Vessel befitting a Seagull at last.

Talk about and buy or sell boats that are suited to Seagull outboards here

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Nudge
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Re: Vessel befitting a Seagull at last.

Postby Nudge » Sat Oct 29, 2016 8:24 am

Woodwork gauge is the tool for scribing marks.I prefer Marples


100% with this ^
Is it better to over think, than not think at all?

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Hugz
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Re: Vessel befitting a Seagull at last.

Postby Hugz » Sun Sep 17, 2017 4:11 am

Thought I would get motivated and do a bit. First I cleared the area of rabid dogs and then removed most of the rotted planks on the worse side and found 5 broken ribs. I've decided to cut out worse bits and glue in a replacement section with some ply to strengthen both sides of rib. Not original I know but in keeping with material on boat. I've decided to put a thin film of glass over the hull. More of a safety issue than anything else. I used some baking paper and blue tack to make a template for the planks. I'm hoping ply planks of 6mm ply by 160mm will bend and twist without too much coercion. Will it?

cracked boat ribs.JPG


cracked boat ribs1.JPG
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Nudge
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Re: Vessel befitting a Seagull at last.

Postby Nudge » Mon Sep 18, 2017 10:20 am

I think glassing over the hull is a good idea! :)
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rstumpy
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Re: Vessel befitting a Seagull at last.

Postby rstumpy » Mon Sep 18, 2017 11:57 pm

Doing a light glass overlay sounds like a good idea, and may even be one, however a few considerations are in order for a proper and lasting job using a quality epoxy like West System.

--All the old paint will need be removed and the hull must be dry...otherwise minimal saturation will be the result and it'll likely de-lam sooner than later.

--The inside of the hull will need to be well-sealed with something or stripped and coated with epoxy. Otherwise inevitable moisture will quickly migrate through the thin hull and eventually de-lam your epoxy skin. Lots of debate over the years concerning letting things breath or permanently sealing it up internally like one would with new construction cold molding or strip builds.

--Regardless of the above, some folks have had additional problems involving the different material expansion coefficient between the wood and the glass/epoxy, particularly on light hull material. Not an issue with new builds with high saturation levels, but can be an issue with old boats. Worse in locales with large temp fluctuations. The glass skin expands and contracts differently than the wood, de-lams result. Some folks add mechanical attachment to help...after curing...keel caps, gunnels, etc. Not sure I'm sold on this.

That being said, lot's of refits Ive seen going this route have had absolutely no problems...worth thinking about though, since your mileage may vary.

That's certainly a sweet little hull!

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Hugz
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Re: Vessel befitting a Seagull at last.

Postby Hugz » Tue Sep 19, 2017 4:24 am

Good info there for me to digest. Thanks. I hadn't thought of temperature expansion considerations. Preparation is the key. I'll probably have the glass done by professionals. I've seen too many bodgy jobs and would like a clean professional finish. I'll probably re varnish the interior. It will never be a show boat but will be in keeping with its 70 year old age. Can glass be absolutely clear if I wish to keep the timber finish of the transom? The rest of the hull I wish to keep white so I guess that will have to be a white gel coat. Hopefully it will still look like a wooden and not a plastic boat.

I'll keep her upside down on a hardstand during off season and a ventilated cover other times. I been advised to sprinkle salt inside as it is only fresh water that rots wood....true??

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Nudge
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Re: Vessel befitting a Seagull at last.

Postby Nudge » Tue Sep 19, 2017 10:39 am

I been advised to sprinkle salt inside as it is only fresh water that rots wood....true??

Don't bother with the salt, it will only Keep the moisture there! If you keep the boat upside down when not in use, it will be fine.

Yes you can epoxy the inside and keep it looking like wood. I would still varnish over the epoxy as most epoxy's don't have any UV stability.

The rest of the hull I wish to keep white so I guess that will have to be a white gel coat

If you are going to do this, you may have to get them to use epoxy flow coat so it will stick. Or just paint it with 2 pack paint.... It will save you some $$$ and still look good! 8)
Is it better to over think, than not think at all?

rstumpy
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Re: Vessel befitting a Seagull at last.

Postby rstumpy » Tue Sep 19, 2017 11:21 pm

Agree with Nudge on all points.

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Hugz
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Re: Vessel befitting a Seagull at last.

Postby Hugz » Wed Sep 20, 2017 1:22 am

Good one chaps! I'll go with a clear glass and then paint. Presumable I'll need to give the glass a sand down so the paint will stick.

Going to have to form up a few layers of thin ply around a curved timber mold and clamp and glue to get the correct shape for each rib. Lucky I'm semi retired now! Fun.

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Nudge
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Re: Vessel befitting a Seagull at last.

Postby Nudge » Wed Sep 20, 2017 9:21 am

Presumable I'll need to give the glass a sand down so the paint will stick.

100% no sand, no stick!
Look up peel Ply, it will help with the finish on the outside.
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Hugz
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Re: Vessel befitting a Seagull at last.

Postby Hugz » Mon Oct 16, 2017 4:40 am

Sand it is then.

Boat and Seagull parts working together....

G clamps boat.JPG
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Nudge
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Re: Vessel befitting a Seagull at last.

Postby Nudge » Mon Oct 16, 2017 7:59 am

Just a bit of work ahead of you then! I like the vintage c clamps! :lol: I have seen them being sold as that too!!
At least the sun is shining, all we have is rain for months and if its not raining its blowing its tits off :x
Is it better to over think, than not think at all?

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Hugz
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Re: Vessel befitting a Seagull at last.

Postby Hugz » Mon Oct 16, 2017 8:28 am

Perfect boat repair weather here. Hope the clamps don't get nicked! Communal car park. I reckon I might float-my-boat by chrissie 2018 :lol:


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