Do you prime/paint models before making molds for casting? Answered

I'm working on a model sculpt that I plan to cast in resin later. It's almost finished, so I'm wondering if it's okay to prime the model before using it to make a silicone mold? Or would it be best to leave it naked, so to speak? I'll be using Smooth-On products (MoldMax 300 resin and MoldStar 15 Silicone) if it helps.

Thanks!