So I'm switching to prepreg for my helicopter canopies. Need to make a female mold that can handle 120c. Because of how the plug is made, the mold can't be made with prepreg. I mill my plug out of mdf, spray with duratec surface primer, then sand/polish. The duratec is only specd to handle about 95c so that's why I can't bake a prepreg mold on it.  I ordered some room temp cure high temp tooling epoxy and high temp surface coat. Plan is to brush the high temp surface coat onto the plug  (after frekote is applied) then do carbon fiber wet lay on top of that to create the mold. I will let it cure at room temp, then remove it from the plug and post cure the mold in the oven. Will this work? Or is it an issue to post cure a mold after it's been removed from the plug? Reason I ask is, I once post cured a cf sheet that had a perfect glossy surface. During the post cure, the surface finish got much worse. Had visible print through and lost it's nice gloss. Is this gonna happen to my mold if post curing after removing it from the plug? I could at least post cure on the plug up to 80c or so if that helps, then remove it from the plug and cure the rest of the way. Thoughts?