varathane. At first I thought it wasn't glossy enough but they look better now, maybe it took a while for the varnish to cure.

With the varathane spray, it worked better to have the fins laying flat (as opposed to standing up). Having the bases wedged between small pieces of 2X4s worked well to keep them flat and off the work surface.

The bases were pretty big at first. First trimmed most of the excess glass with jig saw then finished with a dremel.

These were made with off-cuts from the decks of the board.


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67-Fins.jpg
67-Fins.jpg [ 311.38 KiB | Viewed 859 times ]
68-Finished Fins.jpg
68-Finished Fins.jpg [ 461.14 KiB | Viewed 859 times ]
Sun Jun 19, 2016 8:38 pm
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sage

Joined: Thu Aug 06, 2009 9:46 pm
Posts: 88
Location: British Columbia, Canada
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Unread post Re: First Build - 9'0" Wing
Ready to glass.

I'm wondering whether I should do a seal coat first because of those black walnut strips I put in the board. The black walnut strips have some porous open grain showing in a number of places and I'm worried those might cause bubbles in the resin.

Does anyone have any experience with glassing over porous open grain? Should it be sealed first.

That didn't appear to be a problem when I made the fins but then again I didn't notice open porous end grain in the fins.

Speaking of the black walnut strips, I don't know if would use hard wood accent strips in a board again. The problem is not so much in the weight as in the different densities of the woods (rest of board is cedar). This makes getting consistent shaping difficult near the hard wood strips because cedar, of course, sands and planes much more easily than walnut. If ever do use hard wood accent strips in a board again I would put them closer to the center of the board which would reduce shaping headaches.


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69-Ready to Glass.jpg
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Sun Jun 19, 2016 8:55 pm
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sage
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Joined: Wed Nov 14, 2012 1:47 am
Posts: 42
Location: Vancouver, BC
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Unread post Re: First Build - 9'0" Wing
Thank-you for the nice comments!

I would do a cheater coat with with your SilverTip epoxy thinned with denatured alcohol equal amount as the hardener 2:1:1 as it makes glassing easier with less chance of having dry spots. I go into more detail here:

http://sliverpaddleboards.com/cheater-coat/

_________________
Clayton
www.sliverpaddleboards.com


Tue Jun 21, 2016 1:35 pm
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sage

Joined: Thu Aug 06, 2009 9:46 pm
Posts: 88
Location: British Columbia, Canada
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I did the lam coat on the top last night. No cheater coat. It was 29C (84F) in the shop when I started at 7pm and then it started to cool from there. Bit of a late start but I read a few places that it was better to epoxy when the temperature is dropping instead of rising. It went OK for the first time. Had to wait until 12:30 am to cut the tape off thanks to the slow hardener. I didn't feel like doing a hot coat at 1:00 in the morning.

I sanded down the lap join today so I'll do the lam coat on the bottom next.


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70-First Coat.jpg
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Tue Jun 21, 2016 8:17 pm
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sage

Joined: Mon Nov 26, 2012 4:14 am
Posts: 31
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Unread post Re: First Build - 9'0" Wing
wow!! Nice work!!

Incredible fins!! I Love it. Very fine work!!!

How to post from flickr??


Wed Jun 22, 2016 12:18 pm
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