While there are a number of kayaks made from thermoformed plastic (e.g, Perception/Dagger's Airalite and Eddyline's Carbonlite 2000) the overall popularity of the boats for performance use appears to be limited and I, being one to always want to test things for myself, recently had the chance to paddle a number of these boats and after a little research have come up with a sort of pros and cons view on these kayaks.
I recently put thermoformed kayaks from Eddyline and Hurricane Kayaks to the test.
The Product(s): The first kayak I paddled was the new Eddyline Fathom LVand while I had my doubts about the boat before taking it out I was thoroughly impressed with the boat from start to finish. The first thing I noticed when I picked it up was how light it was. At 15 and a half feet the boat weighs only about 45 pounds. Unlike some of the earlier thermoform boats I had paddled in the past the Fathom had remarkably little of the flex that is normally associated with thermoformed boats. The other boats I paddled were the Eddyline Falcon (18' 50lbs) and Nighthawk 16 (16", 49 lbs), both of which I was equally pleased with, and a Hurricane Kayaks Tracer 16.5 (16'6", 46 lbs ) and Tracer 15.5.
The Pros: Thermoformed plastic seems to have hit the proverbial nail on the head as far as quality in initial product goes. Along with my testing of these boats I questioned seasoned paddlers about their own views and skepticism's of thermoformed boats and while a number of concerns were brought up the predominant flag was excessive flex in the boats' hulls. While thermoform boats do have more flex then a fiberglass or composite boat their overall strength is quite formidable. As testimony to the strength and durability of the material you will find that most new cars no longer have heavy steel bumpers but a thermoformed piece of plastic instead and if that isn't enough proof then feel free to watch this video of blatant abuse to the hull of an Delta Kayak:
Thermoformed kayaks in addition to being lightweight have the added attraction of being considerably less expensive (between 2400 and 2800 dollars for touring boats) than the typical fiberglass or composite boat which runs between 3000 and 4500 dollars. Also unlike the typical rotomolded polyethylene plastic kayak the thermoformed plastic kayak is much easier to repair once some substantial damage such as an actual hole is inflicted. Yet another lesser, but still beneficial feature is the UV fade protection included in many thermoformed plastics.
The Cons:Now to the bad news... while the benefits of the thermoformed boat are numerous and impressive the boats as a collective group have some considerable downfalls, the most notable being not all thermoformed boats are created equal. While companies like Eddyline have worked out nearly all of the problems with the material more recreation oriented companies like Hurricane Kayaks have produced less than top notch products ie: the Tracer 16.5 & 15.5 which I also paddled and found to have an unacceptable amount of flex throughout the entire boat, effecting its performance. This flex was also present in the thigh braces, making edging uncomfortable and unstable. The next downfall comes in the event of damage resulting in a leak. While the boats are easy to repair you will need to have a rep. make the repair in most cases and the more significant problem arises when water gets between the different layers of plastic allowing liquid to work its way to all parts of the boat and cause future problems.
The Breakdown:The bottom line is that these kayaks--with continued improvement--might revolutionize the kayaking world...but not just yet. Sorry if you were looking for decisiveness. The fact of the matter is these boats need work (some more than others, * cough cough*) in certain areas. However for the most part thermoformed boats should appeal to a wide variety of people such as those who are worried about weight for solo loading but don't want to put out the dough for a kevlar boat, or for those who need a boat that has some of the performance characteristics of a fiberglass boat but don't need the price attached to them. Overall I think thermoformed boats will gain prevalance in the upcoming years but for many hardcore/old-school paddlers fiberglass will remain the standard.
Product Pics & Links:
Eddyline Fathom LV:
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http://www.eddyline.com/eddyline-kayaks-legendary-design-fathom-lv.php
Eddyline Nighthawk 16:
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http://www.eddyline.com/eddyline-kayaks-legendary-design-nighthawk-16.php
Eddyline Falcon S18:
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http://www.eddyline.com/eddyline-kayaks-legendary-design-falcon-s18.php
Hurricane Kayaks Tracer 16.5:
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http://www.hurricaneaquasports.com/tracer-165.html