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Old 12-17-2012   #1
New Zealand, New Zealand
Join Date: Dec 2012
Posts: 3
Advice on fixing this crack

Hey all,

I've bought a (2009?) Wavesport Habitat 80 with a crack in the cockpit rim just above the thigh brace as in the photo. It is the white stress mark in the indent. I've shown it next to a new habitat picture just to give you an idea of exactly where it is.

Any advice regarding the best way to strengthen this crack to stop future issues would be greatly appreciated.

I was thinking of maybe drilling each end, and giving a bit of plastic welding a go. Or somehow riveting each side to a bit of aluminium to take the strain, but I'm worried the rivets may cause their own problems.

Where it is it won't actually cause any leaking, but I really don't want it to get bigger, and that area takes quite a lot of stress during rolling etc.

Thanks in advance!


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Old 12-17-2012   #2
paulie's Avatar
Rotorua, NZ
Join Date: Mar 2007
Posts: 165
Don't worry about it you're just going to break it anyway! Cheers buddy!

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Old 12-17-2012   #3
New Zealand, New Zealand
Join Date: Dec 2012
Posts: 3
Well hopefully not! Although just leaving it was one option.

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Old 12-17-2012   #4
don't bogart that
rpludwig's Avatar
Frosted Flakes N of Baytuckey, Colorado
Paddling Since: 2005
Join Date: Feb 2011
Posts: 180

I have made plastic repairs like this with the heat gun, I think it is better to drill out the ends of the crack and use a small die grinder to v out the crack before placing the melted plastic, and try to heat boat and repair plastic so they melt together.... use good ventilation, High density polyethylene will release PBA when heated, and that is a carcinogen.
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Old 12-18-2012   #5
KSC's Avatar
Boulder, Colorado
Paddling Since: 2003
Join Date: Oct 2003
Posts: 2,032
Looks like no big deal to me. I wouldn't worry about it.
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Old 12-18-2012   #6
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Buena Vista, Colorado
Paddling Since: 2005
Join Date: Jun 2008
Posts: 4,207
Fill it with Aquaseal and call it good. Not as strong as plastic welding, but a hell of a lot quicker and easier.... especially for as minor a crack as that.
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Old 12-18-2012   #7
New Zealand, New Zealand
Join Date: Dec 2012
Posts: 3
Would it be worth drilling out the ends then aquasealing? Assuming that won't weaken it more, it could be the best suggestion because the split is so small to work with when plastic welding?

Yeah I know it's small otherwise I wouldn't have bought it. My only concern is the split spreading, when it would be much more of an annoyance to deal with.

Thanks for the input so far though
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Old 12-18-2012   #8
Join Date: Aug 2004
Posts: 772
Drill it out if it makes you feel better, just make the holes small. I don't know that aquaseal will do anything but fill the void. It's under the skirt so it shouldn't be an issue with leaking. I don't think the stresses from rolling are going to be large enough to have an affect on the crack. If it were my boat I wouldn't be worried about that crack. The only way I can see a boat cracking like that would be from torquing the straps down on a roof rack. Don't over tighten the straps if you put it on your car roof.
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Old 12-18-2012   #9
Provo, Utah
Paddling Since: 2003
Join Date: May 2010
Posts: 18
G-flex epoxy

Check out G-flex epoxy on youtube. I have used it to repair everything from holes in a canoe made from the same type of plastic as Your kayak, to stress fractures in a rifle stock. Good luck.
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Old 12-20-2012   #10
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Salida, Colorado
Paddling Since: 1996
Join Date: Apr 2007
Posts: 379
that little guy?... i wouldn't worry about that little guy....

Please take a look at my Photo Web Gallery.
I also have here some gear reviews (that I might update soon).
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