My Seam Hole Patching Saga

Problems with your kayak? Tracking to one side over the other? Taking on water? Losing Air? Post your questions, suggestions and answers here regarding issues with the kayaks.

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My Seam Hole Patching Saga

Post by TromboneAl » Mon Aug 07, 2017 1:34 pm

I bought my Dragonfly XC last fall for $150. Not sure whether the seller knew there was a leak.

When I realized it was leaking, I found and patched the small tear on the seam of the outer chamber with a small patch.

That failed, and I removed the patch, ready to use a bigger one. At that point, it looked like this:

The new patch failed and I tried again. Long story short, I used bigger and bigger patches. Some lasted for several trips. I think the main problem was that whenever I deflated the kayak, the patch would be disturbed, and the seal would fail.

Here it is after five cycles of patching:

Today I threw in the towel, and decided to buy a new tube. They're not in stock, so I'll have to wait three weeks. I checked the current patch, and found it was leaking out the end, so I got some HH-66 in there and clamped it up:

Perhaps that will hold, and I won't need to buy the replacement tube.

Lesson Learned:

Go big when you first detect a hold. That is, put on a big patch with lots of cement.

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Post by rlpugh1 » Mon Aug 07, 2017 1:58 pm

Actually, seam splits are nearly impossible to effectively repair. When they're on the seam like that, since there is a small gap between the tube material and the weld, those splits like to run. Also, from the looks of your pics, it looks like you are using PVC tarpaulin patches instead of un-reinforced PVC (like the material the tube is made of). Tarpaulin does not stretch because it is reinforced, so that will actually cause more stress to the seam as it will not stretch during inflation and pull at the effected area.

Failures such as this almost always point to over-inflation. So, the previous owner was probably over-inflating the kayak and may not have known of, or even had a leak, but had essentially "primed" it for failure.

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Post by rsimpson » Thu Aug 10, 2017 2:01 pm

You can email Customer Service and purchase a new main tube for $90. Thank you.

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Re: My Seam Hole Patching Saga

Post by vortex » Fri May 17, 2019 7:41 am

>Actually, seam splits are nearly impossible to effectively repair.

Agreed, if you try to use the repair kit glue, but Stormsure works brilliantly for seam repairs*; 100% success rate so far!

Cover your seam split with a big "slug" of glue. Don't use a patch. Lay your repair flat overnight (to stop the glue running).

Note if your inner tube has consistently gone over pressure during use, your repair will hold, but you may get new splits appearing down the seam; then it's definitely time for a new tube. ... lue-3-x-5g

*small splits 1cm-2cm long.

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