Dinghy development: carbon fibre

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carbon fibre

Printed From: Yachts and Yachting Online
Category: Dinghy classes
Forum Name: Dinghy development
Forum Discription: The latest moves in the dinghy market
URL: http://www.yachtsandyachting.com/forum/forum_posts.asp?TID=723
Printed Date: 15 Aug 25 at 9:32pm
Software Version: Web Wiz Forums 9.665y - http://www.webwizforums.com

Topic: carbon fibre

Posted By: stuarthop
Subject: carbon fibre
Date Posted: 23 May 05 at 7:07pm

How similar is laying up carbon fibre to fibreglass as i plan to make some new parts for my scorpion

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Replies:

Posted By: Mike278
Date Posted: 23 May 05 at 7:33pm

For information on carbon fibre try looking here http://www.mci.i12.com/carbon/index.htm - http://www.mci.i12.com/carbon/index.htm , it's not boat related but gives general information

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Posted By: Phil eltringham
Date Posted: 23 May 05 at 9:17pm

Hand lay-up is the same pretty much, just remember that keeping the resin content down is important to keep the end product as efficient as possible. I think there is some good info on http://www.sailboat-technology.com - www.sailboat-technology.com but I don't know how well the site is working at the moment. Also speak to retailers/suppliers for hints.

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Posted By: Chris Noble
Date Posted: 23 May 05 at 9:32pm

roughly the same but the effect of vac-bagging and heat curing is amplified and kjeeping the resin content down is key for carbon fibre although getting the right weave for the task is also a crucial factor

what is it you are making just out of interest?

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Posted By: Jack Sparrow
Date Posted: 23 May 05 at 9:32pm

Try the UK Cherub site and or the email group there are alot of very
experiance carbon composite people that are on the email group who are
always willing to give very good advice. We also have a selction of ' how
to do' mpeg downloadable videos and a lot of technical pages. go here:

http://www.sailingsource.com/cherub/chframe.php?menu=build - http://www.sailingsource.com/cherub/chframe.php?menu=build

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Posted By: Granite
Date Posted: 23 May 05 at 10:08pm

One of the big difficulties with wetting out carbon is ensuring that the resin content is right over the whole peice of cloth. I like to use a peice of plastic like a credit card to spread the resin out. It helps to have good lighting so you can see any dry patches. It is also good to get the slow epoxy and heat the resin before you wet out so that is soaks into the cloth quicker.
Peel ply is great for smoothing down the laminate and gives a good finish for the next stage of layup.
If you can get some sort of pressure on the layup while it is curing either by vacum bagging or using heat shrink tape or even electrical tape that realy helps to consolidate the whole thing and makes the layers stick together better.

If you are going to sand carbon watch out as the dust will irritate more than glass and it can fry your power tools.

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