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Re: Strip: First strip idea
By:Dan Caouette (CSCWC)
Date: 4/23/2013, 11:25 am
In Response To: Re: Strip: First strip idea *PIC* (Robert l)

So how much stronger would a boat like this be. Compared to a cedar boat built with 3/16 strips and 4 oz glass? Weight sure isn't a problem using these materials, I am consistently building between 29 an 33 lbs.

I had similar thoughts... On my Performance layups I use 3/16" thick cedar on the hull. 1/8" thick on the deck. I use 3.2oz tight weave S-2 glass throughout. For a typical offshore race kayak the bare hull weight sans outfitting is between 25 and 27 pounds. They have nearly the same stiffness as full carbon boats due to the thickness of the wood core.

Using carbon and/or Kevlar the resulting composite will be much stronger and stiffer. No doubt. There may not be any weight savings. I always thought Kevlar and carbon fiber were a lot less dense than glass and needed more resin due to the thickness . Looking at the difference in thickness between comparable weight fabrics, I see this isn't always true (most information from Soller Composites). The most common 3K fabrics are about the same thickness as 6oz glass. The lighter 4oz 1K carbon would yield a lighter boat but it is very hard to find and is about twice the price of 3K carbon.

4oz E glass (plain weave) = 0.0059"
6oz E glass (plain weave) = 0.0093"
3.7oz 1K carbon (plain) = 0.006"
5.7oz 3K carbon (plain) = 0.009"
5.0oz 3K Kevlar (4HS) = 0.006"
5.5oz 3K carbon/kevlar = 0.008"

I have vacuum-bagged interiors before. This should be interesting...

Messages In This Thread

Strip: First strip idea *PIC*
Matt Jakubek -- 4/22/2013, 11:57 am
Re: Strip: First strip idea
JohnAbercrombie -- 4/22/2013, 12:58 pm
Re: Strip: First strip idea
Matt Jakubek -- 4/22/2013, 1:23 pm
Re: Strip: First strip idea
JohnAbercrombie -- 4/22/2013, 1:14 pm
Re: Strip: First strip idea
Matt Jakubek -- 4/22/2013, 1:32 pm
Re: Strip: First strip idea
JohnAbercrombie -- 4/22/2013, 4:17 pm
Re: Strip: First strip idea *PIC*
Robert l -- 4/23/2013, 10:25 am
Re: Strip: First strip idea
Matt Jakubek -- 4/23/2013, 11:06 am
Re: Strip: First strip idea
JohnAbercrombie -- 4/23/2013, 12:43 pm
Re: Strip: First strip idea
Matt Jakubek -- 4/23/2013, 1:16 pm
Re: Strip: First strip idea
JohnAbercrombie -- 4/23/2013, 2:35 pm
Re: Strip: First strip idea
Dan Caouette (CSCWC) -- 4/23/2013, 11:25 am
Re: Strip: First strip idea
Robert Horstmann -- 4/23/2013, 12:22 pm
Re: Strip: First strip idea
Matt Jakubek -- 4/23/2013, 12:27 pm
Re: Strip: First strip idea
Dan Caouette (CSCWC) -- 4/23/2013, 12:29 pm
Re: Strip: First strip idea
Robert Horstmann -- 4/23/2013, 12:40 pm
Re: Strip: First strip idea
Dan Caouette (CSCWC) -- 4/23/2013, 12:59 pm
Re: Strip: First strip idea
Bill Hamm -- 4/24/2013, 1:19 am
Re: Strip: First strip idea
Matt Jakubek -- 4/24/2013, 10:24 am
Re: Strip: First strip idea
Bill Hamm -- 4/28/2013, 1:16 am
Re: Strip: First strip idea
Justin -- 4/30/2013, 3:35 am
Re: Strip: First strip idea
Bill Hamm -- 4/24/2013, 1:17 am
Re: Strip: First strip idea
Matt Jakubek -- 4/23/2013, 12:24 pm
Re: Strip: First strip idea *PIC*
Dan Caouette (CSCWC) -- 4/23/2013, 12:47 pm
Re: Strip: First strip idea
Bill Hamm -- 4/24/2013, 1:22 am
Re: Strip: First strip idea
JohnAbercrombie -- 4/23/2013, 12:49 pm
Re: Strip: First strip idea
Dan Caouette (CSCWC) -- 4/23/2013, 1:07 pm
Re: Strip: First strip idea
JohnAbercrombie -- 4/23/2013, 2:33 pm
Re: Strip: First strip idea
Bill Hamm -- 4/24/2013, 1:25 am
Re: Strip: First strip idea
Malcolm Schweizer -- 4/22/2013, 2:11 pm
Re: Strip: First strip idea
Matt Jakubek -- 4/22/2013, 2:35 pm
Re: Strip: First strip idea
Paul Davies -- 4/22/2013, 2:44 pm
Re: Strip: First strip idea
JohnAbercrombie -- 4/22/2013, 4:21 pm
Re: Strip: First strip idea
Matt Jakubek -- 4/22/2013, 4:38 pm
Re: Strip: First strip idea
Robert l -- 4/22/2013, 3:33 pm
Re: Strip: First strip idea
Marc Upchurch -- 4/22/2013, 10:58 pm
Re: Strip: First strip idea
Matt Jakubek -- 4/22/2013, 11:09 pm
Re: Strip: First strip idea
Marc Upchurch -- 4/23/2013, 8:14 am
Re: Strip: First strip idea
Robert Horstmann -- 4/23/2013, 11:52 am
Re: Strip: First strip idea
Matt Jakubek -- 4/23/2013, 11:54 am
Re: Strip: First strip idea
Robert Horstmann -- 4/23/2013, 12:11 pm
Re: Strip: First strip idea
Bill Hamm -- 4/24/2013, 1:29 am
Re: Strip: First strip idea
Bill Hamm -- 4/24/2013, 1:38 am
Re: Strip: First strip idea
Matt Jakubek -- 4/24/2013, 9:08 am
Re: Strip: First strip idea
Robert Horstmann -- 4/24/2013, 12:05 pm
Re: Strip: First strip idea
Etienne Muller -- 4/24/2013, 1:26 pm
Re: Strip: First strip idea
Robert Horstmann -- 4/24/2013, 1:36 pm
Re: Strip: First strip idea
Matt Jakubek -- 5/27/2013, 11:47 am