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df
United Kingdom
5994 Posts |
 Posted - 01 Apr 2016 : 18:04:35
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Every old boat has osmosis to some extent, theres a lot of scare stories about it but for poodling along rivers and canals nobody has ever sunk from it.
NBAS--The communal colostomy bag of the boating community.
Visit leomagill.co.uk |
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IanM
United Kingdom
2238 Posts |
Posted - 01 Apr 2016 : 19:11:51
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That's a dodgy looking patch, certainly not a pro repair.
From the pic it looks like it does not even have any gelcoat on it. You need to look more closely at that I reckon. Can you get to the inside of it to see how well it is bonded? |
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cliveshep
Thailand
1324 Posts |
Posted - 05 Apr 2016 : 14:52:28
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quote:
Originally posted by Landor
I urge you to have a close look at the inside of the bow to see what they have done about that "repair" inside because outside it is crap and will fail.
I suggest you have a darn good sand and grind outside and inside, lay-up some bi-directional cloth inside on a well roughened surface, using an electric paint stripper gun and a shave-hook to remove softened resin inside exposes fibres and will give a good bond.
Lay-up a couple of extra layers of cloth inside going well back at least 3 inches (75mm) beyond the damaged area.
Outside sand well back with a coarse flap-disc on a mini grinder (they are very cheap on e-bay if you don't have one) and taper down the existing. Lay-up with again a 75mm overlap for the first layer, 50mm for 2nde and a 25mm overlap for 3rd layer, sand all down to remove steps and apply a coat or two of plain resin to seal.
Any making good do with epoxy filler NOT P.38 or similar polyester based fillers as it is below the waterline, Paint with a good 2-pack polyurethane paint.
I mention all this drivel because that part of the stem is liable to collision damage again in the future, that's the bit that will hit lock-sides etc and that repair is a temporary one at best. If you hit again it will split away as it has no overlaps.
You can buy mail order everything you need from East Coast fibre glass supplies, here: http://www.ecfibreglasssupplies.co.uk/
Finally living the dream!
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Landor
United Kingdom
46 Posts |
Posted - 05 Apr 2016 : 17:53:49
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Thanks lads. I'm on it this weekend. I'll take a look inside and out. It doesn't look good does it. It's not letting water in at the minute but from what you guys are saying, it's an accident waiting to happen.
Cheers |
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df
United Kingdom
5994 Posts |
Posted - 05 Apr 2016 : 18:35:06
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The fact that there's resin and glass OVER antifoul gives the game away that it will not have a good hold to the hull, with the right bits it's not a hard job to do it right.
NBAS--The communal colostomy bag of the boating community.
Visit leomagill.co.uk |
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Landor
United Kingdom
46 Posts |
Posted - 06 Apr 2016 : 00:15:36
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Thanks df, Ian and Clive. I was hoping to get inside tonight and have a look but work took over unfortunately.
If I get time tomorrow I'll get a look inside and take some pics and post on here.
Thanks for the info on what to do I'll have to source some fibreglass and resin from somewhere. I'm hoping to get below the waterline completed this weekend. I'm planning on having her back in the water by the end of the month....
Thanks c |
Edited by - Landor on 06 Apr 2016 07:04:26 |
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cliveshep
Thailand
1324 Posts |
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Deano
United Kingdom
1843 Posts |
Posted - 06 Apr 2016 : 16:53:39
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Are you on commission Clive??????
It's a crap looking repair, worthy of close inspection - inside and out, but I doubt it is going to just drop off anytime soon.
Dean - Boating on the Great Ouse.
Freeman 32 "Liberty"
See the photos http://www.flickr.com/photos/54758027@N00/ |
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Landor
United Kingdom
46 Posts |
Posted - 06 Apr 2016 : 17:42:43
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Ha! Clive I'll pay you the commission pal. Really appreciate your help.
I've just got in from work and getting changed and going to take a couple of photos of the inside. And yes I'm going to have a look on that website for the materials, they look reasonable.
I've got three weeks to get the boat in the water so got a fair bit work to do before then. The boat will be on a lake throughout the year so I'd rather make the hull sound and be able to sleep at night 
Pics to follow
Cheers |
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df
United Kingdom
5994 Posts |
Posted - 06 Apr 2016 : 18:55:38
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I'm on commission as well so buy a paddle roller while you are at it and a handy dispenser/measurer bottle for the catalyst.
The paddle roller helps massively with getting matting to lock in together and get the air bubbles out of the layup as you go and makes for a much better layup, a few spare pre-measured mixing cups and a box of the cheap wooden spatulas help too, if you can get a spare body to mix and tidy up the job gets a whole lot easier as you can work for the full potlife of the resin.
NBAS--The communal colostomy bag of the boating community.
Visit leomagill.co.uk |
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Landor
United Kingdom
46 Posts |
Posted - 06 Apr 2016 : 20:33:04
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This is inside the hull. The dark bits at the bottom are bits of dirt. It looks OK to me however the outside as you suggest is beyond crap so I'm going to take it back and do like you say regarding reducing the patch sizes etc and finishing it with a clear resin mix.
|Could I put the antifoul primer straight on it (with it keyed) or should I puth the 2 pack on first then key it and then put the antifoul primer on, then the antifoul?
cheers
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Edited by - Landor on 06 Apr 2016 22:31:25 |
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Deano
United Kingdom
1843 Posts |
Posted - 06 Apr 2016 : 20:57:06
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You need something waterproof over the repair.... strangely GRP isn't..... the creamy white is evidence of water absorption.
Epoxy would be better (but more expensive) than polyester resin. But a quick coat of epoxy or gel shield would do. As would a good quality paint I guess.
Dean - Boating on the Great Ouse.
Freeman 32 "Liberty"
See the photos http://www.flickr.com/photos/54758027@N00/ |
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Landor
United Kingdom
46 Posts |
Posted - 06 Apr 2016 : 22:29:17
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Cheers Deano,
There was a sandbag over it that has soaked up moisture so that may be the guilty party.
I'm going to take down the outside of the repair and might do the same on the inside and add some matting inside and out and cover with clear resin and a coat or 2 of decent paint.
Clive took the time to put a shopping list together for me and think I'll get the goodies ordered and crack on with it when they arrive. The repair may hold but I'd rather be sure and get through the upcoming season then I'll spend a lot more time over winter getting her in shape. |
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df
United Kingdom
5994 Posts |
Posted - 06 Apr 2016 : 22:32:19
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I'd give the inside a good rough up and overlay a good few layers of matting just to make sure, going a good bit bigger than the original patch.
NBAS--The communal colostomy bag of the boating community.
Visit leomagill.co.uk |
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IanM
United Kingdom
2238 Posts |
Posted - 06 Apr 2016 : 22:59:37
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Does the patch extend to the other side of the vee?
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Topic |
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Advice on Norman 20 restoration for novice
