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PostPosted: September 3rd, 2006, 7:42 pm 
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Joined: November 23rd, 2001, 7:00 pm
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Location: Coldstream, Ontario Canada
Thanks for correcting me GWA, I must have got my information mixed up with some other product ?? :roll: :-?

Doug you should see the weight of a Twin-tec made Prospector down around 55lbs or so. I`m still learning about this product myself so I don`t know, but I think it maybe hard to get at this point because not everyone is carrying it.

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Al Greve http://www.canoewateradventuring.ca South Western Ontario's canoeing specialist



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PostPosted: September 5th, 2006, 1:03 am 
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Joined: May 7th, 2006, 12:18 pm
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Location: StPaul MN
Sound like some exciting stuff. Will be fun to see what other builders do with it if it is good as promised. Can it be molde into fine designs as composites can, or is it more like Royalex?

cedarboy


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PostPosted: September 5th, 2006, 3:56 pm 
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Location: Coldstream, Ontario Canada
Yes it can be molded like composites, depending on any inner drafts you would need to go with two part mold than vacuum bag it.

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Al Greve http://www.canoewateradventuring.ca South Western Ontario's canoeing specialist



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 Post subject: twintex
PostPosted: September 8th, 2006, 7:11 am 
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Joined: September 8th, 2006, 6:52 am
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Hi

I happened to come across the discussion about Twintex boats so thought I would post this bit of information:

I am a director of a UK based composite product manufacturer. About 18 months ago we made a prototype 4-hulled foldable catamaran in Twintex (www.fourhulls.com) and a prototype surf kayak for a UK company - Mega kayaks. Both were very difficult to make because of the vacuum bag moulding process - we had to have a vacuum bag that fitted inside the hulls as well as outside. Robson made a prototype kayak using twintex (they called it Armerlite) but I don't think it went into series production (but I could be wrong) presumably because of the sheer difficulty of manufacture.
An open topped boat (ie like a canoe) would be straightforward, but it isn't a material that a home builder could use - the stuff has to processed at around 190 degrees (celsius) in an oven, and under vacuum. The basic material is a woven cloth, 40% polypropylene, 60% glass, is almost totally unaffected by water (unlike GRP) and has extremely good impact and abrasion resistance. The reason it's generally only available in black is that it is the stock colour from Saint-Gobain. Sorry to go on about this material so much - we think it is really good stuff - we make underfloor protection guards for rally cars with it and it out-performs carbon/kevlar composites in this application


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PostPosted: September 8th, 2006, 7:57 am 
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Joined: November 18th, 2003, 5:35 pm
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m-tech composites,
Thanks for your input.
GG


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