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Old 16 May 2011, 10:49   #1
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Repairs To Hull

Afternoon,
Got a couple of nasty cracks in my hull, one of which is about an inch or two long and "moves" a bit.

Is there any way of filling it and finishing it myself or is it a case of taking it to the menders !!

Materials and methods please!!

Thanks so much,
Midger
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Old 16 May 2011, 10:51   #2
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It sounds like it goes all the way through, if so I would suggest a professional repair. Can you post a photo?
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Old 16 May 2011, 11:43   #3
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Have taken a photo and hope I have attatched it ok. If its there , what do you reckon ? Thanks.
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Old 16 May 2011, 13:56   #4
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Void

That looks like a void set from build. Grind / sand back to sound material and fill with matching gelcoat.
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Old 16 May 2011, 17:44   #5
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Grind it back and stick an oil heater or the like to dry it off.

After a short while, go back and fill it as best you can with Sikaflex (this is to ensure dampness doesn't get to the repair).

Apply a few layers of fibreglass until you have desirable effect, allow to set.

Come back, sand down and finish with gelcoat.

This is how i would do a similar repair. That said, hulls should be repaired from the inside.
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Old 16 May 2011, 21:03   #6
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make sure you use epoxy and not polyester resin west systems stuff is widely available

http://www.ecfibreglasssupplies.co.u...epair-kit.aspx is what you'd want and these suppliers are excellent

remember grp is itchy stuff and gets everwhere! so take precautions when your prepping the hole , probably coulda worded that better
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Old 17 May 2011, 04:15   #7
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Grind it back and stick an oil heater or the like to dry it off.

After a short while, go back and fill it as best you can with Sikaflex (this is to ensure dampness doesn't get to the repair).

Apply a few layers of fibreglass until you have desirable effect, allow to set.

Come back, sand down and finish with gelcoat.

This is how i would do a similar repair. That said, hulls should be repaired from the inside.
OK, I'm no professional, and Sikaflex is good stuff, as I have had reason to regret recently, but I would question putting it into the hull inside a repair. I'd put a lot more faith in a repair such as Rogue Wave suggests with West System epoxy as the basis
However, I am always prepared to be educated...............
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Old 17 May 2011, 05:02   #8
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OK, I'm no professional, and Sikaflex is good stuff, as I have had reason to regret recently, but I would question putting it into the hull inside a repair. I'd put a lot more faith in a repair such as Rogue Wave suggests with West System epoxy as the basis
However, I am always prepared to be educated...............
I am not saying my way is the best way but this is how I have been shown by a Mr Lyn Dudley, an old hand at building power boats such as the Concorde and F1 spec hulls for racers such as Jonathan Jones.

Be it his way be old fashioned or superseded by newer methods, I can vouch and say, everyone I and he has done on our behalf, have been spot on. I am by no mean stubborn, so If you guys have better suggestions, I am willing to learn too.

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Old 17 May 2011, 07:33   #9
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I do'nt see a problem with Damiens repair using sika as a filler in the void is cool. and I;m in agreement you, need to fibreglass over it

I was pointing out that Epoxy was a superio methos of doing a fibreglass repair because it has adhesive qualiies and polyester doesn't so normal grp 's fhat itits reementrepair its available in the Chandlers aint the way to go the West system is. are all in ag

what I think we are all i n agrement is that it is feasible for Midger to sort it oot himself
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Old 17 May 2011, 09:58   #10
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I am not saying my way is the best way but this is how I have been shown by a Mr Lyn Dudley, an old hand at building power boats such as the Concorde and F1 spec hulls for racers such as Jonathan Jones.

Be it his way be old fashioned or superseded by newer methods, I can vouch and say, everyone I and he has done on our behalf, have been spot on. I am by no mean stubborn, so If you guys have better suggestions, I am willing to learn too.

Fair nuff.
Good luck with sorting it "oot" Midger
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