My question is, can I achieve my goal by applying a layer of epoxy to the mold and proceeding with the lay up or should I allow that coat to go tacky before proceeding?  I have seen different recommendations from different sources.  Alternatively do I need a separate gel coat?  I intend to use EL2 Epoxy Laminating Resin and "Easy-Lease" release agent, the mold contact surfaces are a mixture of mild steel and chrome.