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420 deck to hulll!!

Printed From: Yachts and Yachting Online
Category: General
Forum Name: Repair & maintenance
Forum Discription: Questions & tips on the subject
URL: http://www.yachtsandyachting.com/forum/forum_posts.asp?TID=2666
Printed Date: 11 May 25 at 7:48pm
Software Version: Web Wiz Forums 9.665y - http://www.webwizforums.com


Topic: 420 deck to hulll!!
Posted By: scottishgem
Subject: 420 deck to hulll!!
Date Posted: 07 Feb 07 at 2:32pm

Hi all

i need to repair the seam between the hull and deck on our 420, shes letting in a fair bit of water esp, when upside down!! i thought fibreglass tape would be the best option but a bit bewildered about where to buy..? not as keen on matting from our local diy store as it looks poo, also, what is the best covering paint/gelcoat?  where do u buy yours? also if anyone out there has a 420 what self baler has it got ive just bought an inside fit by accident when our old battered one is an outside fit. (rondar hull 48096)

gem x




Replies:
Posted By: jeffers
Date Posted: 08 Feb 07 at 8:17am
Hi Gem,

I dont think glass matting et al would be the way to go here. If memory serves the 420 deck/hull joint rolls over and the 2 halves are glued together. You may find you stand a better chance by digging the old glue out and replacing it with new (I used wests when i did my Laser). Not only will it look neater it will probably be stronger as well.

Paul


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Paul
----------------------
D-Zero GBR 74


Posted By: Blobby
Date Posted: 08 Feb 07 at 12:28pm

The Hobie Tiger trick to solve leaky dagger board cases is to thin out some polyester resin and then pour it inside the hull and rotate the hull to get the resin to the leaky joint - just leave the inspection hatch open long enough to vent the thinner and don't put a match inside it to see if it has gone off...



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One step forwards, 2 steps back...


Posted By: Rupert
Date Posted: 08 Feb 07 at 7:53pm
Mending the 420 is more like mending a Laser. You have to turn the boat over, dig out all the glop round where the joint has failed, as Jeffers says. I know most professional repairs say to use the same material to mend the boat as was used to build it, in this case thickened polyester resin. I've both used epoxy and polyester on these jobs in the past, and found both work. Most important thing is to get rid of what was in there first, even drilling down into it or using a router, if you dare!

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Firefly 2324, Puffin 229, Minisail 3446 Mirror 70686


Posted By: olly_love
Date Posted: 08 Feb 07 at 8:12pm

a nice bog of epoxy and microfibers will be very strong and then possiably wrap some glass tape over it all.  you can get all of this stuff online

from shops like

purple marine

ldc

northampton sailboats



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TWO FRANK-Hunter Impala




Posted By: Rupert
Date Posted: 09 Feb 07 at 8:55am
If you do the scraping out and the "bog" properly, there will be no need for the glass tape, so leaving the gunwale looking as it did before.

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Firefly 2324, Puffin 229, Minisail 3446 Mirror 70686


Posted By: Lucy Lee
Date Posted: 09 Feb 07 at 9:54pm
Post a picture of the problem area & we'll have a better idea what to advise..

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Fly Cherub!


Posted By: scottishgem
Date Posted: 10 Feb 07 at 3:20pm

Cool thanks all!!

I will try to get some photos to post asap, its under gaffa tape just now and we're taking it away to a race now for tomorrow. (good old gaffa tape!!) but as its half term and im a teacher ive got loads of time to tinker with it this week



Posted By: jeffers
Date Posted: 12 Feb 07 at 9:23am
Originally posted by scottishgem

Cool thanks all!!

I will try to get some photos to post asap, its under gaffa tape just now and we're taking it away to a race now for tomorrow. (good old gaffa tape!!) but as its half term and im a teacher ive got loads of time to tinker with it this week



Spare a thought for us support staff who are still slaving away while you have your week of leisure.......


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Paul
----------------------
D-Zero GBR 74


Posted By: scottishgem
Date Posted: 12 Feb 07 at 11:42am

eh? all our LSA's and NNEB's are off too, what sort of support work do you do?

Greatest sympathy

 

gem



Posted By: jeffers
Date Posted: 12 Feb 07 at 1:16pm
I am one of the IT gurus that all schools need these days....no peace for the wicked (what did I do that was so wrong......)

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Paul
----------------------
D-Zero GBR 74


Posted By: Garry
Date Posted: 12 Feb 07 at 6:43pm
Use polyester resin and filler powder NOT epoxy. All the damaged area has to be dug out back to sound glass and you will probably have to devise a method of clamping it.

And make sure you remove all the glue residue near the joint that came from the gaffer tape.

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Garry

Lark 2252, Contender 298

www.cuckoos.eclipse.co.uk



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