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 Post subject: TwinTex
PostPosted: August 22nd, 2006, 12:10 pm 
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Does anyone know if Esquif are going to use Twintex for their longer tandem boats in the near future?
Alan,hint?!!
I would sure get one of the 17' ones for lightness of Kevlar and toughness of ABS


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PostPosted: August 22nd, 2006, 12:42 pm 
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When I talked to Mark Scriver their Ontario Rep, he mentioned that they were going in that direction. I`ll have a better idea this weekend when we`re at the Gat Fest. Jacques the Owner will be there and I`ll have a good idea what boats they tend to build in 2007 from Twin-Tec. I know they`re going to add two or three new tripping boats to their line plus one new playboat. Thats about all I know at this point or am allowed to say. :wink:

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PostPosted: August 22nd, 2006, 12:44 pm 
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They've openly hinted at more boats to come in Twin-Tex, but I have no idea whether they'll be new designs, old hulls, solo or tandem.

A Twin-Tex tandem boat would probably depend on whether there's enough demand in the tandem ww market - Twin-Tex is more expensive, so they've got to know that they will move a good number of canoes.

It'll be interesting to see where it goes.

PY.

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PostPosted: August 23rd, 2006, 12:22 pm 
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Thanks for the reply.
I do want something lighter (less than 55lbs) for longer river trips than my 85lbs 17' MR Explorer. At my age I find it a pain in the "balconies of the south facade" to portage the beast any longer than 500m. 8)


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PostPosted: August 23rd, 2006, 12:36 pm 
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a twintex canyon sounds like a gold mine.

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PostPosted: August 24th, 2006, 10:46 am 
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I too am watching for more boats in Twintex - even if they come in black color only. The weight reduction is significant and worth extra money for me.
:-? What money?
Jan

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 Post subject:
PostPosted: August 31st, 2006, 9:11 am 
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Ok Ill play dumb, what is TwinTex an why is it supposed to be so good?

cedarboy


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PostPosted: September 1st, 2006, 5:24 pm 
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Here you go:

http://www.twintex.com/products/tw_product.html

http://www.esquif.com/en/index.php?mod=modeles&id=26


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 Post subject:
PostPosted: September 1st, 2006, 8:30 pm 
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Twin-Tex will give you the durability of Royalex but yet the weight reduction of Kevlar but at or around the price of Royalex.

I don`t seem to know much more than I did before the Gat Fest, but as I said before Esquif will be introducting a few tandem tripping boats to their line-up in Twin-Tex for 2007.

At the Festival Esquif had a new Kevlar Champlain done with ash trim and cained contoured ash seats, complete with built in scuppers and deck vents and a contoured deep dish yokes. Wow what a Cadilac !!!!!

Now make a tandem of of Twix-Tex and add this ash trim.... wieght ,durability, looks, and cost ???? I have no doubt you'll see alot of these boats in the years to come !

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PostPosted: September 2nd, 2006, 7:06 pm 
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I'm still not getting this. Is Twintex a plastic sheet like Royalex? Or is it a composite material like fiberglass? Or something different?


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 Post subject:
PostPosted: September 2nd, 2006, 7:47 pm 
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Bryan,
I found this on the net.
Quote:
What is twintex?
Twintex is PEP or PET, which basically means that it is glassfibre reinforced plastic but instead of using a resin as the matrix, a thermoplastic plastic like polyethylene or polypropylene is used.

This means that the article has the durability of Plastic but the strength of Glassfibre. When it is molded you get a composite article that is strong tough and economic.

The particular benefit of the material is its co-woven structure, which very closely mixes the glassfibres and the plastic to produce a really well impregnated heavily glass filled laminate.

GG


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 Post subject:
PostPosted: September 2nd, 2006, 8:24 pm 
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Location: CO2 up, Temps Flat Explain That!
Plastics are often reinforced with chopped glass fiber (typically ~0.5" or 1cm in length). Recently Saint Gobain and others have developed ways to incorporate either long (3/4-2") or even continuous glass fiber into the molding process (typical injection molding and plastic processing would destroy longer fibers even if you somehow added them). As you can imagine, a continuous fiber gives a much stronger matrix than chopped glass. I actually worked on this technology for about 6 months for an automotive application in polypropylene. Presumably this is what they're doing in the twintex boats. Black hides the glass fiber best, a typical loading would be 20-45% by weight, so there's a lot of it in there. But I'd wager if you look close you can still see it, unless they put a skin coat on somehow. I'll wait for a CCF (continuous carbon fiber) boat :wink:

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 Post subject:
PostPosted: September 3rd, 2006, 8:00 am 
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I believe its an S glass fiber that is used and not fiberglass. In combining these materials you'll get more flex over the lenght of the hull. So with the durability and flex of the plastics, added to the repairability with the S-glass, than factor in the weight reduction of almost 1/4 of that of Royalex, and lets more foreget the cost of about 2/3 the price of Carbon or Kevlar you get a pretty cool material to work with. I do know Esquif has thrown alot into the R&D through the way of the Zephyr to get a better understanding of how this product holds up and to see that it has a future in the canoe building industry.

CWA you may be waiting along time for a continuous carbon fiber, my understanding is carbon does not bond well with most plastics, its a alot like Spectar in the way that it doesn`t bond well with most resins. And even when or if they can find a marriage between a cardon fiber and plastic, carbons not cheep these days so I believe it would make the base material price not so affordable for most.

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 Post subject:
PostPosted: September 3rd, 2006, 1:35 pm 
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Joined: April 22nd, 2004, 11:14 am
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Location: CO2 up, Temps Flat Explain That!
I was being facetious, carbon fiber is soooo hard to work with, continuous carbon fiber would be a nightmare, but from a materials processing standpoint, not a compatibility standpoint.

Carbon fiber has been used for many years in plastics as reinforcement in specialty applications. Heck, I've used stainless steel fibers in plastics before. You can functionalize the surface of anything and make it compatible with most any plastic. Glass is very incompatible with plastics, but silane treatments of the surface, called "sizing" in the industry, make it bond nicley to the matrix.

What I look forward to is nano materials that will strengthen plastics beyond our wildest dreams, making it possible to minimize hull thicknesses and drop boat weights to what it now unimaginably low values. It's a matter of when, not if.

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 Post subject:
PostPosted: September 3rd, 2006, 5:16 pm 
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Sorry,
Is this something a home builder can use?
Geared for white water of flat water?
A 16' prospector would weigh?

Doug

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