Hi - I have searched for the answer to this - to no avail.  I would have thought it was an FAQ ...

Are there any rules of thumb to estimate the total weight of a carbon-fibre layup i.e. the weight of the carbon cloth plus the resin?

E.g:
1 layer of 200sgm CF including wet-lay epoxy = XX gsm
2 layers of 200sgm CF including wet-lay epoxy = YY gsm
3 layers of 200sgm CF including wet-lay epoxy = ZZ gsm

Is there a 'standard' ratio of CF to resin?

I only plan to make flat sheets, wet-lay, not infusion, but with pressure to squeeze out as much epoxy as possible.

I am planning to make some aero parts so weight is important.

Thanks!  CH

its easy to work out ... A good wet-lay with compression will give you nearly 50-50 Resin to cloth ratio ..

200 gsm cloth + 200 gsm Resin  -- Multiply from there ..

Depending on how you "finish" your flat sheets (I use a mirror and peel-ply on the back) - perforated film + a layer of cloth to absorb excess resin on top-) you will need a bit more than 200 grams of resin for a sq. metre of 200gsm CF.

If you're doing Aero stuff --- Vacuum will get you the last bit of the way towards a better Resin to fibre ratio.

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