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Help with carbon fibre layup

Posted: Thu Sep 23, 2010 7:17 pm
by chrislandy
This is my first attempt at vacuum bagging carbon fibre, although I'm pretty happy with the first go the surface is not very good (a bit voidy/rough) and there are some resin starved areas. Is this because I had too high a vacuum or should I let a layer of resin/gelcoat gel before laying up the fabric?

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Posted: Thu Sep 23, 2010 7:39 pm
by Ian200sx
looks good, I found using clear gelcoat improved results lots. Its the same as laying up FG, are you using epoxy? are the marks just dry area's?

Posted: Fri Sep 24, 2010 7:50 am
by chrislandy
Yup, using epoxy - the surface was wetted out prior to the application of the first layer and I worked the resin in pretty well on each layer as I went so I was quite suprised when I peeled it off and found it was all voidy. It seems to have gone completely dry where the vacuum attachment was (the circular mark on the bottom picture about half way up) I'll have another play over the weekend as I need to make some window winder handles for the Shelsley.

any pointers greatly appreciated!