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Old 07-18-2009, 08:47 PM   #1
bbowen
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Repair Kevlar Canoe?

Hi guys and gals,

I was doing some work on my Wenonah Vagabond Ultralight and something hot apparently touched my hull and melted the gel coat on the outside. You can see the threads of the Kevlar.

I'm going to try and attached a picture to give you an idea. I'm assuming I should repair this. The area is smaller then the size of a USA dime.

Can I just put some Gel coat on it or does it require more then that?

Thanks!

--Ben
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Old 07-18-2009, 09:19 PM   #2
stripperguy
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Mr. Bowen,
If you're really worried about it, slather some resin over that spot.
Is that a polyester boat? Or was it built with epoxy resin?
Either way, a dab of epoxy resin will do you just fine.

BUT, if that was an epoxy resin layup, don't use polyester or vinylester resin over the epoxy, it's a bad combo and will not cure properly or bond well.

So that's it...epoxy over anything = OK.
Polyester over epoxy = bad juju.
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Old 07-18-2009, 09:25 PM   #3
bbowen
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Ouch, I have no idea!

Its Kevlar all the way. Aren't they made with epoxy? Amy suggestions for clear waterproof epoxies?

Would this work:

http://www.loctiteproducts.com/produ...id=49&plid=473

Thanks.

Last edited by bbowen; 07-18-2009 at 09:42 PM..
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Old 07-18-2009, 10:19 PM   #4
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Mr. Bowen,
While I am not sure what you should do, I have found Wenonah very helpful with other questions that I have had regarding their products an would consider contacting them. Best of luck, would love to hear what you finally decide to do.
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Old 07-19-2009, 07:14 AM   #5
stripperguy
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Mr. Bowen,
Sure, that Loctite product could work, as could almost any epoxy resin.
Too bad you are so far from me, I have a couple gallons of epoxy resin, all you need is less than a mixed ounce...
BTW, I buy most of my resins from here:

http://www.raka.com/index.html

and here:

http://www.mertons.com/Epoxy/epoxy_resins/index.html

Maybe you can mooch a dollop from the Placid Boatworks guys.
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Old 07-19-2009, 10:25 AM   #6
wbwells
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West Systems has repair packs that cost $4.00


Go Here and see

http://sweetcomposites.com/WEST.html
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Old 07-19-2009, 08:59 PM   #7
Awetcanoe
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Quote:
Originally Posted by stripperguy View Post
Mr. Bowen,

Maybe you can mooch a dollop from the Placid Boatworks guys.
Placid does not use epoxy in their boats.

But then Wenonah probably does not either.
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Old 07-21-2009, 09:22 PM   #8
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Quote:
Originally Posted by Awetcanoe View Post
Placid does not use epoxy in their boats.

But then Wenonah probably does not either.
OK then what do they use?? Just Curious??

Wbw
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Old 07-22-2009, 02:52 PM   #9
love2paddlemore
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Wenonah says they use vinylester resin.
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Old 07-22-2009, 07:13 PM   #10
canue
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Before you make the patch lightly sand the area so you remove the wax in the cured resin, that is for good adhestion. Do not sand hard because kevlar gets real fuzzy, you onjly want to sand the resin. I would apply a coat of epoxy, make sure it is water proof not water resistant. West sysem as mentioned is good stuff. Epoxy seems to adhere to most anything. I have used it for years repairing my canoes.
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Old 07-24-2009, 12:50 PM   #11
charlie wilson
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It's hard to tell from the pic, but the damage seems to be on the inside of the hull.

WeNoNah uses Co-Rez Vinyl Ester. Placid uses Ashland Derakane Epoxy Vinyl Ester. Patching with Epoxy will certainly work, but future VE patches may not bond, so I'd suggest using VE.

There will be no wax additive to either exterior gel coat, exterior skin coat or interior resinated Kevlar fabric. Wax is added mostly to gel coat to improve aerobic cure on parts sprayed outside a mold. At Bell and Pb we've always done repairs with un-waxed gel. AN acetone wi9pe followed by sanding through 200 grit usually solves all problems.

Light sanding followed by an acetone bath will improve bonding considerably on whatever surface is being worked on.

Last edited by charlie wilson; 08-03-2009 at 11:58 AM.. Reason: clarity
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