I have been making CF-foam-CF sandwiches using the resin infusion method, which involves using a layer of peel-ply under the infusion mesh. This leaves my panels with one smooth side (against the tool surface) and a rough side (courtesy of the peel ply.)

Is it possible to replace the peel-ply with, say, Perforated Release Film (or similar) to give a smoother finish? I'm not looking for a perfectly smooth/glossy surface, just not a peel-ply finish.

Would Perforated Release Film (as used in wet lay-ups) allow the resin to permiate through to the CF-foam-CF sandwich beneath or would you just end up sucking the majority of your resin into the catch pot?

Any advice appreciated.

Phil.