From: Rob Denney <harryproa@gmail.com>
To: harryproa@yahoogroups.com.au
Sent: Fri, May 20, 2011 8:47:46 AM
Subject: Re: [harryproa] Carbon
Tow is good for filament winding (irrelevant for us) , for local reinforcing and for loads that are applied in two directions, such as curved beams where the uni tends to crimp on the inside of the curve. Uni is easier to use for masts but twice or more the price. Tow is very good if you have a wet out machine, but hard work to infuse in masts.
$10/lb is a good price. IM7 is higher strength than the standard modulus stuff I use, so go for it, if you trust the seller. The 6 or 12k will be easier to wet out than the 50K stuff I use, but you will need more runs. Will save a lot of walking if you use multiple spools at the same time.
rob
What are the tradeoffs between tow and uni fabric? I would assume that the uni is easier to work with for most things. Is it just a pricing difference? How much more is uni than the equivalent tow? Can you give some examples?
- GardnerOn Fri, May 20, 2011 at 7:53 AM, Rob Denney <harryproa@gmail.com> wrote:
Ebay usually has some.
Or, I am about to order some. If a 12 pound spool is not too much, let me know tonight and I can include another roll in the order.
rob
On Fri, May 20, 2011 at 9:43 PM, Dennis Cox <dec720@att.net> wrote:
I'm sure this has been asked before and probably by me... but has anyone found any good sources recently for carbon tow here in the US? I mean specifically SMALL quantities... < 10 lbs.
Thanks