Folding Kayaks Forum

Cooper zipper problem
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Author:  Ferenc [ Tue Jul 19, 2016 11:12 am ]
Post subject:  Cooper zipper problem

I have been using a Cooper for 5 or 6 years, something like 150 days mainly along rivers (Danube, Loire) or seashores (Creta, Orkney). It looks now like an old cat all patched, but I can say I appreciate it a lot (light on the back, pleasant and fast on water...)

Now I got a big problem : I cannot close anymore the zipper of the stern deck, the slider got broken (it got distorded and opened on one side) ! It seems that the teeth are still good, because I could zip and unzip even after the pull tab first broke and been replaced by a cord... Nevertheless these last week it was gettig harder and harder to get the slider clutch into the teeth at the verry beginning (10cm ahead) of the zipper.

Does anybody got this problem ? Do you have any idea to fix it ?

Thanks and all the best from Paris

Author:  berniem [ Tue Jul 19, 2016 5:32 pm ]
Post subject:  Re: Cooper zipper problem

I had that problem - two years ago - Folbot put in a new slider without charge. However, since the company is no longer operational, perhaps you can bring it to an outdoor camping store.

Author:  Apathizer [ Wed Jul 20, 2016 1:21 am ]
Post subject:  Re: Cooper zipper problem

The only thing I can think of is to bring to either a seamstress or maybe an outdoor shop. It seems like you'd mainly need someone to sew on a new zipper, or repair the existing one.

Author:  DGallagher [ Wed Jul 20, 2016 3:28 am ]
Post subject:  Re: Cooper zipper problem

Yes!! The same thing happened to my 2005 Cooper. I was very frustrated because the boat is pretty much useless without a working zipper. I managed (after trying many times) to get the teeth back aligned and the zipper together. I NEVER unzip it all the way now. It involves a very careful pull to get the stern tensioner into the skin but it works!


Author:  Ferenc [ Wed Jul 20, 2016 9:57 am ]
Post subject:  Re: Cooper zipper problem

Thanks to all of you,

I saw it exists a supposed magic slider "ZlideOn", used for changing broken slider without unsewing the zipper end. One has just to open it, insert the teeth in and clip it :

It seems working for any zipper type (plastic, metallic, ...) and up to or 7,60-7,90 mm width (size 8) or 8,60-9,00mm (size 10).
The Cooper (deck or backpack) zippers are YKK plastic model, but I'm not sure of the size (8 or 10 ?)

Haven't you heard of or tried this solution ?

If it happens to work and... last, it could be worth taking some within the repair kit... just in case.


Author:  HoosierPaddler [ Wed Jul 20, 2016 12:51 pm ]
Post subject:  Re: Cooper zipper problem


Have you tried treating the length or a portion of the zipper with a lubricant of some kind? McNett ("Zip Tech") makes some. A sewing or craft shop might have some. I don't have my copy of Ralph Diaz' folding kayak bible with me, he probably has some recommendations. You might try a scuba shop or maybe a normal sporting goods store. It might just need a thorough cleaning with fresh water and then a dry zipper lubricant and it will be fine, and not need to be replaced.

GIIx2, Kodiak, Edisto, Cooper, Citibot

Author:  Ferenc [ Thu Aug 04, 2016 11:23 am ]
Post subject:  Re: Cooper zipper problem

I finally succeed in fixing my Cooper slider, using a Zlideon slider (10A-1 model).
It's a bit expensive for a slider (10€), but it works good, although a litlle less smoothly than the original YKK one. So it's better to put a cord on the pull.

Nevertheless, it would be better to use the same slider model, that is YKK 10V metallic single pull, locking. It seems really easy to set it from the open end (see

Thanks to all fpor your tips and have good summer paddling

Author:  MGGRADY [ Mon May 22, 2017 4:40 pm ]
Post subject:  Re: Cooper zipper problem


10V on the slider identifies the slider as for a #10 Vislon zipper. Sailrite or most other outdoor fabric suppliers in the US can sell you whatever you need.

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