Re: [Paddlewise] pressurize the boat / glass construction

From: Doug Lloyd <douglloyd_at_shaw.ca>
Date: Sat, 07 Apr 2007 20:28:21 -0700
Sorry Mark - mean't to say Mark, not Mike.

I noticed the Epic website mentioned post-curing at elevated temperatures. 
I'm still not sure how important this is. The guys who build the strip boats 
usually elevate temperatures temporarily in musty basements or mid-winter 
workshops - but that's just to finish off curing.

Doug


> Thanks Mike.
>
> Tord mentioned rivets too. Seam joints can be such a riveting discussion I 
> guess. Well, actually, I was just speaking with Mike about his Michigan 
> Lake crossing; he said he was in the borrowed Epic Endurance because his 
> own Epic Endurance had undergone catastrophic seam failure in the surf 
> prior to the trip, both sides of the cockpit I believe. It was 
> subsequently fixed but apparently he didn't want to use it for the 
> crossing (I think he said there were some further complications that 
> hadn't been dealt with). Generally, the Epic kayaks are very well made 
> using epoxy resins, etc.
>
> I  believe the Epic kayaks use the overlap seam joint (someone correct me 
> if I'm wrong), so I'm not sure if that is a weakness, or if the surf on 
> Lake Michigan was a little too severe for the kayaks intended, designed 
> use. Apparently, Lake Michigan does get some big surf I was reminded 
> tonight. I made a joke the other day about glassing both sides of an 
> overlapping joint. Maybe that ain't a bad idea.
>
> Well, I have about 5 pounds of epoxy seaming I added to my Nordkapp. 
> Overkill for a boat perhaps, but underkill perhaps for the paddler. :-)
>
> Doug L
>
>
>> It was a failure of the glue joint. I notice on my new boat you can see a 
>> couple screw heads throught the seam tape that I didn't notice on my 
>> first boat. Perhaps along the lines of the rivet use in aircraft.
>> I figure the narrow bow and stern might be the weak link in getting 
>> pressure on the two surfaces while the glue cures.
>> Mark
>>
>>
>>
>>> Did the glue joint delaminate, or was it split just above or below the 
>>> overlap joint?
>>>
>>> Doug Lloyd
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Received on Sat Apr 07 2007 - 20:28:33 PDT

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