curing process divided into 3 sections. pre-cure at room temperature under the vacuum of 28 HG inch then cure in a oven at 125 deg Celsius and then free standing post cure at 177 deg Celsius. the vacuum at all stages 28 HG inch.
Do you guys have any experience with MDF as tooling material? Any ideas how to get rid of porosity?
materials used for skins are Cycom 5320-1 prepreg and Cycom surface master 905 as first and last ply. staking 16 plies. compaction every two plies at 28 HG inch for 5 minutes minimum.
the thermal survey of a tool looks ok.
looking for your help.