I recently started using a vacuum pump for my carbon fiber layups. Previously I used heat shrink which does the job but it's not ideal for outer tubes because it creates lumps in layup which take forever to sand out. My issue with the vacuum layups is the mylar. I want to wrap it around the mandrel so that it's loose enough to slide the layup off once it's finished, but not loose enough to where it creates wrinkles in the layup. It's just really difficult to get the mylar on there smoothly in the first place. It seems to wants to wrinkle up. I was wondering if there's an alternative to using mylar on the mandrel. I did some research and I was wondering if wrapping the mandrel in teflon sheets would help? Or maybe Partall Hi-Temp wax? Just something that the epoxy will not stick to and something that will make it so that I can slide the layup off of the tube relatively easily once the layup has dried. Does anyone have any ideas?