Hi
Im new to this and tried skinning a fuse cover.

I did the following
rough sanding with 400 grit
Rinse with industrial cleaner and lighter fluid
One layer with EC epoxy base coat
Then i waited approx 2hours when it was tacky with no paint coming off.
Then i applied one 200g 2twill pro finish layer, cut it formed it and put masking tape around the edges of the carbon.
A thick layer of laminating resin was applied.
After this i covered all the carbon area with peel ply and on top of that a layer of breather cloth and the bag connector.
Then sealed it all with plastic and managed to get a leak free seal.
Let it stay over the night and removed the peel ply.

what i found was that the carbon was firmly in plase, but there was alot of print through and the carbon looks almost dry.

So when using this technique do i have to put on additional layers of resin and vacuum bag it again and again?
How do i reduce the peel ply print on the carbon?

Yep, that's it, lots of sanding. That's how I normally do skinning, I apply the carbon with a layer of peel ply and apply vacuum. Once cured, I coat the surface with a reasonably thick layer of epoxy, and sand it down flat with 60 grit on an orbital. Then depending on the part, I might stop there and spray Duratec Sunshield which is high build and hides the 60 grit sanding marks, so that's job done. For cheaper parts, I use a roller to apply a thin layer of epoxy, just enough to fill the 60 grit scratches, let it cure and then wet sand through from 400 to 1200 before compounding.