I’m new to vacuum bagging and have a few questions. I just finished a couple plugs. I just made my first mould by spraying orange tooling gel-coat and 15% Duratec. I used carnuba wax and then sprayed PVA. I had to sand the new mould with 1500, 2000 and then polished with rubbing compound to bring it to a high luster. I had to go through this process because the PVA left an orange peel textured finish in the mould. Now I’m dealing with porosity in the gelcoat, very small holes over the entire surface. Not bad but a few holes per square inch. Now when I vacuum bag my part and pull it out it’s now going to have a nice finish. I can see that I will have to sand the part and clear it with 2K clear. What a hassle.     So my big question is why not layup the mould by spraying an epoxy surface coat, and lay up the mould in epoxy and glass? The nice thing about epoxy is a person can slow down the cure rate when laying up the cloth etc. Is the epoxy surface not hard enough to endure a few part pulls? Thanks for your help, Allen