Just for the heck of it I'll tell how I do laminates . I have .025 aluminum sheets I cut to the shape of the mold . Mark the bolt holes , pins what ever Punch them out with a hole punch . notch them at the sprue hole . Then I put it between the mold plates and shoot . Open the mold and you have two clean halves To use now or later . A very light coating of worm oil on the aluminum helps the separation.
