Hello all,

This is my first post after

I have been making composite panels (textile material on both sides of a hex core filled with foam). I have been doing hand layup on glass sheets to day under vacuum pressure using room temperature 2 hour curing epoxy. Next up is infusion. Currently (which I expect to remain true with the infusion) one side of the laminate (bottom against glass) has a perfect glass like flat finish while the top side has an irregular surface and at times the top corners of the panel bend in a bit possibly from vacuum pressure and lack of support / structure.

I would like to get some advice on how to make both faces of the panel flat and uniform. Perhaps place a sheet on glass on top of the entire dry textile before starting the infusion? If that leads to resin dry spots perhaps we can touch up with a top coat? Do I need to go towards a closed mold and inject the resin into the cavity? That would be a pain.

Any ideas are much appreciated thank you!